diff --git a/lam/copyright b/lam/copyright index 99d1bb45..678c1956 100644 --- a/lam/copyright +++ b/lam/copyright @@ -174,7 +174,7 @@ main license and authors: lib/fpdf.php A 2008 Olivier Plathey lib/font/Vera* B 2003 Bitstream, Inc. templates/lib/*wz_tooltip.js C Walter Zorn -lib/3rdParty/phpseclib C Jim Wigginton +lib/3rdParty/phpseclib D Jim Wigginton templates/lib/*jquery*.js D 2010 John Resig, Paul Bakaus, Fred Heusschen templates/lib/*jquery-validationEngine-*.js D 2010 Cedric Dugas and Olivier Refalo templates/lib/*jquery-fineuploader-*.js D 2010 Andrew Valums diff --git a/lam/lib/3rdParty/phpseclib/Crypt/AES.php b/lam/lib/3rdParty/phpseclib/Crypt/AES.php index efbf6339..cf8c050a 100644 --- a/lam/lib/3rdParty/phpseclib/Crypt/AES.php +++ b/lam/lib/3rdParty/phpseclib/Crypt/AES.php @@ -1,16 +1,15 @@ - * @copyright MMVIII Jim Wigginton - * @license http://www.opensource.org/licenses/mit-license.html MIT License - * @version $Id$ - * @link http://phpseclib.sourceforge.net + * @category Crypt + * @package Crypt_AES + * @author Jim Wigginton + * @copyright MMVIII Jim Wigginton + * @license http://www.opensource.org/licenses/mit-license.html MIT License + * @link http://phpseclib.sourceforge.net */ /** * Include Crypt_Rijndael */ -require_once 'Rijndael.php'; +if (!class_exists('Crypt_Rijndael')) { + include_once 'Rijndael.php'; +} /**#@+ * @access public @@ -80,31 +80,31 @@ require_once 'Rijndael.php'; * * @link http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation#Counter_.28CTR.29 */ -define('CRYPT_AES_MODE_CTR', -1); +define('CRYPT_AES_MODE_CTR', CRYPT_MODE_CTR); /** * Encrypt / decrypt using the Electronic Code Book mode. * * @link http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation#Electronic_codebook_.28ECB.29 */ -define('CRYPT_AES_MODE_ECB', 1); +define('CRYPT_AES_MODE_ECB', CRYPT_MODE_ECB); /** * Encrypt / decrypt using the Code Book Chaining mode. * * @link http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation#Cipher-block_chaining_.28CBC.29 */ -define('CRYPT_AES_MODE_CBC', 2); +define('CRYPT_AES_MODE_CBC', CRYPT_MODE_CBC); /** * Encrypt / decrypt using the Cipher Feedback mode. * * @link http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation#Cipher_feedback_.28CFB.29 */ -define('CRYPT_AES_MODE_CFB', 3); +define('CRYPT_AES_MODE_CFB', CRYPT_MODE_CFB); /** * Encrypt / decrypt using the Cipher Feedback mode. * * @link http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation#Output_feedback_.28OFB.29 */ -define('CRYPT_AES_MODE_OFB', 4); +define('CRYPT_AES_MODE_OFB', CRYPT_MODE_OFB); /**#@-*/ /**#@+ @@ -114,135 +114,59 @@ define('CRYPT_AES_MODE_OFB', 4); /** * Toggles the internal implementation */ -define('CRYPT_AES_MODE_INTERNAL', 1); +define('CRYPT_AES_MODE_INTERNAL', CRYPT_MODE_INTERNAL); /** * Toggles the mcrypt implementation */ -define('CRYPT_AES_MODE_MCRYPT', 2); +define('CRYPT_AES_MODE_MCRYPT', CRYPT_MODE_MCRYPT); /**#@-*/ /** * Pure-PHP implementation of AES. * + * @package Crypt_AES * @author Jim Wigginton * @version 0.1.0 * @access public - * @package Crypt_AES */ -class Crypt_AES extends Crypt_Rijndael { +class Crypt_AES extends Crypt_Rijndael +{ /** - * mcrypt resource for encryption + * The namespace used by the cipher for its constants. * - * The mcrypt resource can be recreated every time something needs to be created or it can be created just once. - * Since mcrypt operates in continuous mode, by default, it'll need to be recreated when in non-continuous mode. - * - * @see Crypt_AES::encrypt() + * @see Crypt_Base::const_namespace * @var String * @access private */ - var $enmcrypt; - - /** - * mcrypt resource for decryption - * - * The mcrypt resource can be recreated every time something needs to be created or it can be created just once. - * Since mcrypt operates in continuous mode, by default, it'll need to be recreated when in non-continuous mode. - * - * @see Crypt_AES::decrypt() - * @var String - * @access private - */ - var $demcrypt; - - /** - * mcrypt resource for CFB mode - * - * @see Crypt_AES::encrypt() - * @see Crypt_AES::decrypt() - * @var String - * @access private - */ - var $ecb; + var $const_namespace = 'AES'; /** * Default Constructor. * - * Determines whether or not the mcrypt extension should be used. $mode should only, at present, be - * CRYPT_AES_MODE_ECB or CRYPT_AES_MODE_CBC. If not explictly set, CRYPT_AES_MODE_CBC will be used. + * Determines whether or not the mcrypt extension should be used. * + * $mode could be: + * + * - CRYPT_AES_MODE_ECB + * + * - CRYPT_AES_MODE_CBC + * + * - CRYPT_AES_MODE_CTR + * + * - CRYPT_AES_MODE_CFB + * + * - CRYPT_AES_MODE_OFB + * + * If not explictly set, CRYPT_AES_MODE_CBC will be used. + * + * @see Crypt_Rijndael::Crypt_Rijndael() + * @see Crypt_Base::Crypt_Base() * @param optional Integer $mode - * @return Crypt_AES * @access public */ function Crypt_AES($mode = CRYPT_AES_MODE_CBC) { - if ( !defined('CRYPT_AES_MODE') ) { - switch (true) { - case extension_loaded('mcrypt'): - // i'd check to see if aes was supported, by doing in_array('des', mcrypt_list_algorithms('')), - // but since that can be changed after the object has been created, there doesn't seem to be - // a lot of point... - define('CRYPT_AES_MODE', CRYPT_AES_MODE_MCRYPT); - break; - default: - define('CRYPT_AES_MODE', CRYPT_AES_MODE_INTERNAL); - } - } - - switch ( CRYPT_AES_MODE ) { - case CRYPT_AES_MODE_MCRYPT: - switch ($mode) { - case CRYPT_AES_MODE_ECB: - $this->paddable = true; - $this->mode = MCRYPT_MODE_ECB; - break; - case CRYPT_AES_MODE_CTR: - // ctr doesn't have a constant associated with it even though it appears to be fairly widely - // supported. in lieu of knowing just how widely supported it is, i've, for now, opted not to - // include a compatibility layer. the layer has been implemented but, for now, is commented out. - $this->mode = 'ctr'; - //$this->mode = in_array('ctr', mcrypt_list_modes()) ? 'ctr' : CRYPT_AES_MODE_CTR; - break; - case CRYPT_AES_MODE_CFB: - $this->mode = 'ncfb'; - break; - case CRYPT_AES_MODE_OFB: - $this->mode = MCRYPT_MODE_NOFB; - break; - case CRYPT_AES_MODE_CBC: - default: - $this->paddable = true; - $this->mode = MCRYPT_MODE_CBC; - } - - $this->debuffer = $this->enbuffer = ''; - - break; - default: - switch ($mode) { - case CRYPT_AES_MODE_ECB: - $this->paddable = true; - $this->mode = CRYPT_RIJNDAEL_MODE_ECB; - break; - case CRYPT_AES_MODE_CTR: - $this->mode = CRYPT_RIJNDAEL_MODE_CTR; - break; - case CRYPT_AES_MODE_CFB: - $this->mode = CRYPT_RIJNDAEL_MODE_CFB; - break; - case CRYPT_AES_MODE_OFB: - $this->mode = CRYPT_RIJNDAEL_MODE_OFB; - break; - case CRYPT_AES_MODE_CBC: - default: - $this->paddable = true; - $this->mode = CRYPT_RIJNDAEL_MODE_CBC; - } - } - - if (CRYPT_AES_MODE == CRYPT_AES_MODE_INTERNAL) { - parent::Crypt_Rijndael($this->mode); - } + parent::Crypt_Rijndael($mode); } /** @@ -250,6 +174,7 @@ class Crypt_AES extends Crypt_Rijndael { * * Since Crypt_AES extends Crypt_Rijndael, this function is, technically, available, but it doesn't do anything. * + * @see Crypt_Rijndael::setBlockLength() * @access public * @param Integer $length */ @@ -257,338 +182,4 @@ class Crypt_AES extends Crypt_Rijndael { { return; } - - /** - * Encrypts a message. - * - * $plaintext will be padded with up to 16 additional bytes. Other AES implementations may or may not pad in the - * same manner. Other common approaches to padding and the reasons why it's necessary are discussed in the following - * URL: - * - * {@link http://www.di-mgt.com.au/cryptopad.html http://www.di-mgt.com.au/cryptopad.html} - * - * An alternative to padding is to, separately, send the length of the file. This is what SSH, in fact, does. - * strlen($plaintext) will still need to be a multiple of 16, however, arbitrary values can be added to make it that - * length. - * - * @see Crypt_AES::decrypt() - * @access public - * @param String $plaintext - */ - function encrypt($plaintext) - { - if ( CRYPT_AES_MODE == CRYPT_AES_MODE_MCRYPT ) { - $changed = $this->changed; - $this->_mcryptSetup(); - /* - if ($this->mode == CRYPT_AES_MODE_CTR) { - $iv = $this->encryptIV; - $xor = mcrypt_generic($this->enmcrypt, $this->_generate_xor(strlen($plaintext), $iv)); - $ciphertext = $plaintext ^ $xor; - if ($this->continuousBuffer) { - $this->encryptIV = $iv; - } - return $ciphertext; - } - */ - // re: http://phpseclib.sourceforge.net/cfb-demo.phps - // using mcrypt's default handing of CFB the above would output two different things. using phpseclib's - // rewritten CFB implementation the above outputs the same thing twice. - if ($this->mode == 'ncfb') { - if ($changed) { - $this->ecb = mcrypt_module_open(MCRYPT_RIJNDAEL_128, '', MCRYPT_MODE_ECB, ''); - mcrypt_generic_init($this->ecb, $this->key, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"); - } - - if (strlen($this->enbuffer)) { - $ciphertext = $plaintext ^ substr($this->encryptIV, strlen($this->enbuffer)); - $this->enbuffer.= $ciphertext; - if (strlen($this->enbuffer) == 16) { - $this->encryptIV = $this->enbuffer; - $this->enbuffer = ''; - mcrypt_generic_init($this->enmcrypt, $this->key, $this->encryptIV); - } - $plaintext = substr($plaintext, strlen($ciphertext)); - } else { - $ciphertext = ''; - } - - $last_pos = strlen($plaintext) & 0xFFFFFFF0; - $ciphertext.= $last_pos ? mcrypt_generic($this->enmcrypt, substr($plaintext, 0, $last_pos)) : ''; - - if (strlen($plaintext) & 0xF) { - if (strlen($ciphertext)) { - $this->encryptIV = substr($ciphertext, -16); - } - $this->encryptIV = mcrypt_generic($this->ecb, $this->encryptIV); - $this->enbuffer = substr($plaintext, $last_pos) ^ $this->encryptIV; - $ciphertext.= $this->enbuffer; - } - - return $ciphertext; - } - - if ($this->paddable) { - $plaintext = $this->_pad($plaintext); - } - - $ciphertext = mcrypt_generic($this->enmcrypt, $plaintext); - - if (!$this->continuousBuffer) { - mcrypt_generic_init($this->enmcrypt, $this->key, $this->iv); - } - - return $ciphertext; - } - - return parent::encrypt($plaintext); - } - - /** - * Decrypts a message. - * - * If strlen($ciphertext) is not a multiple of 16, null bytes will be added to the end of the string until it is. - * - * @see Crypt_AES::encrypt() - * @access public - * @param String $ciphertext - */ - function decrypt($ciphertext) - { - if ( CRYPT_AES_MODE == CRYPT_AES_MODE_MCRYPT ) { - $changed = $this->changed; - $this->_mcryptSetup(); - /* - if ($this->mode == CRYPT_AES_MODE_CTR) { - $iv = $this->decryptIV; - $xor = mcrypt_generic($this->enmcrypt, $this->_generate_xor(strlen($ciphertext), $iv)); - $plaintext = $ciphertext ^ $xor; - if ($this->continuousBuffer) { - $this->decryptIV = $iv; - } - return $plaintext; - } - */ - if ($this->mode == 'ncfb') { - if ($changed) { - $this->ecb = mcrypt_module_open(MCRYPT_RIJNDAEL_128, '', MCRYPT_MODE_ECB, ''); - mcrypt_generic_init($this->ecb, $this->key, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"); - } - - if (strlen($this->debuffer)) { - $plaintext = $ciphertext ^ substr($this->decryptIV, strlen($this->debuffer)); - - $this->debuffer.= substr($ciphertext, 0, strlen($plaintext)); - if (strlen($this->debuffer) == 16) { - $this->decryptIV = $this->debuffer; - $this->debuffer = ''; - mcrypt_generic_init($this->demcrypt, $this->key, $this->decryptIV); - } - $ciphertext = substr($ciphertext, strlen($plaintext)); - } else { - $plaintext = ''; - } - - $last_pos = strlen($ciphertext) & 0xFFFFFFF0; - $plaintext.= $last_pos ? mdecrypt_generic($this->demcrypt, substr($ciphertext, 0, $last_pos)) : ''; - - if (strlen($ciphertext) & 0xF) { - if (strlen($plaintext)) { - $this->decryptIV = substr($ciphertext, $last_pos - 16, 16); - } - $this->decryptIV = mcrypt_generic($this->ecb, $this->decryptIV); - $this->debuffer = substr($ciphertext, $last_pos); - $plaintext.= $this->debuffer ^ $this->decryptIV; - } - - return $plaintext; - } - - if ($this->paddable) { - // we pad with chr(0) since that's what mcrypt_generic does. to quote from http://php.net/function.mcrypt-generic : - // "The data is padded with "\0" to make sure the length of the data is n * blocksize." - $ciphertext = str_pad($ciphertext, (strlen($ciphertext) + 15) & 0xFFFFFFF0, chr(0)); - } - - $plaintext = mdecrypt_generic($this->demcrypt, $ciphertext); - - if (!$this->continuousBuffer) { - mcrypt_generic_init($this->demcrypt, $this->key, $this->iv); - } - - return $this->paddable ? $this->_unpad($plaintext) : $plaintext; - } - - return parent::decrypt($ciphertext); - } - - /** - * Setup mcrypt - * - * Validates all the variables. - * - * @access private - */ - function _mcryptSetup() - { - if (!$this->changed) { - return; - } - - if (!$this->explicit_key_length) { - // this just copied from Crypt_Rijndael::_setup() - $length = strlen($this->key) >> 2; - if ($length > 8) { - $length = 8; - } else if ($length < 4) { - $length = 4; - } - $this->Nk = $length; - $this->key_size = $length << 2; - } - - switch ($this->Nk) { - case 4: // 128 - $this->key_size = 16; - break; - case 5: // 160 - case 6: // 192 - $this->key_size = 24; - break; - case 7: // 224 - case 8: // 256 - $this->key_size = 32; - } - - $this->key = str_pad(substr($this->key, 0, $this->key_size), $this->key_size, chr(0)); - $this->encryptIV = $this->decryptIV = $this->iv = str_pad(substr($this->iv, 0, 16), 16, chr(0)); - - if (!isset($this->enmcrypt)) { - $mode = $this->mode; - //$mode = $this->mode == CRYPT_AES_MODE_CTR ? MCRYPT_MODE_ECB : $this->mode; - - $this->demcrypt = mcrypt_module_open(MCRYPT_RIJNDAEL_128, '', $mode, ''); - $this->enmcrypt = mcrypt_module_open(MCRYPT_RIJNDAEL_128, '', $mode, ''); - } // else should mcrypt_generic_deinit be called? - - mcrypt_generic_init($this->demcrypt, $this->key, $this->iv); - mcrypt_generic_init($this->enmcrypt, $this->key, $this->iv); - - $this->changed = false; - } - - /** - * Encrypts a block - * - * Optimized over Crypt_Rijndael's implementation by means of loop unrolling. - * - * @see Crypt_Rijndael::_encryptBlock() - * @access private - * @param String $in - * @return String - */ - function _encryptBlock($in) - { - $state = unpack('N*word', $in); - - $Nr = $this->Nr; - $w = $this->w; - $t0 = $this->t0; - $t1 = $this->t1; - $t2 = $this->t2; - $t3 = $this->t3; - - // addRoundKey and reindex $state - $state = array( - $state['word1'] ^ $w[0][0], - $state['word2'] ^ $w[0][1], - $state['word3'] ^ $w[0][2], - $state['word4'] ^ $w[0][3] - ); - - // shiftRows + subWord + mixColumns + addRoundKey - // we could loop unroll this and use if statements to do more rounds as necessary, but, in my tests, that yields - // only a marginal improvement. since that also, imho, hinders the readability of the code, i've opted not to do it. - for ($round = 1; $round < $this->Nr; $round++) { - $state = array( - $t0[$state[0] & 0xFF000000] ^ $t1[$state[1] & 0x00FF0000] ^ $t2[$state[2] & 0x0000FF00] ^ $t3[$state[3] & 0x000000FF] ^ $w[$round][0], - $t0[$state[1] & 0xFF000000] ^ $t1[$state[2] & 0x00FF0000] ^ $t2[$state[3] & 0x0000FF00] ^ $t3[$state[0] & 0x000000FF] ^ $w[$round][1], - $t0[$state[2] & 0xFF000000] ^ $t1[$state[3] & 0x00FF0000] ^ $t2[$state[0] & 0x0000FF00] ^ $t3[$state[1] & 0x000000FF] ^ $w[$round][2], - $t0[$state[3] & 0xFF000000] ^ $t1[$state[0] & 0x00FF0000] ^ $t2[$state[1] & 0x0000FF00] ^ $t3[$state[2] & 0x000000FF] ^ $w[$round][3] - ); - - } - - // subWord - $state = array( - $this->_subWord($state[0]), - $this->_subWord($state[1]), - $this->_subWord($state[2]), - $this->_subWord($state[3]) - ); - - // shiftRows + addRoundKey - $state = array( - ($state[0] & 0xFF000000) ^ ($state[1] & 0x00FF0000) ^ ($state[2] & 0x0000FF00) ^ ($state[3] & 0x000000FF) ^ $this->w[$this->Nr][0], - ($state[1] & 0xFF000000) ^ ($state[2] & 0x00FF0000) ^ ($state[3] & 0x0000FF00) ^ ($state[0] & 0x000000FF) ^ $this->w[$this->Nr][1], - ($state[2] & 0xFF000000) ^ ($state[3] & 0x00FF0000) ^ ($state[0] & 0x0000FF00) ^ ($state[1] & 0x000000FF) ^ $this->w[$this->Nr][2], - ($state[3] & 0xFF000000) ^ ($state[0] & 0x00FF0000) ^ ($state[1] & 0x0000FF00) ^ ($state[2] & 0x000000FF) ^ $this->w[$this->Nr][3] - ); - - return pack('N*', $state[0], $state[1], $state[2], $state[3]); - } - - /** - * Decrypts a block - * - * Optimized over Crypt_Rijndael's implementation by means of loop unrolling. - * - * @see Crypt_Rijndael::_decryptBlock() - * @access private - * @param String $in - * @return String - */ - function _decryptBlock($in) - { - $state = unpack('N*word', $in); - - $Nr = $this->Nr; - $dw = $this->dw; - $dt0 = $this->dt0; - $dt1 = $this->dt1; - $dt2 = $this->dt2; - $dt3 = $this->dt3; - - // addRoundKey and reindex $state - $state = array( - $state['word1'] ^ $dw[$this->Nr][0], - $state['word2'] ^ $dw[$this->Nr][1], - $state['word3'] ^ $dw[$this->Nr][2], - $state['word4'] ^ $dw[$this->Nr][3] - ); - - - // invShiftRows + invSubBytes + invMixColumns + addRoundKey - for ($round = $this->Nr - 1; $round > 0; $round--) { - $state = array( - $dt0[$state[0] & 0xFF000000] ^ $dt1[$state[3] & 0x00FF0000] ^ $dt2[$state[2] & 0x0000FF00] ^ $dt3[$state[1] & 0x000000FF] ^ $dw[$round][0], - $dt0[$state[1] & 0xFF000000] ^ $dt1[$state[0] & 0x00FF0000] ^ $dt2[$state[3] & 0x0000FF00] ^ $dt3[$state[2] & 0x000000FF] ^ $dw[$round][1], - $dt0[$state[2] & 0xFF000000] ^ $dt1[$state[1] & 0x00FF0000] ^ $dt2[$state[0] & 0x0000FF00] ^ $dt3[$state[3] & 0x000000FF] ^ $dw[$round][2], - $dt0[$state[3] & 0xFF000000] ^ $dt1[$state[2] & 0x00FF0000] ^ $dt2[$state[1] & 0x0000FF00] ^ $dt3[$state[0] & 0x000000FF] ^ $dw[$round][3] - ); - } - - // invShiftRows + invSubWord + addRoundKey - $state = array( - $this->_invSubWord(($state[0] & 0xFF000000) ^ ($state[3] & 0x00FF0000) ^ ($state[2] & 0x0000FF00) ^ ($state[1] & 0x000000FF)) ^ $dw[0][0], - $this->_invSubWord(($state[1] & 0xFF000000) ^ ($state[0] & 0x00FF0000) ^ ($state[3] & 0x0000FF00) ^ ($state[2] & 0x000000FF)) ^ $dw[0][1], - $this->_invSubWord(($state[2] & 0xFF000000) ^ ($state[1] & 0x00FF0000) ^ ($state[0] & 0x0000FF00) ^ ($state[3] & 0x000000FF)) ^ $dw[0][2], - $this->_invSubWord(($state[3] & 0xFF000000) ^ ($state[2] & 0x00FF0000) ^ ($state[1] & 0x0000FF00) ^ ($state[0] & 0x000000FF)) ^ $dw[0][3] - ); - - return pack('N*', $state[0], $state[1], $state[2], $state[3]); - } } - -// vim: ts=4:sw=4:et: -// vim6: fdl=1: \ No newline at end of file diff --git a/lam/lib/3rdParty/phpseclib/Crypt/Base.php b/lam/lib/3rdParty/phpseclib/Crypt/Base.php new file mode 100644 index 00000000..f288e79c --- /dev/null +++ b/lam/lib/3rdParty/phpseclib/Crypt/Base.php @@ -0,0 +1,1986 @@ + + * @author Hans-Juergen Petrich + * @copyright MMVII Jim Wigginton + * @license http://www.opensource.org/licenses/mit-license.html MIT License + * @version 1.0.1 + * @link http://phpseclib.sourceforge.net + */ + +/**#@+ + * @access public + * @see Crypt_Base::encrypt() + * @see Crypt_Base::decrypt() + */ +/** + * Encrypt / decrypt using the Counter mode. + * + * Set to -1 since that's what Crypt/Random.php uses to index the CTR mode. + * + * @link http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation#Counter_.28CTR.29 + */ +define('CRYPT_MODE_CTR', -1); +/** + * Encrypt / decrypt using the Electronic Code Book mode. + * + * @link http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation#Electronic_codebook_.28ECB.29 + */ +define('CRYPT_MODE_ECB', 1); +/** + * Encrypt / decrypt using the Code Book Chaining mode. + * + * @link http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation#Cipher-block_chaining_.28CBC.29 + */ +define('CRYPT_MODE_CBC', 2); +/** + * Encrypt / decrypt using the Cipher Feedback mode. + * + * @link http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation#Cipher_feedback_.28CFB.29 + */ +define('CRYPT_MODE_CFB', 3); +/** + * Encrypt / decrypt using the Output Feedback mode. + * + * @link http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation#Output_feedback_.28OFB.29 + */ +define('CRYPT_MODE_OFB', 4); +/** + * Encrypt / decrypt using streaming mode. + * + */ +define('CRYPT_MODE_STREAM', 5); +/**#@-*/ + +/**#@+ + * @access private + * @see Crypt_Base::Crypt_Base() + */ +/** + * Base value for the internal implementation $engine switch + */ +define('CRYPT_MODE_INTERNAL', 1); +/** + * Base value for the mcrypt implementation $engine switch + */ +define('CRYPT_MODE_MCRYPT', 2); +/**#@-*/ + +/** + * Base Class for all Crypt_* cipher classes + * + * @package Crypt_Base + * @author Jim Wigginton + * @author Hans-Juergen Petrich + * @version 1.0.0 + * @access public + */ +class Crypt_Base +{ + /** + * The Encryption Mode + * + * @see Crypt_Base::Crypt_Base() + * @var Integer + * @access private + */ + var $mode; + + /** + * The Block Length of the block cipher + * + * @var Integer + * @access private + */ + var $block_size = 16; + + /** + * The Key + * + * @see Crypt_Base::setKey() + * @var String + * @access private + */ + var $key = "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"; + + /** + * The Initialization Vector + * + * @see Crypt_Base::setIV() + * @var String + * @access private + */ + var $iv; + + /** + * A "sliding" Initialization Vector + * + * @see Crypt_Base::enableContinuousBuffer() + * @see Crypt_Base::_clearBuffers() + * @var String + * @access private + */ + var $encryptIV; + + /** + * A "sliding" Initialization Vector + * + * @see Crypt_Base::enableContinuousBuffer() + * @see Crypt_Base::_clearBuffers() + * @var String + * @access private + */ + var $decryptIV; + + /** + * Continuous Buffer status + * + * @see Crypt_Base::enableContinuousBuffer() + * @var Boolean + * @access private + */ + var $continuousBuffer = false; + + /** + * Encryption buffer for CTR, OFB and CFB modes + * + * @see Crypt_Base::encrypt() + * @see Crypt_Base::_clearBuffers() + * @var Array + * @access private + */ + var $enbuffer; + + /** + * Decryption buffer for CTR, OFB and CFB modes + * + * @see Crypt_Base::decrypt() + * @see Crypt_Base::_clearBuffers() + * @var Array + * @access private + */ + var $debuffer; + + /** + * mcrypt resource for encryption + * + * The mcrypt resource can be recreated every time something needs to be created or it can be created just once. + * Since mcrypt operates in continuous mode, by default, it'll need to be recreated when in non-continuous mode. + * + * @see Crypt_Base::encrypt() + * @var Resource + * @access private + */ + var $enmcrypt; + + /** + * mcrypt resource for decryption + * + * The mcrypt resource can be recreated every time something needs to be created or it can be created just once. + * Since mcrypt operates in continuous mode, by default, it'll need to be recreated when in non-continuous mode. + * + * @see Crypt_Base::decrypt() + * @var Resource + * @access private + */ + var $demcrypt; + + /** + * Does the enmcrypt resource need to be (re)initialized? + * + * @see Crypt_Twofish::setKey() + * @see Crypt_Twofish::setIV() + * @var Boolean + * @access private + */ + var $enchanged = true; + + /** + * Does the demcrypt resource need to be (re)initialized? + * + * @see Crypt_Twofish::setKey() + * @see Crypt_Twofish::setIV() + * @var Boolean + * @access private + */ + var $dechanged = true; + + /** + * mcrypt resource for CFB mode + * + * mcrypt's CFB mode, in (and only in) buffered context, + * is broken, so phpseclib implements the CFB mode by it self, + * even when the mcrypt php extension is available. + * + * In order to do the CFB-mode work (fast) phpseclib + * use a separate ECB-mode mcrypt resource. + * + * @link http://phpseclib.sourceforge.net/cfb-demo.phps + * @see Crypt_Base::encrypt() + * @see Crypt_Base::decrypt() + * @see Crypt_Base::_setupMcrypt() + * @var Resource + * @access private + */ + var $ecb; + + /** + * Optimizing value while CFB-encrypting + * + * Only relevant if $continuousBuffer enabled + * and $engine == CRYPT_MODE_MCRYPT + * + * It's faster to re-init $enmcrypt if + * $buffer bytes > $cfb_init_len than + * using the $ecb resource furthermore. + * + * This value depends of the choosen cipher + * and the time it would be needed for it's + * initialization [by mcrypt_generic_init()] + * which, typically, depends on the complexity + * on its internaly Key-expanding algorithm. + * + * @see Crypt_Base::encrypt() + * @var Integer + * @access private + */ + var $cfb_init_len = 600; + + /** + * Does internal cipher state need to be (re)initialized? + * + * @see setKey() + * @see setIV() + * @see disableContinuousBuffer() + * @var Boolean + * @access private + */ + var $changed = true; + + /** + * Padding status + * + * @see Crypt_Base::enablePadding() + * @var Boolean + * @access private + */ + var $padding = true; + + /** + * Is the mode one that is paddable? + * + * @see Crypt_Base::Crypt_Base() + * @var Boolean + * @access private + */ + var $paddable = false; + + /** + * Holds which crypt engine internaly should be use, + * which will be determined automatically on __construct() + * + * Currently available $engines are: + * - CRYPT_MODE_MCRYPT (fast, php-extension: mcrypt, extension_loaded('mcrypt') required) + * - CRYPT_MODE_INTERNAL (slower, pure php-engine, no php-extension required) + * + * In the pipeline... maybe. But currently not available: + * - CRYPT_MODE_OPENSSL (very fast, php-extension: openssl, extension_loaded('openssl') required) + * + * If possible, CRYPT_MODE_MCRYPT will be used for each cipher. + * Otherwise CRYPT_MODE_INTERNAL + * + * @see Crypt_Base::encrypt() + * @see Crypt_Base::decrypt() + * @var Integer + * @access private + */ + var $engine; + + /** + * The mcrypt specific name of the cipher + * + * Only used if $engine == CRYPT_MODE_MCRYPT + * + * @link http://www.php.net/mcrypt_module_open + * @link http://www.php.net/mcrypt_list_algorithms + * @see Crypt_Base::_setupMcrypt() + * @var String + * @access private + */ + var $cipher_name_mcrypt; + + /** + * The default password key_size used by setPassword() + * + * @see Crypt_Base::setPassword() + * @var Integer + * @access private + */ + var $password_key_size = 32; + + /** + * The default salt used by setPassword() + * + * @see Crypt_Base::setPassword() + * @var String + * @access private + */ + var $password_default_salt = 'phpseclib/salt'; + + /** + * The namespace used by the cipher for its constants. + * + * ie: AES.php is using CRYPT_AES_MODE_* for its constants + * so $const_namespace is AES + * + * DES.php is using CRYPT_DES_MODE_* for its constants + * so $const_namespace is DES... and so on + * + * All CRYPT_<$const_namespace>_MODE_* are aliases of + * the generic CRYPT_MODE_* constants, so both could be used + * for each cipher. + * + * Example: + * $aes = new Crypt_AES(CRYPT_AES_MODE_CFB); // $aes will operate in cfb mode + * $aes = new Crypt_AES(CRYPT_MODE_CFB); // identical + * + * @see Crypt_Base::Crypt_Base() + * @var String + * @access private + */ + var $const_namespace; + + /** + * The name of the performance-optimized callback function + * + * Used by encrypt() / decrypt() + * only if $engine == CRYPT_MODE_INTERNAL + * + * @see Crypt_Base::encrypt() + * @see Crypt_Base::decrypt() + * @see Crypt_Base::_setupInlineCrypt() + * @see Crypt_Base::$use_inline_crypt + * @var Callback + * @access private + */ + var $inline_crypt; + + /** + * Holds whether performance-optimized $inline_crypt() can/should be used. + * + * @see Crypt_Base::encrypt() + * @see Crypt_Base::decrypt() + * @see Crypt_Base::inline_crypt + * @var mixed + * @access private + */ + var $use_inline_crypt; + + /** + * Default Constructor. + * + * Determines whether or not the mcrypt extension should be used. + * + * $mode could be: + * + * - CRYPT_MODE_ECB + * + * - CRYPT_MODE_CBC + * + * - CRYPT_MODE_CTR + * + * - CRYPT_MODE_CFB + * + * - CRYPT_MODE_OFB + * + * (or the alias constants of the choosen cipher, for example for AES: CRYPT_AES_MODE_ECB or CRYPT_AES_MODE_CBC ...) + * + * If not explictly set, CRYPT_MODE_CBC will be used. + * + * @param optional Integer $mode + * @access public + */ + function Crypt_Base($mode = CRYPT_MODE_CBC) + { + $const_crypt_mode = 'CRYPT_' . $this->const_namespace . '_MODE'; + + // Determining the availibility of mcrypt support for the cipher + if (!defined($const_crypt_mode)) { + switch (true) { + case extension_loaded('mcrypt') && in_array($this->cipher_name_mcrypt, mcrypt_list_algorithms()): + define($const_crypt_mode, CRYPT_MODE_MCRYPT); + break; + default: + define($const_crypt_mode, CRYPT_MODE_INTERNAL); + } + } + + // Determining which internal $engine should be used. + // The fastes possible first. + switch (true) { + case empty($this->cipher_name_mcrypt): // The cipher module has no mcrypt-engine support at all so we force CRYPT_MODE_INTERNAL + $this->engine = CRYPT_MODE_INTERNAL; + break; + case constant($const_crypt_mode) == CRYPT_MODE_MCRYPT: + $this->engine = CRYPT_MODE_MCRYPT; + break; + default: + $this->engine = CRYPT_MODE_INTERNAL; + } + + // $mode dependent settings + switch ($mode) { + case CRYPT_MODE_ECB: + $this->paddable = true; + $this->mode = $mode; + break; + case CRYPT_MODE_CTR: + case CRYPT_MODE_CFB: + case CRYPT_MODE_OFB: + case CRYPT_MODE_STREAM: + $this->mode = $mode; + break; + case CRYPT_MODE_CBC: + default: + $this->paddable = true; + $this->mode = CRYPT_MODE_CBC; + } + + // Determining whether inline crypting can be used by the cipher + if ($this->use_inline_crypt !== false && function_exists('create_function')) { + $this->use_inline_crypt = true; + } + } + + /** + * Sets the initialization vector. (optional) + * + * SetIV is not required when CRYPT_MODE_ECB (or ie for AES: CRYPT_AES_MODE_ECB) is being used. If not explictly set, it'll be assumed + * to be all zero's. + * + * Note: Could, but not must, extend by the child Crypt_* class + * + * @access public + * @param String $iv + */ + function setIV($iv) + { + if ($this->mode == CRYPT_MODE_ECB) { + return; + } + + $this->iv = $iv; + $this->changed = true; + } + + /** + * Sets the key. + * + * The min/max length(s) of the key depends on the cipher which is used. + * If the key not fits the length(s) of the cipher it will paded with null bytes + * up to the closest valid key length. If the key is more than max length, + * we trim the excess bits. + * + * If the key is not explicitly set, it'll be assumed to be all null bytes. + * + * Note: Could, but not must, extend by the child Crypt_* class + * + * @access public + * @param String $key + */ + function setKey($key) + { + $this->key = $key; + $this->changed = true; + } + + /** + * Sets the password. + * + * Depending on what $method is set to, setPassword()'s (optional) parameters are as follows: + * {@link http://en.wikipedia.org/wiki/PBKDF2 pbkdf2}: + * $hash, $salt, $count, $dkLen + * + * Where $hash (default = sha1) currently supports the following hashes: see: Crypt/Hash.php + * + * Note: Could, but not must, extend by the child Crypt_* class + * + * @see Crypt/Hash.php + * @param String $password + * @param optional String $method + * @access public + */ + function setPassword($password, $method = 'pbkdf2') + { + $key = ''; + + switch ($method) { + default: // 'pbkdf2' + $func_args = func_get_args(); + + // Hash function + $hash = isset($func_args[2]) ? $func_args[2] : 'sha1'; + + // WPA and WPA2 use the SSID as the salt + $salt = isset($func_args[3]) ? $func_args[3] : $this->password_default_salt; + + // RFC2898#section-4.2 uses 1,000 iterations by default + // WPA and WPA2 use 4,096. + $count = isset($func_args[4]) ? $func_args[4] : 1000; + + // Keylength + $dkLen = isset($func_args[5]) ? $func_args[5] : $this->password_key_size; + + // Determining if php[>=5.5.0]'s hash_pbkdf2() function avail- and useable + switch (true) { + case !function_exists('hash_pbkdf2'): + case !function_exists('hash_algos'): + case !in_array($hash, hash_algos()): + if (!class_exists('Crypt_Hash')) { + include_once 'Crypt/Hash.php'; + } + $i = 1; + while (strlen($key) < $dkLen) { + $hmac = new Crypt_Hash(); + $hmac->setHash($hash); + $hmac->setKey($password); + $f = $u = $hmac->hash($salt . pack('N', $i++)); + for ($j = 2; $j <= $count; ++$j) { + $u = $hmac->hash($u); + $f^= $u; + } + $key.= $f; + } + $key = substr($key, 0, $dkLen); + break; + default: + $key = hash_pbkdf2($hash, $password, $salt, $count, $dkLen, true); + } + } + + $this->setKey($key); + } + + /** + * Encrypts a message. + * + * $plaintext will be padded with additional bytes such that it's length is a multiple of the block size. Other cipher + * implementations may or may not pad in the same manner. Other common approaches to padding and the reasons why it's + * necessary are discussed in the following + * URL: + * + * {@link http://www.di-mgt.com.au/cryptopad.html http://www.di-mgt.com.au/cryptopad.html} + * + * An alternative to padding is to, separately, send the length of the file. This is what SSH, in fact, does. + * strlen($plaintext) will still need to be a multiple of the block size, however, arbitrary values can be added to make it that + * length. + * + * Note: Could, but not must, extend by the child Crypt_* class + * + * @see Crypt_Base::decrypt() + * @access public + * @param String $plaintext + * @return String $cipertext + */ + function encrypt($plaintext) + { + if ($this->engine == CRYPT_MODE_MCRYPT) { + if ($this->changed) { + $this->_setupMcrypt(); + $this->changed = false; + } + if ($this->enchanged) { + mcrypt_generic_init($this->enmcrypt, $this->key, $this->encryptIV); + $this->enchanged = false; + } + + // re: {@link http://phpseclib.sourceforge.net/cfb-demo.phps} + // using mcrypt's default handing of CFB the above would output two different things. using phpseclib's + // rewritten CFB implementation the above outputs the same thing twice. + if ($this->mode == CRYPT_MODE_CFB && $this->continuousBuffer) { + $block_size = $this->block_size; + $iv = &$this->encryptIV; + $pos = &$this->enbuffer['pos']; + $len = strlen($plaintext); + $ciphertext = ''; + $i = 0; + if ($pos) { + $orig_pos = $pos; + $max = $block_size - $pos; + if ($len >= $max) { + $i = $max; + $len-= $max; + $pos = 0; + } else { + $i = $len; + $pos+= $len; + $len = 0; + } + $ciphertext = substr($iv, $orig_pos) ^ $plaintext; + $iv = substr_replace($iv, $ciphertext, $orig_pos, $i); + $this->enbuffer['enmcrypt_init'] = true; + } + if ($len >= $block_size) { + if ($this->enbuffer['enmcrypt_init'] === false || $len > $this->cfb_init_len) { + if ($this->enbuffer['enmcrypt_init'] === true) { + mcrypt_generic_init($this->enmcrypt, $this->key, $iv); + $this->enbuffer['enmcrypt_init'] = false; + } + $ciphertext.= mcrypt_generic($this->enmcrypt, substr($plaintext, $i, $len - $len % $block_size)); + $iv = substr($ciphertext, -$block_size); + $len%= $block_size; + } else { + while ($len >= $block_size) { + $iv = mcrypt_generic($this->ecb, $iv) ^ substr($plaintext, $i, $block_size); + $ciphertext.= $iv; + $len-= $block_size; + $i+= $block_size; + } + } + } + + if ($len) { + $iv = mcrypt_generic($this->ecb, $iv); + $block = $iv ^ substr($plaintext, -$len); + $iv = substr_replace($iv, $block, 0, $len); + $ciphertext.= $block; + $pos = $len; + } + + return $ciphertext; + } + + if ($this->paddable) { + $plaintext = $this->_pad($plaintext); + } + + $ciphertext = mcrypt_generic($this->enmcrypt, $plaintext); + + if (!$this->continuousBuffer) { + mcrypt_generic_init($this->enmcrypt, $this->key, $this->encryptIV); + } + + return $ciphertext; + } + + if ($this->changed) { + $this->_setup(); + $this->changed = false; + } + if ($this->use_inline_crypt) { + $inline = $this->inline_crypt; + return $inline('encrypt', $this, $plaintext); + } + if ($this->paddable) { + $plaintext = $this->_pad($plaintext); + } + + $buffer = &$this->enbuffer; + $block_size = $this->block_size; + $ciphertext = ''; + switch ($this->mode) { + case CRYPT_MODE_ECB: + for ($i = 0; $i < strlen($plaintext); $i+=$block_size) { + $ciphertext.= $this->_encryptBlock(substr($plaintext, $i, $block_size)); + } + break; + case CRYPT_MODE_CBC: + $xor = $this->encryptIV; + for ($i = 0; $i < strlen($plaintext); $i+=$block_size) { + $block = substr($plaintext, $i, $block_size); + $block = $this->_encryptBlock($block ^ $xor); + $xor = $block; + $ciphertext.= $block; + } + if ($this->continuousBuffer) { + $this->encryptIV = $xor; + } + break; + case CRYPT_MODE_CTR: + $xor = $this->encryptIV; + if (strlen($buffer['encrypted'])) { + for ($i = 0; $i < strlen($plaintext); $i+=$block_size) { + $block = substr($plaintext, $i, $block_size); + if (strlen($block) > strlen($buffer['encrypted'])) { + $buffer['encrypted'].= $this->_encryptBlock($this->_generateXor($xor, $block_size)); + } + $key = $this->_stringShift($buffer['encrypted'], $block_size); + $ciphertext.= $block ^ $key; + } + } else { + for ($i = 0; $i < strlen($plaintext); $i+=$block_size) { + $block = substr($plaintext, $i, $block_size); + $key = $this->_encryptBlock($this->_generateXor($xor, $block_size)); + $ciphertext.= $block ^ $key; + } + } + if ($this->continuousBuffer) { + $this->encryptIV = $xor; + if ($start = strlen($plaintext) % $block_size) { + $buffer['encrypted'] = substr($key, $start) . $buffer['encrypted']; + } + } + break; + case CRYPT_MODE_CFB: + // cfb loosely routines inspired by openssl's: + // {@link http://cvs.openssl.org/fileview?f=openssl/crypto/modes/cfb128.c&v=1.3.2.2.2.1} + if ($this->continuousBuffer) { + $iv = &$this->encryptIV; + $pos = &$buffer['pos']; + } else { + $iv = $this->encryptIV; + $pos = 0; + } + $len = strlen($plaintext); + $i = 0; + if ($pos) { + $orig_pos = $pos; + $max = $block_size - $pos; + if ($len >= $max) { + $i = $max; + $len-= $max; + $pos = 0; + } else { + $i = $len; + $pos+= $len; + $len = 0; + } + // ie. $i = min($max, $len), $len-= $i, $pos+= $i, $pos%= $blocksize + $ciphertext = substr($iv, $orig_pos) ^ $plaintext; + $iv = substr_replace($iv, $ciphertext, $orig_pos, $i); + } + while ($len >= $block_size) { + $iv = $this->_encryptBlock($iv) ^ substr($plaintext, $i, $block_size); + $ciphertext.= $iv; + $len-= $block_size; + $i+= $block_size; + } + if ($len) { + $iv = $this->_encryptBlock($iv); + $block = $iv ^ substr($plaintext, $i); + $iv = substr_replace($iv, $block, 0, $len); + $ciphertext.= $block; + $pos = $len; + } + break; + case CRYPT_MODE_OFB: + $xor = $this->encryptIV; + if (strlen($buffer['xor'])) { + for ($i = 0; $i < strlen($plaintext); $i+=$block_size) { + $block = substr($plaintext, $i, $block_size); + if (strlen($block) > strlen($buffer['xor'])) { + $xor = $this->_encryptBlock($xor); + $buffer['xor'].= $xor; + } + $key = $this->_stringShift($buffer['xor'], $block_size); + $ciphertext.= $block ^ $key; + } + } else { + for ($i = 0; $i < strlen($plaintext); $i+=$block_size) { + $xor = $this->_encryptBlock($xor); + $ciphertext.= substr($plaintext, $i, $block_size) ^ $xor; + } + $key = $xor; + } + if ($this->continuousBuffer) { + $this->encryptIV = $xor; + if ($start = strlen($plaintext) % $block_size) { + $buffer['xor'] = substr($key, $start) . $buffer['xor']; + } + } + break; + case CRYPT_MODE_STREAM: + $ciphertext = $this->_encryptBlock($plaintext); + break; + } + + return $ciphertext; + } + + /** + * Decrypts a message. + * + * If strlen($ciphertext) is not a multiple of the block size, null bytes will be added to the end of the string until + * it is. + * + * Note: Could, but not must, extend by the child Crypt_* class + * + * @see Crypt_Base::encrypt() + * @access public + * @param String $ciphertext + * @return String $plaintext + */ + function decrypt($ciphertext) + { + if ($this->engine == CRYPT_MODE_MCRYPT) { + $block_size = $this->block_size; + if ($this->changed) { + $this->_setupMcrypt(); + $this->changed = false; + } + if ($this->dechanged) { + mcrypt_generic_init($this->demcrypt, $this->key, $this->decryptIV); + $this->dechanged = false; + } + + if ($this->mode == CRYPT_MODE_CFB && $this->continuousBuffer) { + $iv = &$this->decryptIV; + $pos = &$this->debuffer['pos']; + $len = strlen($ciphertext); + $plaintext = ''; + $i = 0; + if ($pos) { + $orig_pos = $pos; + $max = $block_size - $pos; + if ($len >= $max) { + $i = $max; + $len-= $max; + $pos = 0; + } else { + $i = $len; + $pos+= $len; + $len = 0; + } + // ie. $i = min($max, $len), $len-= $i, $pos+= $i, $pos%= $blocksize + $plaintext = substr($iv, $orig_pos) ^ $ciphertext; + $iv = substr_replace($iv, substr($ciphertext, 0, $i), $orig_pos, $i); + } + if ($len >= $block_size) { + $cb = substr($ciphertext, $i, $len - $len % $block_size); + $plaintext.= mcrypt_generic($this->ecb, $iv . $cb) ^ $cb; + $iv = substr($cb, -$block_size); + $len%= $block_size; + } + if ($len) { + $iv = mcrypt_generic($this->ecb, $iv); + $plaintext.= $iv ^ substr($ciphertext, -$len); + $iv = substr_replace($iv, substr($ciphertext, -$len), 0, $len); + $pos = $len; + } + + return $plaintext; + } + + if ($this->paddable) { + // we pad with chr(0) since that's what mcrypt_generic does. to quote from {@link http://www.php.net/function.mcrypt-generic}: + // "The data is padded with "\0" to make sure the length of the data is n * blocksize." + $ciphertext = str_pad($ciphertext, strlen($ciphertext) + ($block_size - strlen($ciphertext) % $block_size) % $block_size, chr(0)); + } + + $plaintext = mdecrypt_generic($this->demcrypt, $ciphertext); + + if (!$this->continuousBuffer) { + mcrypt_generic_init($this->demcrypt, $this->key, $this->decryptIV); + } + + return $this->paddable ? $this->_unpad($plaintext) : $plaintext; + } + + if ($this->changed) { + $this->_setup(); + $this->changed = false; + } + if ($this->use_inline_crypt) { + $inline = $this->inline_crypt; + return $inline('decrypt', $this, $ciphertext); + } + + $block_size = $this->block_size; + if ($this->paddable) { + // we pad with chr(0) since that's what mcrypt_generic does [...] + $ciphertext = str_pad($ciphertext, strlen($ciphertext) + ($block_size - strlen($ciphertext) % $block_size) % $block_size, chr(0)); + } + + $buffer = &$this->debuffer; + $plaintext = ''; + switch ($this->mode) { + case CRYPT_MODE_ECB: + for ($i = 0; $i < strlen($ciphertext); $i+=$block_size) { + $plaintext.= $this->_decryptBlock(substr($ciphertext, $i, $block_size)); + } + break; + case CRYPT_MODE_CBC: + $xor = $this->decryptIV; + for ($i = 0; $i < strlen($ciphertext); $i+=$block_size) { + $block = substr($ciphertext, $i, $block_size); + $plaintext.= $this->_decryptBlock($block) ^ $xor; + $xor = $block; + } + if ($this->continuousBuffer) { + $this->decryptIV = $xor; + } + break; + case CRYPT_MODE_CTR: + $xor = $this->decryptIV; + if (strlen($buffer['ciphertext'])) { + for ($i = 0; $i < strlen($ciphertext); $i+=$block_size) { + $block = substr($ciphertext, $i, $block_size); + if (strlen($block) > strlen($buffer['ciphertext'])) { + $buffer['ciphertext'].= $this->_encryptBlock($this->_generateXor($xor, $block_size)); + } + $key = $this->_stringShift($buffer['ciphertext'], $block_size); + $plaintext.= $block ^ $key; + } + } else { + for ($i = 0; $i < strlen($ciphertext); $i+=$block_size) { + $block = substr($ciphertext, $i, $block_size); + $key = $this->_encryptBlock($this->_generateXor($xor, $block_size)); + $plaintext.= $block ^ $key; + } + } + if ($this->continuousBuffer) { + $this->decryptIV = $xor; + if ($start = strlen($ciphertext) % $block_size) { + $buffer['ciphertext'] = substr($key, $start) . $buffer['ciphertext']; + } + } + break; + case CRYPT_MODE_CFB: + if ($this->continuousBuffer) { + $iv = &$this->decryptIV; + $pos = &$buffer['pos']; + } else { + $iv = $this->decryptIV; + $pos = 0; + } + $len = strlen($ciphertext); + $i = 0; + if ($pos) { + $orig_pos = $pos; + $max = $block_size - $pos; + if ($len >= $max) { + $i = $max; + $len-= $max; + $pos = 0; + } else { + $i = $len; + $pos+= $len; + $len = 0; + } + // ie. $i = min($max, $len), $len-= $i, $pos+= $i, $pos%= $blocksize + $plaintext = substr($iv, $orig_pos) ^ $ciphertext; + $iv = substr_replace($iv, substr($ciphertext, 0, $i), $orig_pos, $i); + } + while ($len >= $block_size) { + $iv = $this->_encryptBlock($iv); + $cb = substr($ciphertext, $i, $block_size); + $plaintext.= $iv ^ $cb; + $iv = $cb; + $len-= $block_size; + $i+= $block_size; + } + if ($len) { + $iv = $this->_encryptBlock($iv); + $plaintext.= $iv ^ substr($ciphertext, $i); + $iv = substr_replace($iv, substr($ciphertext, $i), 0, $len); + $pos = $len; + } + break; + case CRYPT_MODE_OFB: + $xor = $this->decryptIV; + if (strlen($buffer['xor'])) { + for ($i = 0; $i < strlen($ciphertext); $i+=$block_size) { + $block = substr($ciphertext, $i, $block_size); + if (strlen($block) > strlen($buffer['xor'])) { + $xor = $this->_encryptBlock($xor); + $buffer['xor'].= $xor; + } + $key = $this->_stringShift($buffer['xor'], $block_size); + $plaintext.= $block ^ $key; + } + } else { + for ($i = 0; $i < strlen($ciphertext); $i+=$block_size) { + $xor = $this->_encryptBlock($xor); + $plaintext.= substr($ciphertext, $i, $block_size) ^ $xor; + } + $key = $xor; + } + if ($this->continuousBuffer) { + $this->decryptIV = $xor; + if ($start = strlen($ciphertext) % $block_size) { + $buffer['xor'] = substr($key, $start) . $buffer['xor']; + } + } + break; + case CRYPT_MODE_STREAM: + $plaintext = $this->_decryptBlock($ciphertext); + break; + } + return $this->paddable ? $this->_unpad($plaintext) : $plaintext; + } + + /** + * Pad "packets". + * + * Block ciphers working by encrypting between their specified [$this->]block_size at a time + * If you ever need to encrypt or decrypt something that isn't of the proper length, it becomes necessary to + * pad the input so that it is of the proper length. + * + * Padding is enabled by default. Sometimes, however, it is undesirable to pad strings. Such is the case in SSH, + * where "packets" are padded with random bytes before being encrypted. Unpad these packets and you risk stripping + * away characters that shouldn't be stripped away. (SSH knows how many bytes are added because the length is + * transmitted separately) + * + * @see Crypt_Base::disablePadding() + * @access public + */ + function enablePadding() + { + $this->padding = true; + } + + /** + * Do not pad packets. + * + * @see Crypt_Base::enablePadding() + * @access public + */ + function disablePadding() + { + $this->padding = false; + } + + /** + * Treat consecutive "packets" as if they are a continuous buffer. + * + * Say you have a 32-byte plaintext $plaintext. Using the default behavior, the two following code snippets + * will yield different outputs: + * + * + * echo $rijndael->encrypt(substr($plaintext, 0, 16)); + * echo $rijndael->encrypt(substr($plaintext, 16, 16)); + * + * + * echo $rijndael->encrypt($plaintext); + * + * + * The solution is to enable the continuous buffer. Although this will resolve the above discrepancy, it creates + * another, as demonstrated with the following: + * + * + * $rijndael->encrypt(substr($plaintext, 0, 16)); + * echo $rijndael->decrypt($rijndael->encrypt(substr($plaintext, 16, 16))); + * + * + * echo $rijndael->decrypt($rijndael->encrypt(substr($plaintext, 16, 16))); + * + * + * With the continuous buffer disabled, these would yield the same output. With it enabled, they yield different + * outputs. The reason is due to the fact that the initialization vector's change after every encryption / + * decryption round when the continuous buffer is enabled. When it's disabled, they remain constant. + * + * Put another way, when the continuous buffer is enabled, the state of the Crypt_*() object changes after each + * encryption / decryption round, whereas otherwise, it'd remain constant. For this reason, it's recommended that + * continuous buffers not be used. They do offer better security and are, in fact, sometimes required (SSH uses them), + * however, they are also less intuitive and more likely to cause you problems. + * + * Note: Could, but not must, extend by the child Crypt_* class + * + * @see Crypt_Base::disableContinuousBuffer() + * @access public + */ + function enableContinuousBuffer() + { + if ($this->mode == CRYPT_MODE_ECB) { + return; + } + + $this->continuousBuffer = true; + } + + /** + * Treat consecutive packets as if they are a discontinuous buffer. + * + * The default behavior. + * + * Note: Could, but not must, extend by the child Crypt_* class + * + * @see Crypt_Base::enableContinuousBuffer() + * @access public + */ + function disableContinuousBuffer() + { + if ($this->mode == CRYPT_MODE_ECB) { + return; + } + if (!$this->continuousBuffer) { + return; + } + + $this->continuousBuffer = false; + $this->changed = true; + } + + /** + * Encrypts a block + * + * Note: Must extend by the child Crypt_* class + * + * @access private + * @param String $in + * @return String + */ + function _encryptBlock($in) + { + user_error((version_compare(PHP_VERSION, '5.0.0', '>=') ? __METHOD__ : __FUNCTION__) . '() must extend by class ' . get_class($this), E_USER_ERROR); + } + + /** + * Decrypts a block + * + * Note: Must extend by the child Crypt_* class + * + * @access private + * @param String $in + * @return String + */ + function _decryptBlock($in) + { + user_error((version_compare(PHP_VERSION, '5.0.0', '>=') ? __METHOD__ : __FUNCTION__) . '() must extend by class ' . get_class($this), E_USER_ERROR); + } + + /** + * Setup the key (expansion) + * + * Only used if $engine == CRYPT_MODE_INTERNAL + * + * Note: Must extend by the child Crypt_* class + * + * @see Crypt_Base::_setup() + * @access private + */ + function _setupKey() + { + user_error((version_compare(PHP_VERSION, '5.0.0', '>=') ? __METHOD__ : __FUNCTION__) . '() must extend by class ' . get_class($this), E_USER_ERROR); + } + + /** + * Setup the CRYPT_MODE_INTERNAL $engine + * + * (re)init, if necessary, the internal cipher $engine and flush all $buffers + * Used (only) if $engine == CRYPT_MODE_INTERNAL + * + * _setup() will be called each time if $changed === true + * typically this happens when using one or more of following public methods: + * + * - setKey() + * + * - setIV() + * + * - disableContinuousBuffer() + * + * - First run of encrypt() / decrypt() with no init-settings + * + * Internally: _setup() is called always before(!) en/decryption. + * + * Note: Could, but not must, extend by the child Crypt_* class + * + * @see setKey() + * @see setIV() + * @see disableContinuousBuffer() + * @access private + */ + function _setup() + { + $this->_clearBuffers(); + $this->_setupKey(); + + if ($this->use_inline_crypt) { + $this->_setupInlineCrypt(); + } + } + + /** + * Setup the CRYPT_MODE_MCRYPT $engine + * + * (re)init, if necessary, the (ext)mcrypt resources and flush all $buffers + * Used (only) if $engine = CRYPT_MODE_MCRYPT + * + * _setupMcrypt() will be called each time if $changed === true + * typically this happens when using one or more of following public methods: + * + * - setKey() + * + * - setIV() + * + * - disableContinuousBuffer() + * + * - First run of encrypt() / decrypt() + * + * + * Note: Could, but not must, extend by the child Crypt_* class + * + * @see setKey() + * @see setIV() + * @see disableContinuousBuffer() + * @access private + */ + function _setupMcrypt() + { + $this->_clearBuffers(); + $this->enchanged = $this->dechanged = true; + + if (!isset($this->enmcrypt)) { + static $mcrypt_modes = array( + CRYPT_MODE_CTR => 'ctr', + CRYPT_MODE_ECB => MCRYPT_MODE_ECB, + CRYPT_MODE_CBC => MCRYPT_MODE_CBC, + CRYPT_MODE_CFB => 'ncfb', + CRYPT_MODE_OFB => MCRYPT_MODE_NOFB, + CRYPT_MODE_STREAM => MCRYPT_MODE_STREAM, + ); + + $this->demcrypt = mcrypt_module_open($this->cipher_name_mcrypt, '', $mcrypt_modes[$this->mode], ''); + $this->enmcrypt = mcrypt_module_open($this->cipher_name_mcrypt, '', $mcrypt_modes[$this->mode], ''); + + // we need the $ecb mcrypt resource (only) in MODE_CFB with enableContinuousBuffer() + // to workaround mcrypt's broken ncfb implementation in buffered mode + // see: {@link http://phpseclib.sourceforge.net/cfb-demo.phps} + if ($this->mode == CRYPT_MODE_CFB) { + $this->ecb = mcrypt_module_open($this->cipher_name_mcrypt, '', MCRYPT_MODE_ECB, ''); + } + + } // else should mcrypt_generic_deinit be called? + + if ($this->mode == CRYPT_MODE_CFB) { + mcrypt_generic_init($this->ecb, $this->key, str_repeat("\0", $this->block_size)); + } + } + + /** + * Pads a string + * + * Pads a string using the RSA PKCS padding standards so that its length is a multiple of the blocksize. + * $this->block_size - (strlen($text) % $this->block_size) bytes are added, each of which is equal to + * chr($this->block_size - (strlen($text) % $this->block_size) + * + * If padding is disabled and $text is not a multiple of the blocksize, the string will be padded regardless + * and padding will, hence forth, be enabled. + * + * @see Crypt_Base::_unpad() + * @param String $text + * @access private + * @return String + */ + function _pad($text) + { + $length = strlen($text); + + if (!$this->padding) { + if ($length % $this->block_size == 0) { + return $text; + } else { + user_error("The plaintext's length ($length) is not a multiple of the block size ({$this->block_size})"); + $this->padding = true; + } + } + + $pad = $this->block_size - ($length % $this->block_size); + + return str_pad($text, $length + $pad, chr($pad)); + } + + /** + * Unpads a string. + * + * If padding is enabled and the reported padding length is invalid the encryption key will be assumed to be wrong + * and false will be returned. + * + * @see Crypt_Base::_pad() + * @param String $text + * @access private + * @return String + */ + function _unpad($text) + { + if (!$this->padding) { + return $text; + } + + $length = ord($text[strlen($text) - 1]); + + if (!$length || $length > $this->block_size) { + return false; + } + + return substr($text, 0, -$length); + } + + /** + * Clears internal buffers + * + * Clearing/resetting the internal buffers is done everytime + * after disableContinuousBuffer() or on cipher $engine (re)init + * ie after setKey() or setIV() + * + * Note: Could, but not must, extend by the child Crypt_* class + * + * @access public + */ + function _clearBuffers() + { + $this->enbuffer = array('encrypted' => '', 'xor' => '', 'pos' => 0, 'enmcrypt_init' => true); + $this->debuffer = array('ciphertext' => '', 'xor' => '', 'pos' => 0, 'demcrypt_init' => true); + + // mcrypt's handling of invalid's $iv: + // $this->encryptIV = $this->decryptIV = strlen($this->iv) == $this->block_size ? $this->iv : str_repeat("\0", $this->block_size); + $this->encryptIV = $this->decryptIV = str_pad(substr($this->iv, 0, $this->block_size), $this->block_size, "\0"); + } + + /** + * String Shift + * + * Inspired by array_shift + * + * @param String $string + * @param optional Integer $index + * @access private + * @return String + */ + function _stringShift(&$string, $index = 1) + { + $substr = substr($string, 0, $index); + $string = substr($string, $index); + return $substr; + } + + /** + * Generate CTR XOR encryption key + * + * Encrypt the output of this and XOR it against the ciphertext / plaintext to get the + * plaintext / ciphertext in CTR mode. + * + * @see Crypt_Base::decrypt() + * @see Crypt_Base::encrypt() + * @param String $iv + * @param Integer $length + * @access private + * @return String $xor + */ + function _generateXor(&$iv, $length) + { + $xor = ''; + $block_size = $this->block_size; + $num_blocks = floor(($length + ($block_size - 1)) / $block_size); + for ($i = 0; $i < $num_blocks; $i++) { + $xor.= $iv; + for ($j = 4; $j <= $block_size; $j+= 4) { + $temp = substr($iv, -$j, 4); + switch ($temp) { + case "\xFF\xFF\xFF\xFF": + $iv = substr_replace($iv, "\x00\x00\x00\x00", -$j, 4); + break; + case "\x7F\xFF\xFF\xFF": + $iv = substr_replace($iv, "\x80\x00\x00\x00", -$j, 4); + break 2; + default: + extract(unpack('Ncount', $temp)); + $iv = substr_replace($iv, pack('N', $count + 1), -$j, 4); + break 2; + } + } + } + + return $xor; + } + + /** + * Setup the performance-optimized function for de/encrypt() + * + * Stores the created (or existing) callback function-name + * in $this->inline_crypt + * + * Internally for phpseclib developers: + * + * _setupInlineCrypt() would be called only if: + * + * - $engine == CRYPT_MODE_INTERNAL and + * + * - $use_inline_crypt === true + * + * - each time on _setup(), after(!) _setupKey() + * + * + * This ensures that _setupInlineCrypt() has allways a + * full ready2go initializated internal cipher $engine state + * where, for example, the keys allready expanded, + * keys/block_size calculated and such. + * + * It is, each time if called, the responsibility of _setupInlineCrypt(): + * + * - to set $this->inline_crypt to a valid and fully working callback function + * as a (faster) replacement for encrypt() / decrypt() + * + * - NOT to create unlimited callback functions (for memory reasons!) + * no matter how often _setupInlineCrypt() would be called. At some + * point of amount they must be generic re-useable. + * + * - the code of _setupInlineCrypt() it self, + * and the generated callback code, + * must be, in following order: + * - 100% safe + * - 100% compatible to encrypt()/decrypt() + * - using only php5+ features/lang-constructs/php-extensions if + * compatibility (down to php4) or fallback is provided + * - readable/maintainable/understandable/commented and... not-cryptic-styled-code :-) + * - >= 10% faster than encrypt()/decrypt() [which is, by the way, + * the reason for the existence of _setupInlineCrypt() :-)] + * - memory-nice + * - short (as good as possible) + * + * Note: - _setupInlineCrypt() is using _createInlineCryptFunction() to create the full callback function code. + * - In case of using inline crypting, _setupInlineCrypt() must extend by the child Crypt_* class. + * - The following variable names are reserved: + * - $_* (all variable names prefixed with an underscore) + * - $self (object reference to it self. Do not use $this, but $self instead) + * - $in (the content of $in has to en/decrypt by the generated code) + * - The callback function should not use the 'return' statement, but en/decrypt'ing the content of $in only + * + * + * @see Crypt_Base::_setup() + * @see Crypt_Base::_createInlineCryptFunction() + * @see Crypt_Base::encrypt() + * @see Crypt_Base::decrypt() + * @access private + */ + function _setupInlineCrypt() + { + // If a Crypt_* class providing inline crypting it must extend _setupInlineCrypt() + + // If, for any reason, an extending Crypt_Base() Crypt_* class + // not using inline crypting then it must be ensured that: $this->use_inline_crypt = false + // ie in the class var declaration of $use_inline_crypt in general for the Crypt_* class, + // in the constructor at object instance-time + // or, if it's runtime-specific, at runtime + + $this->use_inline_crypt = false; + } + + /** + * Creates the performance-optimized function for en/decrypt() + * + * Internally for phpseclib developers: + * + * _createInlineCryptFunction(): + * + * - merge the $cipher_code [setup'ed by _setupInlineCrypt()] + * with the current [$this->]mode of operation code + * + * - create the $inline function, which called by encrypt() / decrypt() + * as its replacement to speed up the en/decryption operations. + * + * - return the name of the created $inline callback function + * + * - used to speed up en/decryption + * + * + * + * The main reason why can speed up things [up to 50%] this way are: + * + * - using variables more effective then regular. + * (ie no use of expensive arrays but integers $k_0, $k_1 ... + * or even, for example, the pure $key[] values hardcoded) + * + * - avoiding 1000's of function calls of ie _encryptBlock() + * but inlining the crypt operations. + * in the mode of operation for() loop. + * + * - full loop unroll the (sometimes key-dependent) rounds + * avoiding this way ++$i counters and runtime-if's etc... + * + * The basic code architectur of the generated $inline en/decrypt() + * lambda function, in pseudo php, is: + * + * + * +----------------------------------------------------------------------------------------------+ + * | callback $inline = create_function: | + * | lambda_function_0001_crypt_ECB($action, $text) | + * | { | + * | INSERT PHP CODE OF: | + * | $cipher_code['init_crypt']; // general init code. | + * | // ie: $sbox'es declarations used for | + * | // encrypt and decrypt'ing. | + * | | + * | switch ($action) { | + * | case 'encrypt': | + * | INSERT PHP CODE OF: | + * | $cipher_code['init_encrypt']; // encrypt sepcific init code. | + * | ie: specified $key or $box | + * | declarations for encrypt'ing. | + * | | + * | foreach ($ciphertext) { | + * | $in = $block_size of $ciphertext; | + * | | + * | INSERT PHP CODE OF: | + * | $cipher_code['encrypt_block']; // encrypt's (string) $in, which is always: | + * | // strlen($in) == $this->block_size | + * | // here comes the cipher algorithm in action | + * | // for encryption. | + * | // $cipher_code['encrypt_block'] has to | + * | // encrypt the content of the $in variable | + * | | + * | $plaintext .= $in; | + * | } | + * | return $plaintext; | + * | | + * | case 'decrypt': | + * | INSERT PHP CODE OF: | + * | $cipher_code['init_decrypt']; // decrypt sepcific init code | + * | ie: specified $key or $box | + * | declarations for decrypt'ing. | + * | foreach ($plaintext) { | + * | $in = $block_size of $plaintext; | + * | | + * | INSERT PHP CODE OF: | + * | $cipher_code['decrypt_block']; // decrypt's (string) $in, which is always | + * | // strlen($in) == $this->block_size | + * | // here comes the cipher algorithm in action | + * | // for decryption. | + * | // $cipher_code['decrypt_block'] has to | + * | // decrypt the content of the $in variable | + * | $ciphertext .= $in; | + * | } | + * | return $ciphertext; | + * | } | + * | } | + * +----------------------------------------------------------------------------------------------+ + * + * + * See also the Crypt_*::_setupInlineCrypt()'s for + * productive inline $cipher_code's how they works. + * + * Structure of: + * + * $cipher_code = array( + * 'init_crypt' => (string) '', // optional + * 'init_encrypt' => (string) '', // optional + * 'init_decrypt' => (string) '', // optional + * 'encrypt_block' => (string) '', // required + * 'decrypt_block' => (string) '' // required + * ); + * + * + * @see Crypt_Base::_setupInlineCrypt() + * @see Crypt_Base::encrypt() + * @see Crypt_Base::decrypt() + * @param Array $cipher_code + * @access private + * @return String (the name of the created callback function) + */ + function _createInlineCryptFunction($cipher_code) + { + $block_size = $this->block_size; + + // optional + $init_crypt = isset($cipher_code['init_crypt']) ? $cipher_code['init_crypt'] : ''; + $init_encrypt = isset($cipher_code['init_encrypt']) ? $cipher_code['init_encrypt'] : ''; + $init_decrypt = isset($cipher_code['init_decrypt']) ? $cipher_code['init_decrypt'] : ''; + // required + $encrypt_block = $cipher_code['encrypt_block']; + $decrypt_block = $cipher_code['decrypt_block']; + + // Generating mode of operation inline code, + // merged with the $cipher_code algorithm + // for encrypt- and decryption. + switch ($this->mode) { + case CRYPT_MODE_ECB: + $encrypt = $init_encrypt . ' + $_ciphertext = ""; + $_text = $self->_pad($_text); + $_plaintext_len = strlen($_text); + + for ($_i = 0; $_i < $_plaintext_len; $_i+= '.$block_size.') { + $in = substr($_text, $_i, '.$block_size.'); + '.$encrypt_block.' + $_ciphertext.= $in; + } + + return $_ciphertext; + '; + + $decrypt = $init_decrypt . ' + $_plaintext = ""; + $_text = str_pad($_text, strlen($_text) + ('.$block_size.' - strlen($_text) % '.$block_size.') % '.$block_size.', chr(0)); + $_ciphertext_len = strlen($_text); + + for ($_i = 0; $_i < $_ciphertext_len; $_i+= '.$block_size.') { + $in = substr($_text, $_i, '.$block_size.'); + '.$decrypt_block.' + $_plaintext.= $in; + } + + return $self->_unpad($_plaintext); + '; + break; + case CRYPT_MODE_CTR: + $encrypt = $init_encrypt . ' + $_ciphertext = ""; + $_plaintext_len = strlen($_text); + $_xor = $self->encryptIV; + $_buffer = &$self->enbuffer; + + if (strlen($_buffer["encrypted"])) { + for ($_i = 0; $_i < $_plaintext_len; $_i+= '.$block_size.') { + $_block = substr($_text, $_i, '.$block_size.'); + if (strlen($_block) > strlen($_buffer["encrypted"])) { + $in = $self->_generateXor($_xor, '.$block_size.'); + '.$encrypt_block.' + $_buffer["encrypted"].= $in; + } + $_key = $self->_stringShift($_buffer["encrypted"], '.$block_size.'); + $_ciphertext.= $_block ^ $_key; + } + } else { + for ($_i = 0; $_i < $_plaintext_len; $_i+= '.$block_size.') { + $_block = substr($_text, $_i, '.$block_size.'); + $in = $self->_generateXor($_xor, '.$block_size.'); + '.$encrypt_block.' + $_key = $in; + $_ciphertext.= $_block ^ $_key; + } + } + if ($self->continuousBuffer) { + $self->encryptIV = $_xor; + if ($_start = $_plaintext_len % '.$block_size.') { + $_buffer["encrypted"] = substr($_key, $_start) . $_buffer["encrypted"]; + } + } + + return $_ciphertext; + '; + + $decrypt = $init_encrypt . ' + $_plaintext = ""; + $_ciphertext_len = strlen($_text); + $_xor = $self->decryptIV; + $_buffer = &$self->debuffer; + + if (strlen($_buffer["ciphertext"])) { + for ($_i = 0; $_i < $_ciphertext_len; $_i+= '.$block_size.') { + $_block = substr($_text, $_i, '.$block_size.'); + if (strlen($_block) > strlen($_buffer["ciphertext"])) { + $in = $self->_generateXor($_xor, '.$block_size.'); + '.$encrypt_block.' + $_buffer["ciphertext"].= $in; + } + $_key = $self->_stringShift($_buffer["ciphertext"], '.$block_size.'); + $_plaintext.= $_block ^ $_key; + } + } else { + for ($_i = 0; $_i < $_ciphertext_len; $_i+= '.$block_size.') { + $_block = substr($_text, $_i, '.$block_size.'); + $in = $self->_generateXor($_xor, '.$block_size.'); + '.$encrypt_block.' + $_key = $in; + $_plaintext.= $_block ^ $_key; + } + } + if ($self->continuousBuffer) { + $self->decryptIV = $_xor; + if ($_start = $_ciphertext_len % '.$block_size.') { + $_buffer["ciphertext"] = substr($_key, $_start) . $_buffer["ciphertext"]; + } + } + + return $_plaintext; + '; + break; + case CRYPT_MODE_CFB: + $encrypt = $init_encrypt . ' + $_ciphertext = ""; + $_buffer = &$self->enbuffer; + + if ($self->continuousBuffer) { + $_iv = &$self->encryptIV; + $_pos = &$_buffer["pos"]; + } else { + $_iv = $self->encryptIV; + $_pos = 0; + } + $_len = strlen($_text); + $_i = 0; + if ($_pos) { + $_orig_pos = $_pos; + $_max = '.$block_size.' - $_pos; + if ($_len >= $_max) { + $_i = $_max; + $_len-= $_max; + $_pos = 0; + } else { + $_i = $_len; + $_pos+= $_len; + $_len = 0; + } + $_ciphertext = substr($_iv, $_orig_pos) ^ $_text; + $_iv = substr_replace($_iv, $_ciphertext, $_orig_pos, $_i); + } + while ($_len >= '.$block_size.') { + $in = $_iv; + '.$encrypt_block.'; + $_iv = $in ^ substr($_text, $_i, '.$block_size.'); + $_ciphertext.= $_iv; + $_len-= '.$block_size.'; + $_i+= '.$block_size.'; + } + if ($_len) { + $in = $_iv; + '.$encrypt_block.' + $_iv = $in; + $_block = $_iv ^ substr($_text, $_i); + $_iv = substr_replace($_iv, $_block, 0, $_len); + $_ciphertext.= $_block; + $_pos = $_len; + } + return $_ciphertext; + '; + + $decrypt = $init_encrypt . ' + $_plaintext = ""; + $_buffer = &$self->debuffer; + + if ($self->continuousBuffer) { + $_iv = &$self->decryptIV; + $_pos = &$_buffer["pos"]; + } else { + $_iv = $self->decryptIV; + $_pos = 0; + } + $_len = strlen($_text); + $_i = 0; + if ($_pos) { + $_orig_pos = $_pos; + $_max = '.$block_size.' - $_pos; + if ($_len >= $_max) { + $_i = $_max; + $_len-= $_max; + $_pos = 0; + } else { + $_i = $_len; + $_pos+= $_len; + $_len = 0; + } + $_plaintext = substr($_iv, $_orig_pos) ^ $_text; + $_iv = substr_replace($_iv, substr($_text, 0, $_i), $_orig_pos, $_i); + } + while ($_len >= '.$block_size.') { + $in = $_iv; + '.$encrypt_block.' + $_iv = $in; + $cb = substr($_text, $_i, '.$block_size.'); + $_plaintext.= $_iv ^ $cb; + $_iv = $cb; + $_len-= '.$block_size.'; + $_i+= '.$block_size.'; + } + if ($_len) { + $in = $_iv; + '.$encrypt_block.' + $_iv = $in; + $_plaintext.= $_iv ^ substr($_text, $_i); + $_iv = substr_replace($_iv, substr($_text, $_i), 0, $_len); + $_pos = $_len; + } + + return $_plaintext; + '; + break; + case CRYPT_MODE_OFB: + $encrypt = $init_encrypt . ' + $_ciphertext = ""; + $_plaintext_len = strlen($_text); + $_xor = $self->encryptIV; + $_buffer = &$self->enbuffer; + + if (strlen($_buffer["xor"])) { + for ($_i = 0; $_i < $_plaintext_len; $_i+= '.$block_size.') { + $_block = substr($_text, $_i, '.$block_size.'); + if (strlen($_block) > strlen($_buffer["xor"])) { + $in = $_xor; + '.$encrypt_block.' + $_xor = $in; + $_buffer["xor"].= $_xor; + } + $_key = $self->_stringShift($_buffer["xor"], '.$block_size.'); + $_ciphertext.= $_block ^ $_key; + } + } else { + for ($_i = 0; $_i < $_plaintext_len; $_i+= '.$block_size.') { + $in = $_xor; + '.$encrypt_block.' + $_xor = $in; + $_ciphertext.= substr($_text, $_i, '.$block_size.') ^ $_xor; + } + $_key = $_xor; + } + if ($self->continuousBuffer) { + $self->encryptIV = $_xor; + if ($_start = $_plaintext_len % '.$block_size.') { + $_buffer["xor"] = substr($_key, $_start) . $_buffer["xor"]; + } + } + return $_ciphertext; + '; + + $decrypt = $init_encrypt . ' + $_plaintext = ""; + $_ciphertext_len = strlen($_text); + $_xor = $self->decryptIV; + $_buffer = &$self->debuffer; + + if (strlen($_buffer["xor"])) { + for ($_i = 0; $_i < $_ciphertext_len; $_i+= '.$block_size.') { + $_block = substr($_text, $_i, '.$block_size.'); + if (strlen($_block) > strlen($_buffer["xor"])) { + $in = $_xor; + '.$encrypt_block.' + $_xor = $in; + $_buffer["xor"].= $_xor; + } + $_key = $self->_stringShift($_buffer["xor"], '.$block_size.'); + $_plaintext.= $_block ^ $_key; + } + } else { + for ($_i = 0; $_i < $_ciphertext_len; $_i+= '.$block_size.') { + $in = $_xor; + '.$encrypt_block.' + $_xor = $in; + $_plaintext.= substr($_text, $_i, '.$block_size.') ^ $_xor; + } + $_key = $_xor; + } + if ($self->continuousBuffer) { + $self->decryptIV = $_xor; + if ($_start = $_ciphertext_len % '.$block_size.') { + $_buffer["xor"] = substr($_key, $_start) . $_buffer["xor"]; + } + } + return $_plaintext; + '; + break; + case CRYPT_MODE_STREAM: + $encrypt = $init_encrypt . ' + $_ciphertext = ""; + '.$encrypt_block.' + return $_ciphertext; + '; + $decrypt = $init_decrypt . ' + $_plaintext = ""; + '.$decrypt_block.' + return $_plaintext; + '; + break; + // case CRYPT_MODE_CBC: + default: + $encrypt = $init_encrypt . ' + $_ciphertext = ""; + $_text = $self->_pad($_text); + $_plaintext_len = strlen($_text); + + $in = $self->encryptIV; + + for ($_i = 0; $_i < $_plaintext_len; $_i+= '.$block_size.') { + $in = substr($_text, $_i, '.$block_size.') ^ $in; + '.$encrypt_block.' + $_ciphertext.= $in; + } + + if ($self->continuousBuffer) { + $self->encryptIV = $in; + } + + return $_ciphertext; + '; + + $decrypt = $init_decrypt . ' + $_plaintext = ""; + $_text = str_pad($_text, strlen($_text) + ('.$block_size.' - strlen($_text) % '.$block_size.') % '.$block_size.', chr(0)); + $_ciphertext_len = strlen($_text); + + $_iv = $self->decryptIV; + + for ($_i = 0; $_i < $_ciphertext_len; $_i+= '.$block_size.') { + $in = $_block = substr($_text, $_i, '.$block_size.'); + '.$decrypt_block.' + $_plaintext.= $in ^ $_iv; + $_iv = $_block; + } + + if ($self->continuousBuffer) { + $self->decryptIV = $_iv; + } + + return $self->_unpad($_plaintext); + '; + break; + } + + // Create the $inline function and return its name as string. Ready to run! + return create_function('$_action, &$self, $_text', $init_crypt . 'if ($_action == "encrypt") { ' . $encrypt . ' } else { ' . $decrypt . ' }'); + } + + /** + * Holds the lambda_functions table (classwide) + * + * Each name of the lambda function, created from + * _setupInlineCrypt() && _createInlineCryptFunction() + * is stored, classwide (!), here for reusing. + * + * The string-based index of $function is a classwide + * uniqe value representing, at least, the $mode of + * operation (or more... depends of the optimizing level) + * for which $mode the lambda function was created. + * + * @access private + * @return &Array + */ + function &_getLambdaFunctions() + { + static $functions = array(); + return $functions; + } +} diff --git a/lam/lib/3rdParty/phpseclib/Crypt/Blowfish.php b/lam/lib/3rdParty/phpseclib/Crypt/Blowfish.php new file mode 100644 index 00000000..dec28167 --- /dev/null +++ b/lam/lib/3rdParty/phpseclib/Crypt/Blowfish.php @@ -0,0 +1,674 @@ + + * setKey('12345678901234567890123456789012'); + * + * $plaintext = str_repeat('a', 1024); + * + * echo $blowfish->decrypt($blowfish->encrypt($plaintext)); + * ?> + * + * + * LICENSE: Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + * @category Crypt + * @package Crypt_Blowfish + * @author Jim Wigginton + * @author Hans-Juergen Petrich + * @copyright MMVII Jim Wigginton + * @license http://www.opensource.org/licenses/mit-license.html MIT License + * @version 1.0 + * @link http://phpseclib.sourceforge.net + */ + +/** + * Include Crypt_Base + * + * Base cipher class + */ +if (!class_exists('Crypt_Base')) { + include_once 'Base.php'; +} + +/**#@+ + * @access public + * @see Crypt_Blowfish::encrypt() + * @see Crypt_Blowfish::decrypt() + */ +/** + * Encrypt / decrypt using the Counter mode. + * + * Set to -1 since that's what Crypt/Random.php uses to index the CTR mode. + * + * @link http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation#Counter_.28CTR.29 + */ +define('CRYPT_BLOWFISH_MODE_CTR', CRYPT_MODE_CTR); +/** + * Encrypt / decrypt using the Electronic Code Book mode. + * + * @link http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation#Electronic_codebook_.28ECB.29 + */ +define('CRYPT_BLOWFISH_MODE_ECB', CRYPT_MODE_ECB); +/** + * Encrypt / decrypt using the Code Book Chaining mode. + * + * @link http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation#Cipher-block_chaining_.28CBC.29 + */ +define('CRYPT_BLOWFISH_MODE_CBC', CRYPT_MODE_CBC); +/** + * Encrypt / decrypt using the Cipher Feedback mode. + * + * @link http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation#Cipher_feedback_.28CFB.29 + */ +define('CRYPT_BLOWFISH_MODE_CFB', CRYPT_MODE_CFB); +/** + * Encrypt / decrypt using the Cipher Feedback mode. + * + * @link http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation#Output_feedback_.28OFB.29 + */ +define('CRYPT_BLOWFISH_MODE_OFB', CRYPT_MODE_OFB); +/**#@-*/ + +/**#@+ + * @access private + * @see Crypt_Blowfish::Crypt_Blowfish() + */ +/** + * Toggles the internal implementation + */ +define('CRYPT_BLOWFISH_MODE_INTERNAL', CRYPT_MODE_INTERNAL); +/** + * Toggles the mcrypt implementation + */ +define('CRYPT_BLOWFISH_MODE_MCRYPT', CRYPT_MODE_MCRYPT); +/**#@-*/ + +/** + * Pure-PHP implementation of Blowfish. + * + * @package Crypt_Blowfish + * @author Jim Wigginton + * @author Hans-Juergen Petrich + * @version 1.0 + * @access public + */ +class Crypt_Blowfish extends Crypt_Base +{ + /** + * Block Length of the cipher + * + * @see Crypt_Base::block_size + * @var Integer + * @access private + */ + var $block_size = 8; + + /** + * The default password key_size used by setPassword() + * + * @see Crypt_Base::password_key_size + * @see Crypt_Base::setPassword() + * @var Integer + * @access private + */ + var $password_key_size = 56; + + /** + * The namespace used by the cipher for its constants. + * + * @see Crypt_Base::const_namespace + * @var String + * @access private + */ + var $const_namespace = 'BLOWFISH'; + + /** + * The mcrypt specific name of the cipher + * + * @see Crypt_Base::cipher_name_mcrypt + * @var String + * @access private + */ + var $cipher_name_mcrypt = 'blowfish'; + + /** + * Optimizing value while CFB-encrypting + * + * @see Crypt_Base::cfb_init_len + * @var Integer + * @access private + */ + var $cfb_init_len = 500; + + /** + * The fixed subkeys boxes ($sbox0 - $sbox3) with 256 entries each + * + * S-Box 1 + * + * @access private + * @var array + */ + var $sbox0 = array ( + 0xd1310ba6, 0x98dfb5ac, 0x2ffd72db, 0xd01adfb7, 0xb8e1afed, 0x6a267e96, 0xba7c9045, 0xf12c7f99, + 0x24a19947, 0xb3916cf7, 0x0801f2e2, 0x858efc16, 0x636920d8, 0x71574e69, 0xa458fea3, 0xf4933d7e, + 0x0d95748f, 0x728eb658, 0x718bcd58, 0x82154aee, 0x7b54a41d, 0xc25a59b5, 0x9c30d539, 0x2af26013, + 0xc5d1b023, 0x286085f0, 0xca417918, 0xb8db38ef, 0x8e79dcb0, 0x603a180e, 0x6c9e0e8b, 0xb01e8a3e, + 0xd71577c1, 0xbd314b27, 0x78af2fda, 0x55605c60, 0xe65525f3, 0xaa55ab94, 0x57489862, 0x63e81440, + 0x55ca396a, 0x2aab10b6, 0xb4cc5c34, 0x1141e8ce, 0xa15486af, 0x7c72e993, 0xb3ee1411, 0x636fbc2a, + 0x2ba9c55d, 0x741831f6, 0xce5c3e16, 0x9b87931e, 0xafd6ba33, 0x6c24cf5c, 0x7a325381, 0x28958677, + 0x3b8f4898, 0x6b4bb9af, 0xc4bfe81b, 0x66282193, 0x61d809cc, 0xfb21a991, 0x487cac60, 0x5dec8032, + 0xef845d5d, 0xe98575b1, 0xdc262302, 0xeb651b88, 0x23893e81, 0xd396acc5, 0x0f6d6ff3, 0x83f44239, + 0x2e0b4482, 0xa4842004, 0x69c8f04a, 0x9e1f9b5e, 0x21c66842, 0xf6e96c9a, 0x670c9c61, 0xabd388f0, + 0x6a51a0d2, 0xd8542f68, 0x960fa728, 0xab5133a3, 0x6eef0b6c, 0x137a3be4, 0xba3bf050, 0x7efb2a98, + 0xa1f1651d, 0x39af0176, 0x66ca593e, 0x82430e88, 0x8cee8619, 0x456f9fb4, 0x7d84a5c3, 0x3b8b5ebe, + 0xe06f75d8, 0x85c12073, 0x401a449f, 0x56c16aa6, 0x4ed3aa62, 0x363f7706, 0x1bfedf72, 0x429b023d, + 0x37d0d724, 0xd00a1248, 0xdb0fead3, 0x49f1c09b, 0x075372c9, 0x80991b7b, 0x25d479d8, 0xf6e8def7, + 0xe3fe501a, 0xb6794c3b, 0x976ce0bd, 0x04c006ba, 0xc1a94fb6, 0x409f60c4, 0x5e5c9ec2, 0x196a2463, + 0x68fb6faf, 0x3e6c53b5, 0x1339b2eb, 0x3b52ec6f, 0x6dfc511f, 0x9b30952c, 0xcc814544, 0xaf5ebd09, + 0xbee3d004, 0xde334afd, 0x660f2807, 0x192e4bb3, 0xc0cba857, 0x45c8740f, 0xd20b5f39, 0xb9d3fbdb, + 0x5579c0bd, 0x1a60320a, 0xd6a100c6, 0x402c7279, 0x679f25fe, 0xfb1fa3cc, 0x8ea5e9f8, 0xdb3222f8, + 0x3c7516df, 0xfd616b15, 0x2f501ec8, 0xad0552ab, 0x323db5fa, 0xfd238760, 0x53317b48, 0x3e00df82, + 0x9e5c57bb, 0xca6f8ca0, 0x1a87562e, 0xdf1769db, 0xd542a8f6, 0x287effc3, 0xac6732c6, 0x8c4f5573, + 0x695b27b0, 0xbbca58c8, 0xe1ffa35d, 0xb8f011a0, 0x10fa3d98, 0xfd2183b8, 0x4afcb56c, 0x2dd1d35b, + 0x9a53e479, 0xb6f84565, 0xd28e49bc, 0x4bfb9790, 0xe1ddf2da, 0xa4cb7e33, 0x62fb1341, 0xcee4c6e8, + 0xef20cada, 0x36774c01, 0xd07e9efe, 0x2bf11fb4, 0x95dbda4d, 0xae909198, 0xeaad8e71, 0x6b93d5a0, + 0xd08ed1d0, 0xafc725e0, 0x8e3c5b2f, 0x8e7594b7, 0x8ff6e2fb, 0xf2122b64, 0x8888b812, 0x900df01c, + 0x4fad5ea0, 0x688fc31c, 0xd1cff191, 0xb3a8c1ad, 0x2f2f2218, 0xbe0e1777, 0xea752dfe, 0x8b021fa1, + 0xe5a0cc0f, 0xb56f74e8, 0x18acf3d6, 0xce89e299, 0xb4a84fe0, 0xfd13e0b7, 0x7cc43b81, 0xd2ada8d9, + 0x165fa266, 0x80957705, 0x93cc7314, 0x211a1477, 0xe6ad2065, 0x77b5fa86, 0xc75442f5, 0xfb9d35cf, + 0xebcdaf0c, 0x7b3e89a0, 0xd6411bd3, 0xae1e7e49, 0x00250e2d, 0x2071b35e, 0x226800bb, 0x57b8e0af, + 0x2464369b, 0xf009b91e, 0x5563911d, 0x59dfa6aa, 0x78c14389, 0xd95a537f, 0x207d5ba2, 0x02e5b9c5, + 0x83260376, 0x6295cfa9, 0x11c81968, 0x4e734a41, 0xb3472dca, 0x7b14a94a, 0x1b510052, 0x9a532915, + 0xd60f573f, 0xbc9bc6e4, 0x2b60a476, 0x81e67400, 0x08ba6fb5, 0x571be91f, 0xf296ec6b, 0x2a0dd915, + 0xb6636521, 0xe7b9f9b6, 0xff34052e, 0xc5855664, 0x53b02d5d, 0xa99f8fa1, 0x08ba4799, 0x6e85076a + ); + + /** + * S-Box 1 + * + * @access private + * @var array + */ + var $sbox1 = array( + 0x4b7a70e9, 0xb5b32944, 0xdb75092e, 0xc4192623, 0xad6ea6b0, 0x49a7df7d, 0x9cee60b8, 0x8fedb266, + 0xecaa8c71, 0x699a17ff, 0x5664526c, 0xc2b19ee1, 0x193602a5, 0x75094c29, 0xa0591340, 0xe4183a3e, + 0x3f54989a, 0x5b429d65, 0x6b8fe4d6, 0x99f73fd6, 0xa1d29c07, 0xefe830f5, 0x4d2d38e6, 0xf0255dc1, + 0x4cdd2086, 0x8470eb26, 0x6382e9c6, 0x021ecc5e, 0x09686b3f, 0x3ebaefc9, 0x3c971814, 0x6b6a70a1, + 0x687f3584, 0x52a0e286, 0xb79c5305, 0xaa500737, 0x3e07841c, 0x7fdeae5c, 0x8e7d44ec, 0x5716f2b8, + 0xb03ada37, 0xf0500c0d, 0xf01c1f04, 0x0200b3ff, 0xae0cf51a, 0x3cb574b2, 0x25837a58, 0xdc0921bd, + 0xd19113f9, 0x7ca92ff6, 0x94324773, 0x22f54701, 0x3ae5e581, 0x37c2dadc, 0xc8b57634, 0x9af3dda7, + 0xa9446146, 0x0fd0030e, 0xecc8c73e, 0xa4751e41, 0xe238cd99, 0x3bea0e2f, 0x3280bba1, 0x183eb331, + 0x4e548b38, 0x4f6db908, 0x6f420d03, 0xf60a04bf, 0x2cb81290, 0x24977c79, 0x5679b072, 0xbcaf89af, + 0xde9a771f, 0xd9930810, 0xb38bae12, 0xdccf3f2e, 0x5512721f, 0x2e6b7124, 0x501adde6, 0x9f84cd87, + 0x7a584718, 0x7408da17, 0xbc9f9abc, 0xe94b7d8c, 0xec7aec3a, 0xdb851dfa, 0x63094366, 0xc464c3d2, + 0xef1c1847, 0x3215d908, 0xdd433b37, 0x24c2ba16, 0x12a14d43, 0x2a65c451, 0x50940002, 0x133ae4dd, + 0x71dff89e, 0x10314e55, 0x81ac77d6, 0x5f11199b, 0x043556f1, 0xd7a3c76b, 0x3c11183b, 0x5924a509, + 0xf28fe6ed, 0x97f1fbfa, 0x9ebabf2c, 0x1e153c6e, 0x86e34570, 0xeae96fb1, 0x860e5e0a, 0x5a3e2ab3, + 0x771fe71c, 0x4e3d06fa, 0x2965dcb9, 0x99e71d0f, 0x803e89d6, 0x5266c825, 0x2e4cc978, 0x9c10b36a, + 0xc6150eba, 0x94e2ea78, 0xa5fc3c53, 0x1e0a2df4, 0xf2f74ea7, 0x361d2b3d, 0x1939260f, 0x19c27960, + 0x5223a708, 0xf71312b6, 0xebadfe6e, 0xeac31f66, 0xe3bc4595, 0xa67bc883, 0xb17f37d1, 0x018cff28, + 0xc332ddef, 0xbe6c5aa5, 0x65582185, 0x68ab9802, 0xeecea50f, 0xdb2f953b, 0x2aef7dad, 0x5b6e2f84, + 0x1521b628, 0x29076170, 0xecdd4775, 0x619f1510, 0x13cca830, 0xeb61bd96, 0x0334fe1e, 0xaa0363cf, + 0xb5735c90, 0x4c70a239, 0xd59e9e0b, 0xcbaade14, 0xeecc86bc, 0x60622ca7, 0x9cab5cab, 0xb2f3846e, + 0x648b1eaf, 0x19bdf0ca, 0xa02369b9, 0x655abb50, 0x40685a32, 0x3c2ab4b3, 0x319ee9d5, 0xc021b8f7, + 0x9b540b19, 0x875fa099, 0x95f7997e, 0x623d7da8, 0xf837889a, 0x97e32d77, 0x11ed935f, 0x16681281, + 0x0e358829, 0xc7e61fd6, 0x96dedfa1, 0x7858ba99, 0x57f584a5, 0x1b227263, 0x9b83c3ff, 0x1ac24696, + 0xcdb30aeb, 0x532e3054, 0x8fd948e4, 0x6dbc3128, 0x58ebf2ef, 0x34c6ffea, 0xfe28ed61, 0xee7c3c73, + 0x5d4a14d9, 0xe864b7e3, 0x42105d14, 0x203e13e0, 0x45eee2b6, 0xa3aaabea, 0xdb6c4f15, 0xfacb4fd0, + 0xc742f442, 0xef6abbb5, 0x654f3b1d, 0x41cd2105, 0xd81e799e, 0x86854dc7, 0xe44b476a, 0x3d816250, + 0xcf62a1f2, 0x5b8d2646, 0xfc8883a0, 0xc1c7b6a3, 0x7f1524c3, 0x69cb7492, 0x47848a0b, 0x5692b285, + 0x095bbf00, 0xad19489d, 0x1462b174, 0x23820e00, 0x58428d2a, 0x0c55f5ea, 0x1dadf43e, 0x233f7061, + 0x3372f092, 0x8d937e41, 0xd65fecf1, 0x6c223bdb, 0x7cde3759, 0xcbee7460, 0x4085f2a7, 0xce77326e, + 0xa6078084, 0x19f8509e, 0xe8efd855, 0x61d99735, 0xa969a7aa, 0xc50c06c2, 0x5a04abfc, 0x800bcadc, + 0x9e447a2e, 0xc3453484, 0xfdd56705, 0x0e1e9ec9, 0xdb73dbd3, 0x105588cd, 0x675fda79, 0xe3674340, + 0xc5c43465, 0x713e38d8, 0x3d28f89e, 0xf16dff20, 0x153e21e7, 0x8fb03d4a, 0xe6e39f2b, 0xdb83adf7 + ); + + /** + * S-Box 2 + * + * @access private + * @var array + */ + var $sbox2 = array( + 0xe93d5a68, 0x948140f7, 0xf64c261c, 0x94692934, 0x411520f7, 0x7602d4f7, 0xbcf46b2e, 0xd4a20068, + 0xd4082471, 0x3320f46a, 0x43b7d4b7, 0x500061af, 0x1e39f62e, 0x97244546, 0x14214f74, 0xbf8b8840, + 0x4d95fc1d, 0x96b591af, 0x70f4ddd3, 0x66a02f45, 0xbfbc09ec, 0x03bd9785, 0x7fac6dd0, 0x31cb8504, + 0x96eb27b3, 0x55fd3941, 0xda2547e6, 0xabca0a9a, 0x28507825, 0x530429f4, 0x0a2c86da, 0xe9b66dfb, + 0x68dc1462, 0xd7486900, 0x680ec0a4, 0x27a18dee, 0x4f3ffea2, 0xe887ad8c, 0xb58ce006, 0x7af4d6b6, + 0xaace1e7c, 0xd3375fec, 0xce78a399, 0x406b2a42, 0x20fe9e35, 0xd9f385b9, 0xee39d7ab, 0x3b124e8b, + 0x1dc9faf7, 0x4b6d1856, 0x26a36631, 0xeae397b2, 0x3a6efa74, 0xdd5b4332, 0x6841e7f7, 0xca7820fb, + 0xfb0af54e, 0xd8feb397, 0x454056ac, 0xba489527, 0x55533a3a, 0x20838d87, 0xfe6ba9b7, 0xd096954b, + 0x55a867bc, 0xa1159a58, 0xcca92963, 0x99e1db33, 0xa62a4a56, 0x3f3125f9, 0x5ef47e1c, 0x9029317c, + 0xfdf8e802, 0x04272f70, 0x80bb155c, 0x05282ce3, 0x95c11548, 0xe4c66d22, 0x48c1133f, 0xc70f86dc, + 0x07f9c9ee, 0x41041f0f, 0x404779a4, 0x5d886e17, 0x325f51eb, 0xd59bc0d1, 0xf2bcc18f, 0x41113564, + 0x257b7834, 0x602a9c60, 0xdff8e8a3, 0x1f636c1b, 0x0e12b4c2, 0x02e1329e, 0xaf664fd1, 0xcad18115, + 0x6b2395e0, 0x333e92e1, 0x3b240b62, 0xeebeb922, 0x85b2a20e, 0xe6ba0d99, 0xde720c8c, 0x2da2f728, + 0xd0127845, 0x95b794fd, 0x647d0862, 0xe7ccf5f0, 0x5449a36f, 0x877d48fa, 0xc39dfd27, 0xf33e8d1e, + 0x0a476341, 0x992eff74, 0x3a6f6eab, 0xf4f8fd37, 0xa812dc60, 0xa1ebddf8, 0x991be14c, 0xdb6e6b0d, + 0xc67b5510, 0x6d672c37, 0x2765d43b, 0xdcd0e804, 0xf1290dc7, 0xcc00ffa3, 0xb5390f92, 0x690fed0b, + 0x667b9ffb, 0xcedb7d9c, 0xa091cf0b, 0xd9155ea3, 0xbb132f88, 0x515bad24, 0x7b9479bf, 0x763bd6eb, + 0x37392eb3, 0xcc115979, 0x8026e297, 0xf42e312d, 0x6842ada7, 0xc66a2b3b, 0x12754ccc, 0x782ef11c, + 0x6a124237, 0xb79251e7, 0x06a1bbe6, 0x4bfb6350, 0x1a6b1018, 0x11caedfa, 0x3d25bdd8, 0xe2e1c3c9, + 0x44421659, 0x0a121386, 0xd90cec6e, 0xd5abea2a, 0x64af674e, 0xda86a85f, 0xbebfe988, 0x64e4c3fe, + 0x9dbc8057, 0xf0f7c086, 0x60787bf8, 0x6003604d, 0xd1fd8346, 0xf6381fb0, 0x7745ae04, 0xd736fccc, + 0x83426b33, 0xf01eab71, 0xb0804187, 0x3c005e5f, 0x77a057be, 0xbde8ae24, 0x55464299, 0xbf582e61, + 0x4e58f48f, 0xf2ddfda2, 0xf474ef38, 0x8789bdc2, 0x5366f9c3, 0xc8b38e74, 0xb475f255, 0x46fcd9b9, + 0x7aeb2661, 0x8b1ddf84, 0x846a0e79, 0x915f95e2, 0x466e598e, 0x20b45770, 0x8cd55591, 0xc902de4c, + 0xb90bace1, 0xbb8205d0, 0x11a86248, 0x7574a99e, 0xb77f19b6, 0xe0a9dc09, 0x662d09a1, 0xc4324633, + 0xe85a1f02, 0x09f0be8c, 0x4a99a025, 0x1d6efe10, 0x1ab93d1d, 0x0ba5a4df, 0xa186f20f, 0x2868f169, + 0xdcb7da83, 0x573906fe, 0xa1e2ce9b, 0x4fcd7f52, 0x50115e01, 0xa70683fa, 0xa002b5c4, 0x0de6d027, + 0x9af88c27, 0x773f8641, 0xc3604c06, 0x61a806b5, 0xf0177a28, 0xc0f586e0, 0x006058aa, 0x30dc7d62, + 0x11e69ed7, 0x2338ea63, 0x53c2dd94, 0xc2c21634, 0xbbcbee56, 0x90bcb6de, 0xebfc7da1, 0xce591d76, + 0x6f05e409, 0x4b7c0188, 0x39720a3d, 0x7c927c24, 0x86e3725f, 0x724d9db9, 0x1ac15bb4, 0xd39eb8fc, + 0xed545578, 0x08fca5b5, 0xd83d7cd3, 0x4dad0fc4, 0x1e50ef5e, 0xb161e6f8, 0xa28514d9, 0x6c51133c, + 0x6fd5c7e7, 0x56e14ec4, 0x362abfce, 0xddc6c837, 0xd79a3234, 0x92638212, 0x670efa8e, 0x406000e0 + ); + + /** + * S-Box 3 + * + * @access private + * @var array + */ + var $sbox3 = array( + 0x3a39ce37, 0xd3faf5cf, 0xabc27737, 0x5ac52d1b, 0x5cb0679e, 0x4fa33742, 0xd3822740, 0x99bc9bbe, + 0xd5118e9d, 0xbf0f7315, 0xd62d1c7e, 0xc700c47b, 0xb78c1b6b, 0x21a19045, 0xb26eb1be, 0x6a366eb4, + 0x5748ab2f, 0xbc946e79, 0xc6a376d2, 0x6549c2c8, 0x530ff8ee, 0x468dde7d, 0xd5730a1d, 0x4cd04dc6, + 0x2939bbdb, 0xa9ba4650, 0xac9526e8, 0xbe5ee304, 0xa1fad5f0, 0x6a2d519a, 0x63ef8ce2, 0x9a86ee22, + 0xc089c2b8, 0x43242ef6, 0xa51e03aa, 0x9cf2d0a4, 0x83c061ba, 0x9be96a4d, 0x8fe51550, 0xba645bd6, + 0x2826a2f9, 0xa73a3ae1, 0x4ba99586, 0xef5562e9, 0xc72fefd3, 0xf752f7da, 0x3f046f69, 0x77fa0a59, + 0x80e4a915, 0x87b08601, 0x9b09e6ad, 0x3b3ee593, 0xe990fd5a, 0x9e34d797, 0x2cf0b7d9, 0x022b8b51, + 0x96d5ac3a, 0x017da67d, 0xd1cf3ed6, 0x7c7d2d28, 0x1f9f25cf, 0xadf2b89b, 0x5ad6b472, 0x5a88f54c, + 0xe029ac71, 0xe019a5e6, 0x47b0acfd, 0xed93fa9b, 0xe8d3c48d, 0x283b57cc, 0xf8d56629, 0x79132e28, + 0x785f0191, 0xed756055, 0xf7960e44, 0xe3d35e8c, 0x15056dd4, 0x88f46dba, 0x03a16125, 0x0564f0bd, + 0xc3eb9e15, 0x3c9057a2, 0x97271aec, 0xa93a072a, 0x1b3f6d9b, 0x1e6321f5, 0xf59c66fb, 0x26dcf319, + 0x7533d928, 0xb155fdf5, 0x03563482, 0x8aba3cbb, 0x28517711, 0xc20ad9f8, 0xabcc5167, 0xccad925f, + 0x4de81751, 0x3830dc8e, 0x379d5862, 0x9320f991, 0xea7a90c2, 0xfb3e7bce, 0x5121ce64, 0x774fbe32, + 0xa8b6e37e, 0xc3293d46, 0x48de5369, 0x6413e680, 0xa2ae0810, 0xdd6db224, 0x69852dfd, 0x09072166, + 0xb39a460a, 0x6445c0dd, 0x586cdecf, 0x1c20c8ae, 0x5bbef7dd, 0x1b588d40, 0xccd2017f, 0x6bb4e3bb, + 0xdda26a7e, 0x3a59ff45, 0x3e350a44, 0xbcb4cdd5, 0x72eacea8, 0xfa6484bb, 0x8d6612ae, 0xbf3c6f47, + 0xd29be463, 0x542f5d9e, 0xaec2771b, 0xf64e6370, 0x740e0d8d, 0xe75b1357, 0xf8721671, 0xaf537d5d, + 0x4040cb08, 0x4eb4e2cc, 0x34d2466a, 0x0115af84, 0xe1b00428, 0x95983a1d, 0x06b89fb4, 0xce6ea048, + 0x6f3f3b82, 0x3520ab82, 0x011a1d4b, 0x277227f8, 0x611560b1, 0xe7933fdc, 0xbb3a792b, 0x344525bd, + 0xa08839e1, 0x51ce794b, 0x2f32c9b7, 0xa01fbac9, 0xe01cc87e, 0xbcc7d1f6, 0xcf0111c3, 0xa1e8aac7, + 0x1a908749, 0xd44fbd9a, 0xd0dadecb, 0xd50ada38, 0x0339c32a, 0xc6913667, 0x8df9317c, 0xe0b12b4f, + 0xf79e59b7, 0x43f5bb3a, 0xf2d519ff, 0x27d9459c, 0xbf97222c, 0x15e6fc2a, 0x0f91fc71, 0x9b941525, + 0xfae59361, 0xceb69ceb, 0xc2a86459, 0x12baa8d1, 0xb6c1075e, 0xe3056a0c, 0x10d25065, 0xcb03a442, + 0xe0ec6e0e, 0x1698db3b, 0x4c98a0be, 0x3278e964, 0x9f1f9532, 0xe0d392df, 0xd3a0342b, 0x8971f21e, + 0x1b0a7441, 0x4ba3348c, 0xc5be7120, 0xc37632d8, 0xdf359f8d, 0x9b992f2e, 0xe60b6f47, 0x0fe3f11d, + 0xe54cda54, 0x1edad891, 0xce6279cf, 0xcd3e7e6f, 0x1618b166, 0xfd2c1d05, 0x848fd2c5, 0xf6fb2299, + 0xf523f357, 0xa6327623, 0x93a83531, 0x56cccd02, 0xacf08162, 0x5a75ebb5, 0x6e163697, 0x88d273cc, + 0xde966292, 0x81b949d0, 0x4c50901b, 0x71c65614, 0xe6c6c7bd, 0x327a140a, 0x45e1d006, 0xc3f27b9a, + 0xc9aa53fd, 0x62a80f00, 0xbb25bfe2, 0x35bdd2f6, 0x71126905, 0xb2040222, 0xb6cbcf7c, 0xcd769c2b, + 0x53113ec0, 0x1640e3d3, 0x38abbd60, 0x2547adf0, 0xba38209c, 0xf746ce76, 0x77afa1c5, 0x20756060, + 0x85cbfe4e, 0x8ae88dd8, 0x7aaaf9b0, 0x4cf9aa7e, 0x1948c25c, 0x02fb8a8c, 0x01c36ae4, 0xd6ebe1f9, + 0x90d4f869, 0xa65cdea0, 0x3f09252d, 0xc208e69f, 0xb74e6132, 0xce77e25b, 0x578fdfe3, 0x3ac372e6 + ); + + /** + * P-Array consists of 18 32-bit subkeys + * + * @var array $parray + * @access private + */ + var $parray = array( + 0x243f6a88, 0x85a308d3, 0x13198a2e, 0x03707344, 0xa4093822, 0x299f31d0, + 0x082efa98, 0xec4e6c89, 0x452821e6, 0x38d01377, 0xbe5466cf, 0x34e90c6c, + 0xc0ac29b7, 0xc97c50dd, 0x3f84d5b5, 0xb5470917, 0x9216d5d9, 0x8979fb1b + ); + + /** + * The BCTX-working Array + * + * Holds the expanded key [p] and the key-depended s-boxes [sb] + * + * @var array $bctx + * @access private + */ + var $bctx; + + /** + * Holds the last used key + * + * @var Array + * @access private + */ + var $kl; + + /** + * Default Constructor. + * + * Determines whether or not the mcrypt extension should be used. + * + * $mode could be: + * + * - CRYPT_BLOWFISH_MODE_ECB + * + * - CRYPT_BLOWFISH_MODE_CBC + * + * - CRYPT_BLOWFISH_MODE_CTR + * + * - CRYPT_BLOWFISH_MODE_CFB + * + * - CRYPT_BLOWFISH_MODE_OFB + * + * If not explictly set, CRYPT_BLOWFISH_MODE_CBC will be used. + * + * @see Crypt_Base::Crypt_Base() + * @param optional Integer $mode + * @access public + */ + function Crypt_Blowfish($mode = CRYPT_BLOWFISH_MODE_CBC) + { + parent::Crypt_Base($mode); + } + + /** + * Sets the key. + * + * Keys can be of any length. Blowfish, itself, requires the use of a key between 32 and max. 448-bits long. + * If the key is less than 32-bits we NOT fill the key to 32bit but let the key as it is to be compatible + * with mcrypt because mcrypt act this way with blowfish key's < 32 bits. + * + * If the key is more than 448-bits, we trim the excess bits. + * + * If the key is not explicitly set, or empty, it'll be assumed a 128 bits key to be all null bytes. + * + * @access public + * @see Crypt_Base::setKey() + * @param String $key + */ + function setKey($key) + { + $keylength = strlen($key); + + if (!$keylength) { + $key = "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"; + } elseif ($keylength > 56) { + $key = substr($key, 0, 56); + } + + parent::setKey($key); + } + + /** + * Setup the key (expansion) + * + * @see Crypt_Base::_setupKey() + * @access private + */ + function _setupKey() + { + if (isset($this->kl['key']) && $this->key === $this->kl['key']) { + // already expanded + return; + } + $this->kl = array('key' => $this->key); + + /* key-expanding p[] and S-Box building sb[] */ + $this->bctx = array( + 'p' => array(), + 'sb' => array( + $this->sbox0, + $this->sbox1, + $this->sbox2, + $this->sbox3 + ) + ); + + // unpack binary string in unsigned chars + $key = array_values(unpack('C*', $this->key)); + $keyl = count($key); + for ($j = 0, $i = 0; $i < 18; ++$i) { + // xor P1 with the first 32-bits of the key, xor P2 with the second 32-bits ... + for ($data = 0, $k = 0; $k < 4; ++$k) { + $data = ($data << 8) | $key[$j]; + if (++$j >= $keyl) { + $j = 0; + } + } + $this->bctx['p'][] = $this->parray[$i] ^ $data; + } + + // encrypt the zero-string, replace P1 and P2 with the encrypted data, + // encrypt P3 and P4 with the new P1 and P2, do it with all P-array and subkeys + $data = "\0\0\0\0\0\0\0\0"; + for ($i = 0; $i < 18; $i += 2) { + list($l, $r) = array_values(unpack('N*', $data = $this->_encryptBlock($data))); + $this->bctx['p'][$i ] = $l; + $this->bctx['p'][$i + 1] = $r; + } + for ($i = 0; $i < 4; ++$i) { + for ($j = 0; $j < 256; $j += 2) { + list($l, $r) = array_values(unpack('N*', $data = $this->_encryptBlock($data))); + $this->bctx['sb'][$i][$j ] = $l; + $this->bctx['sb'][$i][$j + 1] = $r; + } + } + } + + /** + * Encrypts a block + * + * @access private + * @param String $in + * @return String + */ + function _encryptBlock($in) + { + $p = $this->bctx["p"]; + // extract($this->bctx["sb"], EXTR_PREFIX_ALL, "sb"); // slower + $sb_0 = $this->bctx["sb"][0]; + $sb_1 = $this->bctx["sb"][1]; + $sb_2 = $this->bctx["sb"][2]; + $sb_3 = $this->bctx["sb"][3]; + + $in = unpack("N*", $in); + $l = $in[1]; + $r = $in[2]; + + for ($i = 0; $i < 16; $i+= 2) { + $l^= $p[$i]; + $r^= ($sb_0[$l >> 24 & 0xff] + + $sb_1[$l >> 16 & 0xff] ^ + $sb_2[$l >> 8 & 0xff]) + + $sb_3[$l & 0xff]; + + $r^= $p[$i + 1]; + $l^= ($sb_0[$r >> 24 & 0xff] + + $sb_1[$r >> 16 & 0xff] ^ + $sb_2[$r >> 8 & 0xff]) + + $sb_3[$r & 0xff]; + } + return pack("N*", $r ^ $p[17], $l ^ $p[16]); + } + + /** + * Decrypts a block + * + * @access private + * @param String $in + * @return String + */ + function _decryptBlock($in) + { + $p = $this->bctx["p"]; + $sb_0 = $this->bctx["sb"][0]; + $sb_1 = $this->bctx["sb"][1]; + $sb_2 = $this->bctx["sb"][2]; + $sb_3 = $this->bctx["sb"][3]; + + $in = unpack("N*", $in); + $l = $in[1]; + $r = $in[2]; + + for ($i = 17; $i > 2; $i-= 2) { + $l^= $p[$i]; + $r^= ($sb_0[$l >> 24 & 0xff] + + $sb_1[$l >> 16 & 0xff] ^ + $sb_2[$l >> 8 & 0xff]) + + $sb_3[$l & 0xff]; + + $r^= $p[$i - 1]; + $l^= ($sb_0[$r >> 24 & 0xff] + + $sb_1[$r >> 16 & 0xff] ^ + $sb_2[$r >> 8 & 0xff]) + + $sb_3[$r & 0xff]; + } + + return pack("N*", $r ^ $p[0], $l ^ $p[1]); + } + + /** + * Setup the performance-optimized function for de/encrypt() + * + * @see Crypt_Base::_setupInlineCrypt() + * @access private + */ + function _setupInlineCrypt() + { + $lambda_functions =& Crypt_Blowfish::_getLambdaFunctions(); + + // We create max. 10 hi-optimized code for memory reason. Means: For each $key one ultra fast inline-crypt function. + // After that, we'll still create very fast optimized code but not the hi-ultimative code, for each $mode one. + $gen_hi_opt_code = (bool)( count($lambda_functions) < 10); + + switch (true) { + case $gen_hi_opt_code: + $code_hash = md5(str_pad("Crypt_Blowfish, {$this->mode}, ", 32, "\0") . $this->key); + break; + default: + $code_hash = "Crypt_Blowfish, {$this->mode}"; + } + + if (!isset($lambda_functions[$code_hash])) { + switch (true) { + case $gen_hi_opt_code: + $p = $this->bctx['p']; + $init_crypt = ' + static $sb_0, $sb_1, $sb_2, $sb_3; + if (!$sb_0) { + $sb_0 = $self->bctx["sb"][0]; + $sb_1 = $self->bctx["sb"][1]; + $sb_2 = $self->bctx["sb"][2]; + $sb_3 = $self->bctx["sb"][3]; + } + '; + break; + default: + $p = array(); + for ($i = 0; $i < 18; ++$i) { + $p[] = '$p_' . $i; + } + $init_crypt = ' + list($sb_0, $sb_1, $sb_2, $sb_3) = $self->bctx["sb"]; + list(' . implode(',', $p) . ') = $self->bctx["p"]; + + '; + } + + // Generating encrypt code: + $encrypt_block = ' + $in = unpack("N*", $in); + $l = $in[1]; + $r = $in[2]; + '; + for ($i = 0; $i < 16; $i+= 2) { + $encrypt_block.= ' + $l^= ' . $p[$i] . '; + $r^= ($sb_0[$l >> 24 & 0xff] + + $sb_1[$l >> 16 & 0xff] ^ + $sb_2[$l >> 8 & 0xff]) + + $sb_3[$l & 0xff]; + + $r^= ' . $p[$i + 1] . '; + $l^= ($sb_0[$r >> 24 & 0xff] + + $sb_1[$r >> 16 & 0xff] ^ + $sb_2[$r >> 8 & 0xff]) + + $sb_3[$r & 0xff]; + '; + } + $encrypt_block.= ' + $in = pack("N*", + $r ^ ' . $p[17] . ', + $l ^ ' . $p[16] . ' + ); + '; + + // Generating decrypt code: + $decrypt_block = ' + $in = unpack("N*", $in); + $l = $in[1]; + $r = $in[2]; + '; + + for ($i = 17; $i > 2; $i-= 2) { + $decrypt_block.= ' + $l^= ' . $p[$i] . '; + $r^= ($sb_0[$l >> 24 & 0xff] + + $sb_1[$l >> 16 & 0xff] ^ + $sb_2[$l >> 8 & 0xff]) + + $sb_3[$l & 0xff]; + + $r^= ' . $p[$i - 1] . '; + $l^= ($sb_0[$r >> 24 & 0xff] + + $sb_1[$r >> 16 & 0xff] ^ + $sb_2[$r >> 8 & 0xff]) + + $sb_3[$r & 0xff]; + '; + } + + $decrypt_block.= ' + $in = pack("N*", + $r ^ ' . $p[0] . ', + $l ^ ' . $p[1] . ' + ); + '; + + $lambda_functions[$code_hash] = $this->_createInlineCryptFunction( + array( + 'init_crypt' => $init_crypt, + 'init_encrypt' => '', + 'init_decrypt' => '', + 'encrypt_block' => $encrypt_block, + 'decrypt_block' => $decrypt_block + ) + ); + } + $this->inline_crypt = $lambda_functions[$code_hash]; + } +} diff --git a/lam/lib/3rdParty/phpseclib/Crypt/DES.php b/lam/lib/3rdParty/phpseclib/Crypt/DES.php index a9f083f7..fcbf0199 100644 --- a/lam/lib/3rdParty/phpseclib/Crypt/DES.php +++ b/lam/lib/3rdParty/phpseclib/Crypt/DES.php @@ -1,5 +1,4 @@ - * @copyright MMVII Jim Wigginton - * @license http://www.opensource.org/licenses/mit-license.html MIT License - * @version $Id$ - * @link http://phpseclib.sourceforge.net + * @category Crypt + * @package Crypt_DES + * @author Jim Wigginton + * @copyright MMVII Jim Wigginton + * @license http://www.opensource.org/licenses/mit-license.html MIT License + * @link http://phpseclib.sourceforge.net */ +/** + * Include Crypt_Base + * + * Base cipher class + */ +if (!class_exists('Crypt_Base')) { + include_once 'Base.php'; +} + /**#@+ * @access private - * @see Crypt_DES::_prepareKey() + * @see Crypt_DES::_setupKey() * @see Crypt_DES::_processBlock() */ /** - * Contains array_reverse($keys[CRYPT_DES_DECRYPT]) + * Contains $keys[CRYPT_DES_ENCRYPT] */ define('CRYPT_DES_ENCRYPT', 0); /** - * Contains array_reverse($keys[CRYPT_DES_ENCRYPT]) + * Contains $keys[CRYPT_DES_DECRYPT] */ define('CRYPT_DES_DECRYPT', 1); /**#@-*/ @@ -87,31 +94,31 @@ define('CRYPT_DES_DECRYPT', 1); * * @link http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation#Counter_.28CTR.29 */ -define('CRYPT_DES_MODE_CTR', -1); +define('CRYPT_DES_MODE_CTR', CRYPT_MODE_CTR); /** * Encrypt / decrypt using the Electronic Code Book mode. * * @link http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation#Electronic_codebook_.28ECB.29 */ -define('CRYPT_DES_MODE_ECB', 1); +define('CRYPT_DES_MODE_ECB', CRYPT_MODE_ECB); /** * Encrypt / decrypt using the Code Book Chaining mode. * * @link http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation#Cipher-block_chaining_.28CBC.29 */ -define('CRYPT_DES_MODE_CBC', 2); +define('CRYPT_DES_MODE_CBC', CRYPT_MODE_CBC); /** * Encrypt / decrypt using the Cipher Feedback mode. * * @link http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation#Cipher_feedback_.28CFB.29 */ -define('CRYPT_DES_MODE_CFB', 3); +define('CRYPT_DES_MODE_CFB', CRYPT_MODE_CFB); /** * Encrypt / decrypt using the Cipher Feedback mode. * * @link http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation#Output_feedback_.28OFB.29 */ -define('CRYPT_DES_MODE_OFB', 4); +define('CRYPT_DES_MODE_OFB', CRYPT_MODE_OFB); /**#@-*/ /**#@+ @@ -121,232 +128,566 @@ define('CRYPT_DES_MODE_OFB', 4); /** * Toggles the internal implementation */ -define('CRYPT_DES_MODE_INTERNAL', 1); +define('CRYPT_DES_MODE_INTERNAL', CRYPT_MODE_INTERNAL); /** * Toggles the mcrypt implementation */ -define('CRYPT_DES_MODE_MCRYPT', 2); +define('CRYPT_DES_MODE_MCRYPT', CRYPT_MODE_MCRYPT); /**#@-*/ /** * Pure-PHP implementation of DES. * + * @package Crypt_DES * @author Jim Wigginton * @version 0.1.0 * @access public - * @package Crypt_DES */ -class Crypt_DES { +class Crypt_DES extends Crypt_Base +{ /** - * The Key Schedule + * Block Length of the cipher * - * @see Crypt_DES::setKey() - * @var Array - * @access private - */ - var $keys = "\0\0\0\0\0\0\0\0"; - - /** - * The Encryption Mode - * - * @see Crypt_DES::Crypt_DES() + * @see Crypt_Base::block_size * @var Integer * @access private */ - var $mode; + var $block_size = 8; /** - * Continuous Buffer status + * The Key * - * @see Crypt_DES::enableContinuousBuffer() - * @var Boolean - * @access private - */ - var $continuousBuffer = false; - - /** - * Padding status - * - * @see Crypt_DES::enablePadding() - * @var Boolean - * @access private - */ - var $padding = true; - - /** - * The Initialization Vector - * - * @see Crypt_DES::setIV() + * @see Crypt_Base::key + * @see setKey() * @var String * @access private */ - var $iv = "\0\0\0\0\0\0\0\0"; + var $key = "\0\0\0\0\0\0\0\0"; /** - * A "sliding" Initialization Vector + * The default password key_size used by setPassword() * - * @see Crypt_DES::enableContinuousBuffer() + * @see Crypt_Base::password_key_size + * @see Crypt_Base::setPassword() + * @var Integer + * @access private + */ + var $password_key_size = 8; + + /** + * The namespace used by the cipher for its constants. + * + * @see Crypt_Base::const_namespace * @var String * @access private */ - var $encryptIV = "\0\0\0\0\0\0\0\0"; + var $const_namespace = 'DES'; /** - * A "sliding" Initialization Vector + * The mcrypt specific name of the cipher * - * @see Crypt_DES::enableContinuousBuffer() + * @see Crypt_Base::cipher_name_mcrypt * @var String * @access private */ - var $decryptIV = "\0\0\0\0\0\0\0\0"; + var $cipher_name_mcrypt = 'des'; /** - * mcrypt resource for encryption + * Optimizing value while CFB-encrypting * - * The mcrypt resource can be recreated every time something needs to be created or it can be created just once. - * Since mcrypt operates in continuous mode, by default, it'll need to be recreated when in non-continuous mode. - * - * @see Crypt_DES::encrypt() - * @var String + * @see Crypt_Base::cfb_init_len + * @var Integer * @access private */ - var $enmcrypt; + var $cfb_init_len = 500; /** - * mcrypt resource for decryption + * Switch for DES/3DES encryption * - * The mcrypt resource can be recreated every time something needs to be created or it can be created just once. - * Since mcrypt operates in continuous mode, by default, it'll need to be recreated when in non-continuous mode. + * Used only if $engine == CRYPT_DES_MODE_INTERNAL * - * @see Crypt_DES::decrypt() - * @var String + * @see Crypt_DES::_setupKey() + * @see Crypt_DES::_processBlock() + * @var Integer * @access private */ - var $demcrypt; + var $des_rounds = 1; /** - * Does the enmcrypt resource need to be (re)initialized? + * max possible size of $key * * @see Crypt_DES::setKey() - * @see Crypt_DES::setIV() - * @var Boolean - * @access private - */ - var $enchanged = true; - - /** - * Does the demcrypt resource need to be (re)initialized? - * - * @see Crypt_DES::setKey() - * @see Crypt_DES::setIV() - * @var Boolean - * @access private - */ - var $dechanged = true; - - /** - * Is the mode one that is paddable? - * - * @see Crypt_DES::Crypt_DES() - * @var Boolean - * @access private - */ - var $paddable = false; - - /** - * Encryption buffer for CTR, OFB and CFB modes - * - * @see Crypt_DES::encrypt() * @var String * @access private */ - var $enbuffer = ''; + var $key_size_max = 8; /** - * Decryption buffer for CTR, OFB and CFB modes + * The Key Schedule * - * @see Crypt_DES::decrypt() - * @var String + * @see Crypt_DES::_setupKey() + * @var Array * @access private */ - var $debuffer = ''; + var $keys; /** - * mcrypt resource for CFB mode + * Shuffle table. * - * @see Crypt_DES::encrypt() - * @see Crypt_DES::decrypt() - * @var String + * For each byte value index, the entry holds an 8-byte string + * with each byte containing all bits in the same state as the + * corresponding bit in the index value. + * + * @see Crypt_DES::_processBlock() + * @see Crypt_DES::_setupKey() + * @var Array * @access private */ - var $ecb; + var $shuffle = array( + "\x00\x00\x00\x00\x00\x00\x00\x00", "\x00\x00\x00\x00\x00\x00\x00\xFF", + "\x00\x00\x00\x00\x00\x00\xFF\x00", "\x00\x00\x00\x00\x00\x00\xFF\xFF", + "\x00\x00\x00\x00\x00\xFF\x00\x00", "\x00\x00\x00\x00\x00\xFF\x00\xFF", + "\x00\x00\x00\x00\x00\xFF\xFF\x00", "\x00\x00\x00\x00\x00\xFF\xFF\xFF", + "\x00\x00\x00\x00\xFF\x00\x00\x00", "\x00\x00\x00\x00\xFF\x00\x00\xFF", + "\x00\x00\x00\x00\xFF\x00\xFF\x00", "\x00\x00\x00\x00\xFF\x00\xFF\xFF", + "\x00\x00\x00\x00\xFF\xFF\x00\x00", "\x00\x00\x00\x00\xFF\xFF\x00\xFF", + "\x00\x00\x00\x00\xFF\xFF\xFF\x00", "\x00\x00\x00\x00\xFF\xFF\xFF\xFF", + "\x00\x00\x00\xFF\x00\x00\x00\x00", "\x00\x00\x00\xFF\x00\x00\x00\xFF", + "\x00\x00\x00\xFF\x00\x00\xFF\x00", "\x00\x00\x00\xFF\x00\x00\xFF\xFF", + "\x00\x00\x00\xFF\x00\xFF\x00\x00", "\x00\x00\x00\xFF\x00\xFF\x00\xFF", + "\x00\x00\x00\xFF\x00\xFF\xFF\x00", "\x00\x00\x00\xFF\x00\xFF\xFF\xFF", + "\x00\x00\x00\xFF\xFF\x00\x00\x00", "\x00\x00\x00\xFF\xFF\x00\x00\xFF", + "\x00\x00\x00\xFF\xFF\x00\xFF\x00", "\x00\x00\x00\xFF\xFF\x00\xFF\xFF", + "\x00\x00\x00\xFF\xFF\xFF\x00\x00", "\x00\x00\x00\xFF\xFF\xFF\x00\xFF", + "\x00\x00\x00\xFF\xFF\xFF\xFF\x00", "\x00\x00\x00\xFF\xFF\xFF\xFF\xFF", + "\x00\x00\xFF\x00\x00\x00\x00\x00", "\x00\x00\xFF\x00\x00\x00\x00\xFF", + "\x00\x00\xFF\x00\x00\x00\xFF\x00", "\x00\x00\xFF\x00\x00\x00\xFF\xFF", + "\x00\x00\xFF\x00\x00\xFF\x00\x00", "\x00\x00\xFF\x00\x00\xFF\x00\xFF", + "\x00\x00\xFF\x00\x00\xFF\xFF\x00", "\x00\x00\xFF\x00\x00\xFF\xFF\xFF", + "\x00\x00\xFF\x00\xFF\x00\x00\x00", "\x00\x00\xFF\x00\xFF\x00\x00\xFF", + "\x00\x00\xFF\x00\xFF\x00\xFF\x00", "\x00\x00\xFF\x00\xFF\x00\xFF\xFF", + "\x00\x00\xFF\x00\xFF\xFF\x00\x00", "\x00\x00\xFF\x00\xFF\xFF\x00\xFF", + "\x00\x00\xFF\x00\xFF\xFF\xFF\x00", "\x00\x00\xFF\x00\xFF\xFF\xFF\xFF", + "\x00\x00\xFF\xFF\x00\x00\x00\x00", "\x00\x00\xFF\xFF\x00\x00\x00\xFF", + "\x00\x00\xFF\xFF\x00\x00\xFF\x00", "\x00\x00\xFF\xFF\x00\x00\xFF\xFF", + "\x00\x00\xFF\xFF\x00\xFF\x00\x00", "\x00\x00\xFF\xFF\x00\xFF\x00\xFF", + "\x00\x00\xFF\xFF\x00\xFF\xFF\x00", "\x00\x00\xFF\xFF\x00\xFF\xFF\xFF", + "\x00\x00\xFF\xFF\xFF\x00\x00\x00", "\x00\x00\xFF\xFF\xFF\x00\x00\xFF", + "\x00\x00\xFF\xFF\xFF\x00\xFF\x00", "\x00\x00\xFF\xFF\xFF\x00\xFF\xFF", + "\x00\x00\xFF\xFF\xFF\xFF\x00\x00", "\x00\x00\xFF\xFF\xFF\xFF\x00\xFF", + "\x00\x00\xFF\xFF\xFF\xFF\xFF\x00", "\x00\x00\xFF\xFF\xFF\xFF\xFF\xFF", + "\x00\xFF\x00\x00\x00\x00\x00\x00", "\x00\xFF\x00\x00\x00\x00\x00\xFF", + "\x00\xFF\x00\x00\x00\x00\xFF\x00", "\x00\xFF\x00\x00\x00\x00\xFF\xFF", + "\x00\xFF\x00\x00\x00\xFF\x00\x00", "\x00\xFF\x00\x00\x00\xFF\x00\xFF", + "\x00\xFF\x00\x00\x00\xFF\xFF\x00", "\x00\xFF\x00\x00\x00\xFF\xFF\xFF", + "\x00\xFF\x00\x00\xFF\x00\x00\x00", "\x00\xFF\x00\x00\xFF\x00\x00\xFF", + "\x00\xFF\x00\x00\xFF\x00\xFF\x00", "\x00\xFF\x00\x00\xFF\x00\xFF\xFF", + "\x00\xFF\x00\x00\xFF\xFF\x00\x00", "\x00\xFF\x00\x00\xFF\xFF\x00\xFF", + "\x00\xFF\x00\x00\xFF\xFF\xFF\x00", "\x00\xFF\x00\x00\xFF\xFF\xFF\xFF", + "\x00\xFF\x00\xFF\x00\x00\x00\x00", "\x00\xFF\x00\xFF\x00\x00\x00\xFF", + "\x00\xFF\x00\xFF\x00\x00\xFF\x00", "\x00\xFF\x00\xFF\x00\x00\xFF\xFF", + "\x00\xFF\x00\xFF\x00\xFF\x00\x00", "\x00\xFF\x00\xFF\x00\xFF\x00\xFF", + "\x00\xFF\x00\xFF\x00\xFF\xFF\x00", "\x00\xFF\x00\xFF\x00\xFF\xFF\xFF", + "\x00\xFF\x00\xFF\xFF\x00\x00\x00", "\x00\xFF\x00\xFF\xFF\x00\x00\xFF", + "\x00\xFF\x00\xFF\xFF\x00\xFF\x00", "\x00\xFF\x00\xFF\xFF\x00\xFF\xFF", + "\x00\xFF\x00\xFF\xFF\xFF\x00\x00", "\x00\xFF\x00\xFF\xFF\xFF\x00\xFF", + "\x00\xFF\x00\xFF\xFF\xFF\xFF\x00", "\x00\xFF\x00\xFF\xFF\xFF\xFF\xFF", + "\x00\xFF\xFF\x00\x00\x00\x00\x00", "\x00\xFF\xFF\x00\x00\x00\x00\xFF", + "\x00\xFF\xFF\x00\x00\x00\xFF\x00", "\x00\xFF\xFF\x00\x00\x00\xFF\xFF", + "\x00\xFF\xFF\x00\x00\xFF\x00\x00", "\x00\xFF\xFF\x00\x00\xFF\x00\xFF", + "\x00\xFF\xFF\x00\x00\xFF\xFF\x00", "\x00\xFF\xFF\x00\x00\xFF\xFF\xFF", + "\x00\xFF\xFF\x00\xFF\x00\x00\x00", "\x00\xFF\xFF\x00\xFF\x00\x00\xFF", + "\x00\xFF\xFF\x00\xFF\x00\xFF\x00", "\x00\xFF\xFF\x00\xFF\x00\xFF\xFF", + "\x00\xFF\xFF\x00\xFF\xFF\x00\x00", "\x00\xFF\xFF\x00\xFF\xFF\x00\xFF", + "\x00\xFF\xFF\x00\xFF\xFF\xFF\x00", "\x00\xFF\xFF\x00\xFF\xFF\xFF\xFF", + "\x00\xFF\xFF\xFF\x00\x00\x00\x00", "\x00\xFF\xFF\xFF\x00\x00\x00\xFF", + "\x00\xFF\xFF\xFF\x00\x00\xFF\x00", "\x00\xFF\xFF\xFF\x00\x00\xFF\xFF", + "\x00\xFF\xFF\xFF\x00\xFF\x00\x00", "\x00\xFF\xFF\xFF\x00\xFF\x00\xFF", + "\x00\xFF\xFF\xFF\x00\xFF\xFF\x00", "\x00\xFF\xFF\xFF\x00\xFF\xFF\xFF", + "\x00\xFF\xFF\xFF\xFF\x00\x00\x00", "\x00\xFF\xFF\xFF\xFF\x00\x00\xFF", + "\x00\xFF\xFF\xFF\xFF\x00\xFF\x00", "\x00\xFF\xFF\xFF\xFF\x00\xFF\xFF", + "\x00\xFF\xFF\xFF\xFF\xFF\x00\x00", "\x00\xFF\xFF\xFF\xFF\xFF\x00\xFF", + "\x00\xFF\xFF\xFF\xFF\xFF\xFF\x00", "\x00\xFF\xFF\xFF\xFF\xFF\xFF\xFF", + "\xFF\x00\x00\x00\x00\x00\x00\x00", "\xFF\x00\x00\x00\x00\x00\x00\xFF", + "\xFF\x00\x00\x00\x00\x00\xFF\x00", "\xFF\x00\x00\x00\x00\x00\xFF\xFF", + "\xFF\x00\x00\x00\x00\xFF\x00\x00", "\xFF\x00\x00\x00\x00\xFF\x00\xFF", + "\xFF\x00\x00\x00\x00\xFF\xFF\x00", "\xFF\x00\x00\x00\x00\xFF\xFF\xFF", + "\xFF\x00\x00\x00\xFF\x00\x00\x00", "\xFF\x00\x00\x00\xFF\x00\x00\xFF", + "\xFF\x00\x00\x00\xFF\x00\xFF\x00", "\xFF\x00\x00\x00\xFF\x00\xFF\xFF", + "\xFF\x00\x00\x00\xFF\xFF\x00\x00", "\xFF\x00\x00\x00\xFF\xFF\x00\xFF", + "\xFF\x00\x00\x00\xFF\xFF\xFF\x00", "\xFF\x00\x00\x00\xFF\xFF\xFF\xFF", + "\xFF\x00\x00\xFF\x00\x00\x00\x00", "\xFF\x00\x00\xFF\x00\x00\x00\xFF", + "\xFF\x00\x00\xFF\x00\x00\xFF\x00", "\xFF\x00\x00\xFF\x00\x00\xFF\xFF", + "\xFF\x00\x00\xFF\x00\xFF\x00\x00", "\xFF\x00\x00\xFF\x00\xFF\x00\xFF", + "\xFF\x00\x00\xFF\x00\xFF\xFF\x00", "\xFF\x00\x00\xFF\x00\xFF\xFF\xFF", + "\xFF\x00\x00\xFF\xFF\x00\x00\x00", "\xFF\x00\x00\xFF\xFF\x00\x00\xFF", + "\xFF\x00\x00\xFF\xFF\x00\xFF\x00", "\xFF\x00\x00\xFF\xFF\x00\xFF\xFF", + "\xFF\x00\x00\xFF\xFF\xFF\x00\x00", "\xFF\x00\x00\xFF\xFF\xFF\x00\xFF", + "\xFF\x00\x00\xFF\xFF\xFF\xFF\x00", "\xFF\x00\x00\xFF\xFF\xFF\xFF\xFF", + "\xFF\x00\xFF\x00\x00\x00\x00\x00", "\xFF\x00\xFF\x00\x00\x00\x00\xFF", + "\xFF\x00\xFF\x00\x00\x00\xFF\x00", "\xFF\x00\xFF\x00\x00\x00\xFF\xFF", + "\xFF\x00\xFF\x00\x00\xFF\x00\x00", "\xFF\x00\xFF\x00\x00\xFF\x00\xFF", + "\xFF\x00\xFF\x00\x00\xFF\xFF\x00", "\xFF\x00\xFF\x00\x00\xFF\xFF\xFF", + "\xFF\x00\xFF\x00\xFF\x00\x00\x00", "\xFF\x00\xFF\x00\xFF\x00\x00\xFF", + "\xFF\x00\xFF\x00\xFF\x00\xFF\x00", "\xFF\x00\xFF\x00\xFF\x00\xFF\xFF", + "\xFF\x00\xFF\x00\xFF\xFF\x00\x00", "\xFF\x00\xFF\x00\xFF\xFF\x00\xFF", + "\xFF\x00\xFF\x00\xFF\xFF\xFF\x00", "\xFF\x00\xFF\x00\xFF\xFF\xFF\xFF", + "\xFF\x00\xFF\xFF\x00\x00\x00\x00", "\xFF\x00\xFF\xFF\x00\x00\x00\xFF", + "\xFF\x00\xFF\xFF\x00\x00\xFF\x00", "\xFF\x00\xFF\xFF\x00\x00\xFF\xFF", + "\xFF\x00\xFF\xFF\x00\xFF\x00\x00", "\xFF\x00\xFF\xFF\x00\xFF\x00\xFF", + "\xFF\x00\xFF\xFF\x00\xFF\xFF\x00", "\xFF\x00\xFF\xFF\x00\xFF\xFF\xFF", + "\xFF\x00\xFF\xFF\xFF\x00\x00\x00", "\xFF\x00\xFF\xFF\xFF\x00\x00\xFF", + "\xFF\x00\xFF\xFF\xFF\x00\xFF\x00", "\xFF\x00\xFF\xFF\xFF\x00\xFF\xFF", + "\xFF\x00\xFF\xFF\xFF\xFF\x00\x00", "\xFF\x00\xFF\xFF\xFF\xFF\x00\xFF", + "\xFF\x00\xFF\xFF\xFF\xFF\xFF\x00", "\xFF\x00\xFF\xFF\xFF\xFF\xFF\xFF", + "\xFF\xFF\x00\x00\x00\x00\x00\x00", "\xFF\xFF\x00\x00\x00\x00\x00\xFF", + "\xFF\xFF\x00\x00\x00\x00\xFF\x00", "\xFF\xFF\x00\x00\x00\x00\xFF\xFF", + "\xFF\xFF\x00\x00\x00\xFF\x00\x00", "\xFF\xFF\x00\x00\x00\xFF\x00\xFF", + "\xFF\xFF\x00\x00\x00\xFF\xFF\x00", "\xFF\xFF\x00\x00\x00\xFF\xFF\xFF", + "\xFF\xFF\x00\x00\xFF\x00\x00\x00", "\xFF\xFF\x00\x00\xFF\x00\x00\xFF", + "\xFF\xFF\x00\x00\xFF\x00\xFF\x00", "\xFF\xFF\x00\x00\xFF\x00\xFF\xFF", + "\xFF\xFF\x00\x00\xFF\xFF\x00\x00", "\xFF\xFF\x00\x00\xFF\xFF\x00\xFF", + "\xFF\xFF\x00\x00\xFF\xFF\xFF\x00", "\xFF\xFF\x00\x00\xFF\xFF\xFF\xFF", + "\xFF\xFF\x00\xFF\x00\x00\x00\x00", "\xFF\xFF\x00\xFF\x00\x00\x00\xFF", + "\xFF\xFF\x00\xFF\x00\x00\xFF\x00", "\xFF\xFF\x00\xFF\x00\x00\xFF\xFF", + "\xFF\xFF\x00\xFF\x00\xFF\x00\x00", "\xFF\xFF\x00\xFF\x00\xFF\x00\xFF", + "\xFF\xFF\x00\xFF\x00\xFF\xFF\x00", "\xFF\xFF\x00\xFF\x00\xFF\xFF\xFF", + "\xFF\xFF\x00\xFF\xFF\x00\x00\x00", "\xFF\xFF\x00\xFF\xFF\x00\x00\xFF", + "\xFF\xFF\x00\xFF\xFF\x00\xFF\x00", "\xFF\xFF\x00\xFF\xFF\x00\xFF\xFF", + "\xFF\xFF\x00\xFF\xFF\xFF\x00\x00", "\xFF\xFF\x00\xFF\xFF\xFF\x00\xFF", + "\xFF\xFF\x00\xFF\xFF\xFF\xFF\x00", "\xFF\xFF\x00\xFF\xFF\xFF\xFF\xFF", + "\xFF\xFF\xFF\x00\x00\x00\x00\x00", "\xFF\xFF\xFF\x00\x00\x00\x00\xFF", + "\xFF\xFF\xFF\x00\x00\x00\xFF\x00", "\xFF\xFF\xFF\x00\x00\x00\xFF\xFF", + "\xFF\xFF\xFF\x00\x00\xFF\x00\x00", "\xFF\xFF\xFF\x00\x00\xFF\x00\xFF", + "\xFF\xFF\xFF\x00\x00\xFF\xFF\x00", "\xFF\xFF\xFF\x00\x00\xFF\xFF\xFF", + "\xFF\xFF\xFF\x00\xFF\x00\x00\x00", "\xFF\xFF\xFF\x00\xFF\x00\x00\xFF", + "\xFF\xFF\xFF\x00\xFF\x00\xFF\x00", "\xFF\xFF\xFF\x00\xFF\x00\xFF\xFF", + "\xFF\xFF\xFF\x00\xFF\xFF\x00\x00", "\xFF\xFF\xFF\x00\xFF\xFF\x00\xFF", + "\xFF\xFF\xFF\x00\xFF\xFF\xFF\x00", "\xFF\xFF\xFF\x00\xFF\xFF\xFF\xFF", + "\xFF\xFF\xFF\xFF\x00\x00\x00\x00", "\xFF\xFF\xFF\xFF\x00\x00\x00\xFF", + "\xFF\xFF\xFF\xFF\x00\x00\xFF\x00", "\xFF\xFF\xFF\xFF\x00\x00\xFF\xFF", + "\xFF\xFF\xFF\xFF\x00\xFF\x00\x00", "\xFF\xFF\xFF\xFF\x00\xFF\x00\xFF", + "\xFF\xFF\xFF\xFF\x00\xFF\xFF\x00", "\xFF\xFF\xFF\xFF\x00\xFF\xFF\xFF", + "\xFF\xFF\xFF\xFF\xFF\x00\x00\x00", "\xFF\xFF\xFF\xFF\xFF\x00\x00\xFF", + "\xFF\xFF\xFF\xFF\xFF\x00\xFF\x00", "\xFF\xFF\xFF\xFF\xFF\x00\xFF\xFF", + "\xFF\xFF\xFF\xFF\xFF\xFF\x00\x00", "\xFF\xFF\xFF\xFF\xFF\xFF\x00\xFF", + "\xFF\xFF\xFF\xFF\xFF\xFF\xFF\x00", "\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF" + ); + + /** + * IP mapping helper table. + * + * Indexing this table with each source byte performs the initial bit permutation. + * + * @var Array + * @access private + */ + var $ipmap = array( + 0x00, 0x10, 0x01, 0x11, 0x20, 0x30, 0x21, 0x31, + 0x02, 0x12, 0x03, 0x13, 0x22, 0x32, 0x23, 0x33, + 0x40, 0x50, 0x41, 0x51, 0x60, 0x70, 0x61, 0x71, + 0x42, 0x52, 0x43, 0x53, 0x62, 0x72, 0x63, 0x73, + 0x04, 0x14, 0x05, 0x15, 0x24, 0x34, 0x25, 0x35, + 0x06, 0x16, 0x07, 0x17, 0x26, 0x36, 0x27, 0x37, + 0x44, 0x54, 0x45, 0x55, 0x64, 0x74, 0x65, 0x75, + 0x46, 0x56, 0x47, 0x57, 0x66, 0x76, 0x67, 0x77, + 0x80, 0x90, 0x81, 0x91, 0xA0, 0xB0, 0xA1, 0xB1, + 0x82, 0x92, 0x83, 0x93, 0xA2, 0xB2, 0xA3, 0xB3, + 0xC0, 0xD0, 0xC1, 0xD1, 0xE0, 0xF0, 0xE1, 0xF1, + 0xC2, 0xD2, 0xC3, 0xD3, 0xE2, 0xF2, 0xE3, 0xF3, + 0x84, 0x94, 0x85, 0x95, 0xA4, 0xB4, 0xA5, 0xB5, + 0x86, 0x96, 0x87, 0x97, 0xA6, 0xB6, 0xA7, 0xB7, + 0xC4, 0xD4, 0xC5, 0xD5, 0xE4, 0xF4, 0xE5, 0xF5, + 0xC6, 0xD6, 0xC7, 0xD7, 0xE6, 0xF6, 0xE7, 0xF7, + 0x08, 0x18, 0x09, 0x19, 0x28, 0x38, 0x29, 0x39, + 0x0A, 0x1A, 0x0B, 0x1B, 0x2A, 0x3A, 0x2B, 0x3B, + 0x48, 0x58, 0x49, 0x59, 0x68, 0x78, 0x69, 0x79, + 0x4A, 0x5A, 0x4B, 0x5B, 0x6A, 0x7A, 0x6B, 0x7B, + 0x0C, 0x1C, 0x0D, 0x1D, 0x2C, 0x3C, 0x2D, 0x3D, + 0x0E, 0x1E, 0x0F, 0x1F, 0x2E, 0x3E, 0x2F, 0x3F, + 0x4C, 0x5C, 0x4D, 0x5D, 0x6C, 0x7C, 0x6D, 0x7D, + 0x4E, 0x5E, 0x4F, 0x5F, 0x6E, 0x7E, 0x6F, 0x7F, + 0x88, 0x98, 0x89, 0x99, 0xA8, 0xB8, 0xA9, 0xB9, + 0x8A, 0x9A, 0x8B, 0x9B, 0xAA, 0xBA, 0xAB, 0xBB, + 0xC8, 0xD8, 0xC9, 0xD9, 0xE8, 0xF8, 0xE9, 0xF9, + 0xCA, 0xDA, 0xCB, 0xDB, 0xEA, 0xFA, 0xEB, 0xFB, + 0x8C, 0x9C, 0x8D, 0x9D, 0xAC, 0xBC, 0xAD, 0xBD, + 0x8E, 0x9E, 0x8F, 0x9F, 0xAE, 0xBE, 0xAF, 0xBF, + 0xCC, 0xDC, 0xCD, 0xDD, 0xEC, 0xFC, 0xED, 0xFD, + 0xCE, 0xDE, 0xCF, 0xDF, 0xEE, 0xFE, 0xEF, 0xFF + ); + + /** + * Inverse IP mapping helper table. + * Indexing this table with a byte value reverses the bit order. + * + * @var Array + * @access private + */ + var $invipmap = array( + 0x00, 0x80, 0x40, 0xC0, 0x20, 0xA0, 0x60, 0xE0, + 0x10, 0x90, 0x50, 0xD0, 0x30, 0xB0, 0x70, 0xF0, + 0x08, 0x88, 0x48, 0xC8, 0x28, 0xA8, 0x68, 0xE8, + 0x18, 0x98, 0x58, 0xD8, 0x38, 0xB8, 0x78, 0xF8, + 0x04, 0x84, 0x44, 0xC4, 0x24, 0xA4, 0x64, 0xE4, + 0x14, 0x94, 0x54, 0xD4, 0x34, 0xB4, 0x74, 0xF4, + 0x0C, 0x8C, 0x4C, 0xCC, 0x2C, 0xAC, 0x6C, 0xEC, + 0x1C, 0x9C, 0x5C, 0xDC, 0x3C, 0xBC, 0x7C, 0xFC, + 0x02, 0x82, 0x42, 0xC2, 0x22, 0xA2, 0x62, 0xE2, + 0x12, 0x92, 0x52, 0xD2, 0x32, 0xB2, 0x72, 0xF2, + 0x0A, 0x8A, 0x4A, 0xCA, 0x2A, 0xAA, 0x6A, 0xEA, + 0x1A, 0x9A, 0x5A, 0xDA, 0x3A, 0xBA, 0x7A, 0xFA, + 0x06, 0x86, 0x46, 0xC6, 0x26, 0xA6, 0x66, 0xE6, + 0x16, 0x96, 0x56, 0xD6, 0x36, 0xB6, 0x76, 0xF6, + 0x0E, 0x8E, 0x4E, 0xCE, 0x2E, 0xAE, 0x6E, 0xEE, + 0x1E, 0x9E, 0x5E, 0xDE, 0x3E, 0xBE, 0x7E, 0xFE, + 0x01, 0x81, 0x41, 0xC1, 0x21, 0xA1, 0x61, 0xE1, + 0x11, 0x91, 0x51, 0xD1, 0x31, 0xB1, 0x71, 0xF1, + 0x09, 0x89, 0x49, 0xC9, 0x29, 0xA9, 0x69, 0xE9, + 0x19, 0x99, 0x59, 0xD9, 0x39, 0xB9, 0x79, 0xF9, + 0x05, 0x85, 0x45, 0xC5, 0x25, 0xA5, 0x65, 0xE5, + 0x15, 0x95, 0x55, 0xD5, 0x35, 0xB5, 0x75, 0xF5, + 0x0D, 0x8D, 0x4D, 0xCD, 0x2D, 0xAD, 0x6D, 0xED, + 0x1D, 0x9D, 0x5D, 0xDD, 0x3D, 0xBD, 0x7D, 0xFD, + 0x03, 0x83, 0x43, 0xC3, 0x23, 0xA3, 0x63, 0xE3, + 0x13, 0x93, 0x53, 0xD3, 0x33, 0xB3, 0x73, 0xF3, + 0x0B, 0x8B, 0x4B, 0xCB, 0x2B, 0xAB, 0x6B, 0xEB, + 0x1B, 0x9B, 0x5B, 0xDB, 0x3B, 0xBB, 0x7B, 0xFB, + 0x07, 0x87, 0x47, 0xC7, 0x27, 0xA7, 0x67, 0xE7, + 0x17, 0x97, 0x57, 0xD7, 0x37, 0xB7, 0x77, 0xF7, + 0x0F, 0x8F, 0x4F, 0xCF, 0x2F, 0xAF, 0x6F, 0xEF, + 0x1F, 0x9F, 0x5F, 0xDF, 0x3F, 0xBF, 0x7F, 0xFF + ); + + /** + * Pre-permuted S-box1 + * + * Each box ($sbox1-$sbox8) has been vectorized, then each value pre-permuted using the + * P table: concatenation can then be replaced by exclusive ORs. + * + * @var Array + * @access private + */ + var $sbox1 = array( + 0x00808200, 0x00000000, 0x00008000, 0x00808202, + 0x00808002, 0x00008202, 0x00000002, 0x00008000, + 0x00000200, 0x00808200, 0x00808202, 0x00000200, + 0x00800202, 0x00808002, 0x00800000, 0x00000002, + 0x00000202, 0x00800200, 0x00800200, 0x00008200, + 0x00008200, 0x00808000, 0x00808000, 0x00800202, + 0x00008002, 0x00800002, 0x00800002, 0x00008002, + 0x00000000, 0x00000202, 0x00008202, 0x00800000, + 0x00008000, 0x00808202, 0x00000002, 0x00808000, + 0x00808200, 0x00800000, 0x00800000, 0x00000200, + 0x00808002, 0x00008000, 0x00008200, 0x00800002, + 0x00000200, 0x00000002, 0x00800202, 0x00008202, + 0x00808202, 0x00008002, 0x00808000, 0x00800202, + 0x00800002, 0x00000202, 0x00008202, 0x00808200, + 0x00000202, 0x00800200, 0x00800200, 0x00000000, + 0x00008002, 0x00008200, 0x00000000, 0x00808002 + ); + + /** + * Pre-permuted S-box2 + * + * @var Array + * @access private + */ + var $sbox2 = array( + 0x40084010, 0x40004000, 0x00004000, 0x00084010, + 0x00080000, 0x00000010, 0x40080010, 0x40004010, + 0x40000010, 0x40084010, 0x40084000, 0x40000000, + 0x40004000, 0x00080000, 0x00000010, 0x40080010, + 0x00084000, 0x00080010, 0x40004010, 0x00000000, + 0x40000000, 0x00004000, 0x00084010, 0x40080000, + 0x00080010, 0x40000010, 0x00000000, 0x00084000, + 0x00004010, 0x40084000, 0x40080000, 0x00004010, + 0x00000000, 0x00084010, 0x40080010, 0x00080000, + 0x40004010, 0x40080000, 0x40084000, 0x00004000, + 0x40080000, 0x40004000, 0x00000010, 0x40084010, + 0x00084010, 0x00000010, 0x00004000, 0x40000000, + 0x00004010, 0x40084000, 0x00080000, 0x40000010, + 0x00080010, 0x40004010, 0x40000010, 0x00080010, + 0x00084000, 0x00000000, 0x40004000, 0x00004010, + 0x40000000, 0x40080010, 0x40084010, 0x00084000 + ); + + /** + * Pre-permuted S-box3 + * + * @var Array + * @access private + */ + var $sbox3 = array( + 0x00000104, 0x04010100, 0x00000000, 0x04010004, + 0x04000100, 0x00000000, 0x00010104, 0x04000100, + 0x00010004, 0x04000004, 0x04000004, 0x00010000, + 0x04010104, 0x00010004, 0x04010000, 0x00000104, + 0x04000000, 0x00000004, 0x04010100, 0x00000100, + 0x00010100, 0x04010000, 0x04010004, 0x00010104, + 0x04000104, 0x00010100, 0x00010000, 0x04000104, + 0x00000004, 0x04010104, 0x00000100, 0x04000000, + 0x04010100, 0x04000000, 0x00010004, 0x00000104, + 0x00010000, 0x04010100, 0x04000100, 0x00000000, + 0x00000100, 0x00010004, 0x04010104, 0x04000100, + 0x04000004, 0x00000100, 0x00000000, 0x04010004, + 0x04000104, 0x00010000, 0x04000000, 0x04010104, + 0x00000004, 0x00010104, 0x00010100, 0x04000004, + 0x04010000, 0x04000104, 0x00000104, 0x04010000, + 0x00010104, 0x00000004, 0x04010004, 0x00010100 + ); + + /** + * Pre-permuted S-box4 + * + * @var Array + * @access private + */ + var $sbox4 = array( + 0x80401000, 0x80001040, 0x80001040, 0x00000040, + 0x00401040, 0x80400040, 0x80400000, 0x80001000, + 0x00000000, 0x00401000, 0x00401000, 0x80401040, + 0x80000040, 0x00000000, 0x00400040, 0x80400000, + 0x80000000, 0x00001000, 0x00400000, 0x80401000, + 0x00000040, 0x00400000, 0x80001000, 0x00001040, + 0x80400040, 0x80000000, 0x00001040, 0x00400040, + 0x00001000, 0x00401040, 0x80401040, 0x80000040, + 0x00400040, 0x80400000, 0x00401000, 0x80401040, + 0x80000040, 0x00000000, 0x00000000, 0x00401000, + 0x00001040, 0x00400040, 0x80400040, 0x80000000, + 0x80401000, 0x80001040, 0x80001040, 0x00000040, + 0x80401040, 0x80000040, 0x80000000, 0x00001000, + 0x80400000, 0x80001000, 0x00401040, 0x80400040, + 0x80001000, 0x00001040, 0x00400000, 0x80401000, + 0x00000040, 0x00400000, 0x00001000, 0x00401040 + ); + + /** + * Pre-permuted S-box5 + * + * @var Array + * @access private + */ + var $sbox5 = array( + 0x00000080, 0x01040080, 0x01040000, 0x21000080, + 0x00040000, 0x00000080, 0x20000000, 0x01040000, + 0x20040080, 0x00040000, 0x01000080, 0x20040080, + 0x21000080, 0x21040000, 0x00040080, 0x20000000, + 0x01000000, 0x20040000, 0x20040000, 0x00000000, + 0x20000080, 0x21040080, 0x21040080, 0x01000080, + 0x21040000, 0x20000080, 0x00000000, 0x21000000, + 0x01040080, 0x01000000, 0x21000000, 0x00040080, + 0x00040000, 0x21000080, 0x00000080, 0x01000000, + 0x20000000, 0x01040000, 0x21000080, 0x20040080, + 0x01000080, 0x20000000, 0x21040000, 0x01040080, + 0x20040080, 0x00000080, 0x01000000, 0x21040000, + 0x21040080, 0x00040080, 0x21000000, 0x21040080, + 0x01040000, 0x00000000, 0x20040000, 0x21000000, + 0x00040080, 0x01000080, 0x20000080, 0x00040000, + 0x00000000, 0x20040000, 0x01040080, 0x20000080 + ); + + /** + * Pre-permuted S-box6 + * + * @var Array + * @access private + */ + var $sbox6 = array( + 0x10000008, 0x10200000, 0x00002000, 0x10202008, + 0x10200000, 0x00000008, 0x10202008, 0x00200000, + 0x10002000, 0x00202008, 0x00200000, 0x10000008, + 0x00200008, 0x10002000, 0x10000000, 0x00002008, + 0x00000000, 0x00200008, 0x10002008, 0x00002000, + 0x00202000, 0x10002008, 0x00000008, 0x10200008, + 0x10200008, 0x00000000, 0x00202008, 0x10202000, + 0x00002008, 0x00202000, 0x10202000, 0x10000000, + 0x10002000, 0x00000008, 0x10200008, 0x00202000, + 0x10202008, 0x00200000, 0x00002008, 0x10000008, + 0x00200000, 0x10002000, 0x10000000, 0x00002008, + 0x10000008, 0x10202008, 0x00202000, 0x10200000, + 0x00202008, 0x10202000, 0x00000000, 0x10200008, + 0x00000008, 0x00002000, 0x10200000, 0x00202008, + 0x00002000, 0x00200008, 0x10002008, 0x00000000, + 0x10202000, 0x10000000, 0x00200008, 0x10002008 + ); + + /** + * Pre-permuted S-box7 + * + * @var Array + * @access private + */ + var $sbox7 = array( + 0x00100000, 0x02100001, 0x02000401, 0x00000000, + 0x00000400, 0x02000401, 0x00100401, 0x02100400, + 0x02100401, 0x00100000, 0x00000000, 0x02000001, + 0x00000001, 0x02000000, 0x02100001, 0x00000401, + 0x02000400, 0x00100401, 0x00100001, 0x02000400, + 0x02000001, 0x02100000, 0x02100400, 0x00100001, + 0x02100000, 0x00000400, 0x00000401, 0x02100401, + 0x00100400, 0x00000001, 0x02000000, 0x00100400, + 0x02000000, 0x00100400, 0x00100000, 0x02000401, + 0x02000401, 0x02100001, 0x02100001, 0x00000001, + 0x00100001, 0x02000000, 0x02000400, 0x00100000, + 0x02100400, 0x00000401, 0x00100401, 0x02100400, + 0x00000401, 0x02000001, 0x02100401, 0x02100000, + 0x00100400, 0x00000000, 0x00000001, 0x02100401, + 0x00000000, 0x00100401, 0x02100000, 0x00000400, + 0x02000001, 0x02000400, 0x00000400, 0x00100001 + ); + + /** + * Pre-permuted S-box8 + * + * @var Array + * @access private + */ + var $sbox8 = array( + 0x08000820, 0x00000800, 0x00020000, 0x08020820, + 0x08000000, 0x08000820, 0x00000020, 0x08000000, + 0x00020020, 0x08020000, 0x08020820, 0x00020800, + 0x08020800, 0x00020820, 0x00000800, 0x00000020, + 0x08020000, 0x08000020, 0x08000800, 0x00000820, + 0x00020800, 0x00020020, 0x08020020, 0x08020800, + 0x00000820, 0x00000000, 0x00000000, 0x08020020, + 0x08000020, 0x08000800, 0x00020820, 0x00020000, + 0x00020820, 0x00020000, 0x08020800, 0x00000800, + 0x00000020, 0x08020020, 0x00000800, 0x00020820, + 0x08000800, 0x00000020, 0x08000020, 0x08020000, + 0x08020020, 0x08000000, 0x00020000, 0x08000820, + 0x00000000, 0x08020820, 0x00020020, 0x08000020, + 0x08020000, 0x08000800, 0x08000820, 0x00000000, + 0x08020820, 0x00020800, 0x00020800, 0x00000820, + 0x00000820, 0x00020020, 0x08000000, 0x08020800 + ); /** * Default Constructor. * - * Determines whether or not the mcrypt extension should be used. $mode should only, at present, be - * CRYPT_DES_MODE_ECB or CRYPT_DES_MODE_CBC. If not explictly set, CRYPT_DES_MODE_CBC will be used. + * Determines whether or not the mcrypt extension should be used. * + * $mode could be: + * + * - CRYPT_DES_MODE_ECB + * + * - CRYPT_DES_MODE_CBC + * + * - CRYPT_DES_MODE_CTR + * + * - CRYPT_DES_MODE_CFB + * + * - CRYPT_DES_MODE_OFB + * + * If not explictly set, CRYPT_DES_MODE_CBC will be used. + * + * @see Crypt_Base::Crypt_Base() * @param optional Integer $mode - * @return Crypt_DES * @access public */ - function Crypt_DES($mode = CRYPT_MODE_DES_CBC) + function Crypt_DES($mode = CRYPT_DES_MODE_CBC) { - if ( !defined('CRYPT_DES_MODE') ) { - switch (true) { - case extension_loaded('mcrypt'): - // i'd check to see if des was supported, by doing in_array('des', mcrypt_list_algorithms('')), - // but since that can be changed after the object has been created, there doesn't seem to be - // a lot of point... - define('CRYPT_DES_MODE', CRYPT_DES_MODE_MCRYPT); - break; - default: - define('CRYPT_DES_MODE', CRYPT_DES_MODE_INTERNAL); - } - } - - switch ( CRYPT_DES_MODE ) { - case CRYPT_DES_MODE_MCRYPT: - switch ($mode) { - case CRYPT_DES_MODE_ECB: - $this->paddable = true; - $this->mode = MCRYPT_MODE_ECB; - break; - case CRYPT_DES_MODE_CTR: - $this->mode = 'ctr'; - //$this->mode = in_array('ctr', mcrypt_list_modes()) ? 'ctr' : CRYPT_DES_MODE_CTR; - break; - case CRYPT_DES_MODE_CFB: - $this->mode = 'ncfb'; - break; - case CRYPT_DES_MODE_OFB: - $this->mode = MCRYPT_MODE_NOFB; - break; - case CRYPT_DES_MODE_CBC: - default: - $this->paddable = true; - $this->mode = MCRYPT_MODE_CBC; - } - - break; - default: - switch ($mode) { - case CRYPT_DES_MODE_ECB: - case CRYPT_DES_MODE_CBC: - $this->paddable = true; - $this->mode = $mode; - break; - case CRYPT_DES_MODE_CTR: - case CRYPT_DES_MODE_CFB: - case CRYPT_DES_MODE_OFB: - $this->mode = $mode; - break; - default: - $this->paddable = true; - $this->mode = CRYPT_DES_MODE_CBC; - } - } + parent::Crypt_Base($mode); } /** @@ -360,564 +701,50 @@ class Crypt_DES { * * If the key is not explicitly set, it'll be assumed to be all zero's. * + * @see Crypt_Base::setKey() * @access public * @param String $key */ function setKey($key) { - $this->keys = ( CRYPT_DES_MODE == CRYPT_DES_MODE_MCRYPT ) ? str_pad(substr($key, 0, 8), 8, chr(0)) : $this->_prepareKey($key); - $this->changed = true; + // We check/cut here only up to max length of the key. + // Key padding to the proper length will be done in _setupKey() + if (strlen($key) > $this->key_size_max) { + $key = substr($key, 0, $this->key_size_max); + } + + // Sets the key + parent::setKey($key); } /** - * Sets the initialization vector. (optional) + * Encrypts a block * - * SetIV is not required when CRYPT_DES_MODE_ECB is being used. If not explictly set, it'll be assumed - * to be all zero's. - * - * @access public - * @param String $iv - */ - function setIV($iv) - { - $this->encryptIV = $this->decryptIV = $this->iv = str_pad(substr($iv, 0, 8), 8, chr(0)); - $this->changed = true; - } - - /** - * Generate CTR XOR encryption key - * - * Encrypt the output of this and XOR it against the ciphertext / plaintext to get the - * plaintext / ciphertext in CTR mode. - * - * @see Crypt_DES::decrypt() + * @see Crypt_Base::_encryptBlock() + * @see Crypt_Base::encrypt() * @see Crypt_DES::encrypt() - * @access public - * @param Integer $length - * @param String $iv + * @access private + * @param String $in + * @return String */ - function _generate_xor($length, &$iv) + function _encryptBlock($in) { - $xor = ''; - $num_blocks = ($length + 7) >> 3; - for ($i = 0; $i < $num_blocks; $i++) { - $xor.= $iv; - for ($j = 4; $j <= 8; $j+=4) { - $temp = substr($iv, -$j, 4); - switch ($temp) { - case "\xFF\xFF\xFF\xFF": - $iv = substr_replace($iv, "\x00\x00\x00\x00", -$j, 4); - break; - case "\x7F\xFF\xFF\xFF": - $iv = substr_replace($iv, "\x80\x00\x00\x00", -$j, 4); - break 2; - default: - extract(unpack('Ncount', $temp)); - $iv = substr_replace($iv, pack('N', $count + 1), -$j, 4); - break 2; - } - } - } - - return $xor; + return $this->_processBlock($in, CRYPT_DES_ENCRYPT); } /** - * Encrypts a message. - * - * $plaintext will be padded with up to 8 additional bytes. Other DES implementations may or may not pad in the - * same manner. Other common approaches to padding and the reasons why it's necessary are discussed in the following - * URL: - * - * {@link http://www.di-mgt.com.au/cryptopad.html http://www.di-mgt.com.au/cryptopad.html} - * - * An alternative to padding is to, separately, send the length of the file. This is what SSH, in fact, does. - * strlen($plaintext) will still need to be a multiple of 8, however, arbitrary values can be added to make it that - * length. + * Decrypts a block * + * @see Crypt_Base::_decryptBlock() + * @see Crypt_Base::decrypt() * @see Crypt_DES::decrypt() - * @access public - * @param String $plaintext - */ - function encrypt($plaintext) - { - if ($this->paddable) { - $plaintext = $this->_pad($plaintext); - } - - if ( CRYPT_DES_MODE == CRYPT_DES_MODE_MCRYPT ) { - if ($this->enchanged) { - if (!isset($this->enmcrypt)) { - $this->enmcrypt = mcrypt_module_open(MCRYPT_DES, '', $this->mode, ''); - } - mcrypt_generic_init($this->enmcrypt, $this->keys, $this->encryptIV); - if ($this->mode != 'ncfb') { - $this->enchanged = false; - } - } - - if ($this->mode != 'ncfb') { - $ciphertext = mcrypt_generic($this->enmcrypt, $plaintext); - } else { - if ($this->enchanged) { - $this->ecb = mcrypt_module_open(MCRYPT_DES, '', MCRYPT_MODE_ECB, ''); - mcrypt_generic_init($this->ecb, $this->keys, "\0\0\0\0\0\0\0\0"); - $this->enchanged = false; - } - - if (strlen($this->enbuffer)) { - $ciphertext = $plaintext ^ substr($this->encryptIV, strlen($this->enbuffer)); - $this->enbuffer.= $ciphertext; - if (strlen($this->enbuffer) == 8) { - $this->encryptIV = $this->enbuffer; - $this->enbuffer = ''; - mcrypt_generic_init($this->enmcrypt, $this->keys, $this->encryptIV); - } - $plaintext = substr($plaintext, strlen($ciphertext)); - } else { - $ciphertext = ''; - } - - $last_pos = strlen($plaintext) & 0xFFFFFFF8; - $ciphertext.= $last_pos ? mcrypt_generic($this->enmcrypt, substr($plaintext, 0, $last_pos)) : ''; - - if (strlen($plaintext) & 0x7) { - if (strlen($ciphertext)) { - $this->encryptIV = substr($ciphertext, -8); - } - $this->encryptIV = mcrypt_generic($this->ecb, $this->encryptIV); - $this->enbuffer = substr($plaintext, $last_pos) ^ $this->encryptIV; - $ciphertext.= $this->enbuffer; - } - } - - if (!$this->continuousBuffer) { - mcrypt_generic_init($this->enmcrypt, $this->keys, $this->encryptIV); - } - - return $ciphertext; - } - - if (!is_array($this->keys)) { - $this->keys = $this->_prepareKey("\0\0\0\0\0\0\0\0"); - } - - $buffer = &$this->enbuffer; - $continuousBuffer = $this->continuousBuffer; - $ciphertext = ''; - switch ($this->mode) { - case CRYPT_DES_MODE_ECB: - for ($i = 0; $i < strlen($plaintext); $i+=8) { - $ciphertext.= $this->_processBlock(substr($plaintext, $i, 8), CRYPT_DES_ENCRYPT); - } - break; - case CRYPT_DES_MODE_CBC: - $xor = $this->encryptIV; - for ($i = 0; $i < strlen($plaintext); $i+=8) { - $block = substr($plaintext, $i, 8); - $block = $this->_processBlock($block ^ $xor, CRYPT_DES_ENCRYPT); - $xor = $block; - $ciphertext.= $block; - } - if ($this->continuousBuffer) { - $this->encryptIV = $xor; - } - break; - case CRYPT_DES_MODE_CTR: - $xor = $this->encryptIV; - if (strlen($buffer)) { - for ($i = 0; $i < strlen($plaintext); $i+=8) { - $block = substr($plaintext, $i, 8); - $buffer.= $this->_processBlock($this->_generate_xor(8, $xor), CRYPT_DES_ENCRYPT); - $key = $this->_string_shift($buffer, 8); - $ciphertext.= $block ^ $key; - } - } else { - for ($i = 0; $i < strlen($plaintext); $i+=8) { - $block = substr($plaintext, $i, 8); - $key = $this->_processBlock($this->_generate_xor(8, $xor), CRYPT_DES_ENCRYPT); - $ciphertext.= $block ^ $key; - } - } - if ($this->continuousBuffer) { - $this->encryptIV = $xor; - if ($start = strlen($plaintext) & 7) { - $buffer = substr($key, $start) . $buffer; - } - } - break; - case CRYPT_DES_MODE_CFB: - if (!empty($buffer['xor'])) { - $ciphertext = $plaintext ^ $buffer['xor']; - $iv = $buffer['encrypted'] . $ciphertext; - $start = strlen($ciphertext); - $buffer['encrypted'].= $ciphertext; - $buffer['xor'] = substr($buffer['xor'], strlen($ciphertext)); - } else { - $ciphertext = ''; - $iv = $this->encryptIV; - $start = 0; - } - - for ($i = $start; $i < strlen($plaintext); $i+=8) { - $block = substr($plaintext, $i, 8); - $xor = $this->_processBlock($iv, CRYPT_DES_ENCRYPT); - $iv = $block ^ $xor; - if ($continuousBuffer && strlen($iv) != 8) { - $buffer = array( - 'encrypted' => $iv, - 'xor' => substr($xor, strlen($iv)) - ); - } - $ciphertext.= $iv; - } - - if ($this->continuousBuffer) { - $this->encryptIV = $iv; - } - break; - case CRYPT_DES_MODE_OFB: - $xor = $this->encryptIV; - if (strlen($buffer)) { - for ($i = 0; $i < strlen($plaintext); $i+=8) { - $xor = $this->_processBlock($xor, CRYPT_DES_ENCRYPT); - $buffer.= $xor; - $key = $this->_string_shift($buffer, 8); - $ciphertext.= substr($plaintext, $i, 8) ^ $key; - } - } else { - for ($i = 0; $i < strlen($plaintext); $i+=8) { - $xor = $this->_processBlock($xor, CRYPT_DES_ENCRYPT); - $ciphertext.= substr($plaintext, $i, 8) ^ $xor; - } - $key = $xor; - } - if ($this->continuousBuffer) { - $this->encryptIV = $xor; - if ($start = strlen($plaintext) & 7) { - $buffer = substr($key, $start) . $buffer; - } - } - } - - return $ciphertext; - } - - /** - * Decrypts a message. - * - * If strlen($ciphertext) is not a multiple of 8, null bytes will be added to the end of the string until it is. - * - * @see Crypt_DES::encrypt() - * @access public - * @param String $ciphertext - */ - function decrypt($ciphertext) - { - if ($this->paddable) { - // we pad with chr(0) since that's what mcrypt_generic does. to quote from http://php.net/function.mcrypt-generic : - // "The data is padded with "\0" to make sure the length of the data is n * blocksize." - $ciphertext = str_pad($ciphertext, (strlen($ciphertext) + 7) & 0xFFFFFFF8, chr(0)); - } - - if ( CRYPT_DES_MODE == CRYPT_DES_MODE_MCRYPT ) { - if ($this->dechanged) { - if (!isset($this->demcrypt)) { - $this->demcrypt = mcrypt_module_open(MCRYPT_DES, '', $this->mode, ''); - } - mcrypt_generic_init($this->demcrypt, $this->keys, $this->decryptIV); - if ($this->mode != 'ncfb') { - $this->dechanged = false; - } - } - - if ($this->mode != 'ncfb') { - $plaintext = mdecrypt_generic($this->demcrypt, $ciphertext); - } else { - if ($this->dechanged) { - $this->ecb = mcrypt_module_open(MCRYPT_DES, '', MCRYPT_MODE_ECB, ''); - mcrypt_generic_init($this->ecb, $this->keys, "\0\0\0\0\0\0\0\0"); - $this->dechanged = false; - } - - if (strlen($this->debuffer)) { - $plaintext = $ciphertext ^ substr($this->decryptIV, strlen($this->debuffer)); - - $this->debuffer.= substr($ciphertext, 0, strlen($plaintext)); - if (strlen($this->debuffer) == 8) { - $this->decryptIV = $this->debuffer; - $this->debuffer = ''; - mcrypt_generic_init($this->demcrypt, $this->keys, $this->decryptIV); - } - $ciphertext = substr($ciphertext, strlen($plaintext)); - } else { - $plaintext = ''; - } - - $last_pos = strlen($ciphertext) & 0xFFFFFFF8; - $plaintext.= $last_pos ? mdecrypt_generic($this->demcrypt, substr($ciphertext, 0, $last_pos)) : ''; - - if (strlen($ciphertext) & 0x7) { - if (strlen($plaintext)) { - $this->decryptIV = substr($ciphertext, $last_pos - 8, 8); - } - $this->decryptIV = mcrypt_generic($this->ecb, $this->decryptIV); - $this->debuffer = substr($ciphertext, $last_pos); - $plaintext.= $this->debuffer ^ $this->decryptIV; - } - - return $plaintext; - } - - if (!$this->continuousBuffer) { - mcrypt_generic_init($this->demcrypt, $this->keys, $this->decryptIV); - } - - return $this->mode != 'ctr' ? $this->_unpad($plaintext) : $plaintext; - } - - if (!is_array($this->keys)) { - $this->keys = $this->_prepareKey("\0\0\0\0\0\0\0\0"); - } - - $buffer = &$this->debuffer; - $continuousBuffer = $this->continuousBuffer; - $plaintext = ''; - switch ($this->mode) { - case CRYPT_DES_MODE_ECB: - for ($i = 0; $i < strlen($ciphertext); $i+=8) { - $plaintext.= $this->_processBlock(substr($ciphertext, $i, 8), CRYPT_DES_DECRYPT); - } - break; - case CRYPT_DES_MODE_CBC: - $xor = $this->decryptIV; - for ($i = 0; $i < strlen($ciphertext); $i+=8) { - $block = substr($ciphertext, $i, 8); - $plaintext.= $this->_processBlock($block, CRYPT_DES_DECRYPT) ^ $xor; - $xor = $block; - } - if ($this->continuousBuffer) { - $this->decryptIV = $xor; - } - break; - case CRYPT_DES_MODE_CTR: - $xor = $this->decryptIV; - if (strlen($buffer)) { - for ($i = 0; $i < strlen($ciphertext); $i+=8) { - $block = substr($ciphertext, $i, 8); - $buffer.= $this->_processBlock($this->_generate_xor(8, $xor), CRYPT_DES_ENCRYPT); - $key = $this->_string_shift($buffer, 8); - $plaintext.= $block ^ $key; - } - } else { - for ($i = 0; $i < strlen($ciphertext); $i+=8) { - $block = substr($ciphertext, $i, 8); - $key = $this->_processBlock($this->_generate_xor(8, $xor), CRYPT_DES_ENCRYPT); - $plaintext.= $block ^ $key; - } - } - if ($this->continuousBuffer) { - $this->decryptIV = $xor; - if ($start = strlen($ciphertext) % 8) { - $buffer = substr($key, $start) . $buffer; - } - } - break; - case CRYPT_DES_MODE_CFB: - if (!empty($buffer['ciphertext'])) { - $plaintext = $ciphertext ^ substr($this->decryptIV, strlen($buffer['ciphertext'])); - $buffer['ciphertext'].= substr($ciphertext, 0, strlen($plaintext)); - if (strlen($buffer['ciphertext']) == 8) { - $xor = $this->_processBlock($buffer['ciphertext'], CRYPT_DES_ENCRYPT); - $buffer['ciphertext'] = ''; - } - $start = strlen($plaintext); - $block = $this->decryptIV; - } else { - $plaintext = ''; - $xor = $this->_processBlock($this->decryptIV, CRYPT_DES_ENCRYPT); - $start = 0; - } - - for ($i = $start; $i < strlen($ciphertext); $i+=8) { - $block = substr($ciphertext, $i, 8); - $plaintext.= $block ^ $xor; - if ($continuousBuffer && strlen($block) != 8) { - $buffer['ciphertext'].= $block; - $block = $xor; - } else if (strlen($block) == 8) { - $xor = $this->_processBlock($block, CRYPT_DES_ENCRYPT); - } - } - if ($this->continuousBuffer) { - $this->decryptIV = $block; - } - break; - case CRYPT_DES_MODE_OFB: - $xor = $this->decryptIV; - if (strlen($buffer)) { - for ($i = 0; $i < strlen($ciphertext); $i+=8) { - $xor = $this->_processBlock($xor, CRYPT_DES_ENCRYPT); - $buffer.= $xor; - $key = $this->_string_shift($buffer, 8); - $plaintext.= substr($ciphertext, $i, 8) ^ $key; - } - } else { - for ($i = 0; $i < strlen($ciphertext); $i+=8) { - $xor = $this->_processBlock($xor, CRYPT_DES_ENCRYPT); - $plaintext.= substr($ciphertext, $i, 8) ^ $xor; - } - $key = $xor; - } - if ($this->continuousBuffer) { - $this->decryptIV = $xor; - if ($start = strlen($ciphertext) % 8) { - $buffer = substr($key, $start) . $buffer; - } - } - } - - return $this->paddable ? $this->_unpad($plaintext) : $plaintext; - } - - /** - * Treat consecutive "packets" as if they are a continuous buffer. - * - * Say you have a 16-byte plaintext $plaintext. Using the default behavior, the two following code snippets - * will yield different outputs: - * - * - * echo $des->encrypt(substr($plaintext, 0, 8)); - * echo $des->encrypt(substr($plaintext, 8, 8)); - * - * - * echo $des->encrypt($plaintext); - * - * - * The solution is to enable the continuous buffer. Although this will resolve the above discrepancy, it creates - * another, as demonstrated with the following: - * - * - * $des->encrypt(substr($plaintext, 0, 8)); - * echo $des->decrypt($des->encrypt(substr($plaintext, 8, 8))); - * - * - * echo $des->decrypt($des->encrypt(substr($plaintext, 8, 8))); - * - * - * With the continuous buffer disabled, these would yield the same output. With it enabled, they yield different - * outputs. The reason is due to the fact that the initialization vector's change after every encryption / - * decryption round when the continuous buffer is enabled. When it's disabled, they remain constant. - * - * Put another way, when the continuous buffer is enabled, the state of the Crypt_DES() object changes after each - * encryption / decryption round, whereas otherwise, it'd remain constant. For this reason, it's recommended that - * continuous buffers not be used. They do offer better security and are, in fact, sometimes required (SSH uses them), - * however, they are also less intuitive and more likely to cause you problems. - * - * @see Crypt_DES::disableContinuousBuffer() - * @access public - */ - function enableContinuousBuffer() - { - $this->continuousBuffer = true; - } - - /** - * Treat consecutive packets as if they are a discontinuous buffer. - * - * The default behavior. - * - * @see Crypt_DES::enableContinuousBuffer() - * @access public - */ - function disableContinuousBuffer() - { - $this->continuousBuffer = false; - $this->encryptIV = $this->iv; - $this->decryptIV = $this->iv; - } - - /** - * Pad "packets". - * - * DES works by encrypting eight bytes at a time. If you ever need to encrypt or decrypt something that's not - * a multiple of eight, it becomes necessary to pad the input so that it's length is a multiple of eight. - * - * Padding is enabled by default. Sometimes, however, it is undesirable to pad strings. Such is the case in SSH1, - * where "packets" are padded with random bytes before being encrypted. Unpad these packets and you risk stripping - * away characters that shouldn't be stripped away. (SSH knows how many bytes are added because the length is - * transmitted separately) - * - * @see Crypt_DES::disablePadding() - * @access public - */ - function enablePadding() - { - $this->padding = true; - } - - /** - * Do not pad packets. - * - * @see Crypt_DES::enablePadding() - * @access public - */ - function disablePadding() - { - $this->padding = false; - } - - /** - * Pads a string - * - * Pads a string using the RSA PKCS padding standards so that its length is a multiple of the blocksize (8). - * 8 - (strlen($text) & 7) bytes are added, each of which is equal to chr(8 - (strlen($text) & 7) - * - * If padding is disabled and $text is not a multiple of the blocksize, the string will be padded regardless - * and padding will, hence forth, be enabled. - * - * @see Crypt_DES::_unpad() * @access private + * @param String $in + * @return String */ - function _pad($text) + function _decryptBlock($in) { - $length = strlen($text); - - if (!$this->padding) { - if (($length & 7) == 0) { - return $text; - } else { - user_error("The plaintext's length ($length) is not a multiple of the block size (8)", E_USER_NOTICE); - $this->padding = true; - } - } - - $pad = 8 - ($length & 7); - return str_pad($text, $length + $pad, chr($pad)); - } - - /** - * Unpads a string - * - * If padding is enabled and the reported padding length is invalid the encryption key will be assumed to be wrong - * and false will be returned. - * - * @see Crypt_DES::_pad() - * @access private - */ - function _unpad($text) - { - if (!$this->padding) { - return $text; - } - - $length = ord($text[strlen($text) - 1]); - - if (!$length || $length > 8) { - return false; - } - - return substr($text, 0, -$length); + return $this->_processBlock($in, CRYPT_DES_DECRYPT); } /** @@ -927,6 +754,8 @@ class Crypt_DES { * {@link http://en.wikipedia.org/wiki/Image:Feistel.png Feistel.png} to get a general * idea of what this function does. * + * @see Crypt_DES::_encryptBlock() + * @see Crypt_DES::_decryptBlock() * @access private * @param String $block * @param Integer $mode @@ -934,312 +763,773 @@ class Crypt_DES { */ function _processBlock($block, $mode) { - // s-boxes. in the official DES docs, they're described as being matrices that - // one accesses by using the first and last bits to determine the row and the - // middle four bits to determine the column. in this implementation, they've - // been converted to vectors - static $sbox = array( - array( - 14, 0, 4, 15, 13, 7, 1, 4, 2, 14, 15, 2, 11, 13, 8, 1, - 3, 10 ,10, 6, 6, 12, 12, 11, 5, 9, 9, 5, 0, 3, 7, 8, - 4, 15, 1, 12, 14, 8, 8, 2, 13, 4, 6, 9, 2, 1, 11, 7, - 15, 5, 12, 11, 9, 3, 7, 14, 3, 10, 10, 0, 5, 6, 0, 13 - ), - array( - 15, 3, 1, 13, 8, 4, 14, 7, 6, 15, 11, 2, 3, 8, 4, 14, - 9, 12, 7, 0, 2, 1, 13, 10, 12, 6, 0, 9, 5, 11, 10, 5, - 0, 13, 14, 8, 7, 10, 11, 1, 10, 3, 4, 15, 13, 4, 1, 2, - 5, 11, 8, 6, 12, 7, 6, 12, 9, 0, 3, 5, 2, 14, 15, 9 - ), - array( - 10, 13, 0, 7, 9, 0, 14, 9, 6, 3, 3, 4, 15, 6, 5, 10, - 1, 2, 13, 8, 12, 5, 7, 14, 11, 12, 4, 11, 2, 15, 8, 1, - 13, 1, 6, 10, 4, 13, 9, 0, 8, 6, 15, 9, 3, 8, 0, 7, - 11, 4, 1, 15, 2, 14, 12, 3, 5, 11, 10, 5, 14, 2, 7, 12 - ), - array( - 7, 13, 13, 8, 14, 11, 3, 5, 0, 6, 6, 15, 9, 0, 10, 3, - 1, 4, 2, 7, 8, 2, 5, 12, 11, 1, 12, 10, 4, 14, 15, 9, - 10, 3, 6, 15, 9, 0, 0, 6, 12, 10, 11, 1, 7, 13, 13, 8, - 15, 9, 1, 4, 3, 5, 14, 11, 5, 12, 2, 7, 8, 2, 4, 14 - ), - array( - 2, 14, 12, 11, 4, 2, 1, 12, 7, 4, 10, 7, 11, 13, 6, 1, - 8, 5, 5, 0, 3, 15, 15, 10, 13, 3, 0, 9, 14, 8, 9, 6, - 4, 11, 2, 8, 1, 12, 11, 7, 10, 1, 13, 14, 7, 2, 8, 13, - 15, 6, 9, 15, 12, 0, 5, 9, 6, 10, 3, 4, 0, 5, 14, 3 - ), - array( - 12, 10, 1, 15, 10, 4, 15, 2, 9, 7, 2, 12, 6, 9, 8, 5, - 0, 6, 13, 1, 3, 13, 4, 14, 14, 0, 7, 11, 5, 3, 11, 8, - 9, 4, 14, 3, 15, 2, 5, 12, 2, 9, 8, 5, 12, 15, 3, 10, - 7, 11, 0, 14, 4, 1, 10, 7, 1, 6, 13, 0, 11, 8, 6, 13 - ), - array( - 4, 13, 11, 0, 2, 11, 14, 7, 15, 4, 0, 9, 8, 1, 13, 10, - 3, 14, 12, 3, 9, 5, 7, 12, 5, 2, 10, 15, 6, 8, 1, 6, - 1, 6, 4, 11, 11, 13, 13, 8, 12, 1, 3, 4, 7, 10, 14, 7, - 10, 9, 15, 5, 6, 0, 8, 15, 0, 14, 5, 2, 9, 3, 2, 12 - ), - array( - 13, 1, 2, 15, 8, 13, 4, 8, 6, 10, 15, 3, 11, 7, 1, 4, - 10, 12, 9, 5, 3, 6, 14, 11, 5, 0, 0, 14, 12, 9, 7, 2, - 7, 2, 11, 1, 4, 14, 1, 7, 9, 4, 12, 10, 14, 8, 2, 13, - 0, 15, 6, 12, 10, 9, 13, 0, 15, 3, 3, 5, 5, 6, 8, 11 - ) - ); - - $keys = $this->keys; - - $temp = unpack('Na/Nb', $block); - $block = array($temp['a'], $temp['b']); - - // because php does arithmetic right shifts, if the most significant bits are set, right - // shifting those into the correct position will add 1's - not 0's. this will intefere - // with the | operation unless a second & is done. so we isolate these bits and left shift - // them into place. we then & each block with 0x7FFFFFFF to prevennt 1's from being added - // for any other shifts. - $msb = array( - ($block[0] >> 31) & 1, - ($block[1] >> 31) & 1 - ); - $block[0] &= 0x7FFFFFFF; - $block[1] &= 0x7FFFFFFF; - - // we isolate the appropriate bit in the appropriate integer and shift as appropriate. in - // some cases, there are going to be multiple bits in the same integer that need to be shifted - // in the same way. we combine those into one shift operation. - $block = array( - (($block[1] & 0x00000040) << 25) | (($block[1] & 0x00004000) << 16) | - (($block[1] & 0x00400001) << 7) | (($block[1] & 0x40000100) >> 2) | - (($block[0] & 0x00000040) << 21) | (($block[0] & 0x00004000) << 12) | - (($block[0] & 0x00400001) << 3) | (($block[0] & 0x40000100) >> 6) | - (($block[1] & 0x00000010) << 19) | (($block[1] & 0x00001000) << 10) | - (($block[1] & 0x00100000) << 1) | (($block[1] & 0x10000000) >> 8) | - (($block[0] & 0x00000010) << 15) | (($block[0] & 0x00001000) << 6) | - (($block[0] & 0x00100000) >> 3) | (($block[0] & 0x10000000) >> 12) | - (($block[1] & 0x00000004) << 13) | (($block[1] & 0x00000400) << 4) | - (($block[1] & 0x00040000) >> 5) | (($block[1] & 0x04000000) >> 14) | - (($block[0] & 0x00000004) << 9) | ( $block[0] & 0x00000400 ) | - (($block[0] & 0x00040000) >> 9) | (($block[0] & 0x04000000) >> 18) | - (($block[1] & 0x00010000) >> 11) | (($block[1] & 0x01000000) >> 20) | - (($block[0] & 0x00010000) >> 15) | (($block[0] & 0x01000000) >> 24) - , - (($block[1] & 0x00000080) << 24) | (($block[1] & 0x00008000) << 15) | - (($block[1] & 0x00800002) << 6) | (($block[0] & 0x00000080) << 20) | - (($block[0] & 0x00008000) << 11) | (($block[0] & 0x00800002) << 2) | - (($block[1] & 0x00000020) << 18) | (($block[1] & 0x00002000) << 9) | - ( $block[1] & 0x00200000 ) | (($block[1] & 0x20000000) >> 9) | - (($block[0] & 0x00000020) << 14) | (($block[0] & 0x00002000) << 5) | - (($block[0] & 0x00200000) >> 4) | (($block[0] & 0x20000000) >> 13) | - (($block[1] & 0x00000008) << 12) | (($block[1] & 0x00000800) << 3) | - (($block[1] & 0x00080000) >> 6) | (($block[1] & 0x08000000) >> 15) | - (($block[0] & 0x00000008) << 8) | (($block[0] & 0x00000800) >> 1) | - (($block[0] & 0x00080000) >> 10) | (($block[0] & 0x08000000) >> 19) | - (($block[1] & 0x00000200) >> 3) | (($block[0] & 0x00000200) >> 7) | - (($block[1] & 0x00020000) >> 12) | (($block[1] & 0x02000000) >> 21) | - (($block[0] & 0x00020000) >> 16) | (($block[0] & 0x02000000) >> 25) | - ($msb[1] << 28) | ($msb[0] << 24) - ); - - for ($i = 0; $i < 16; $i++) { - // start of "the Feistel (F) function" - see the following URL: - // http://en.wikipedia.org/wiki/Image:Data_Encryption_Standard_InfoBox_Diagram.png - $temp = (($sbox[0][((($block[1] >> 27) & 0x1F) | (($block[1] & 1) << 5)) ^ $keys[$mode][$i][0]]) << 28) - | (($sbox[1][(($block[1] & 0x1F800000) >> 23) ^ $keys[$mode][$i][1]]) << 24) - | (($sbox[2][(($block[1] & 0x01F80000) >> 19) ^ $keys[$mode][$i][2]]) << 20) - | (($sbox[3][(($block[1] & 0x001F8000) >> 15) ^ $keys[$mode][$i][3]]) << 16) - | (($sbox[4][(($block[1] & 0x0001F800) >> 11) ^ $keys[$mode][$i][4]]) << 12) - | (($sbox[5][(($block[1] & 0x00001F80) >> 7) ^ $keys[$mode][$i][5]]) << 8) - | (($sbox[6][(($block[1] & 0x000001F8) >> 3) ^ $keys[$mode][$i][6]]) << 4) - | ( $sbox[7][((($block[1] & 0x1F) << 1) | (($block[1] >> 31) & 1)) ^ $keys[$mode][$i][7]]); - - $msb = ($temp >> 31) & 1; - $temp &= 0x7FFFFFFF; - $newBlock = (($temp & 0x00010000) << 15) | (($temp & 0x02020120) << 5) - | (($temp & 0x00001800) << 17) | (($temp & 0x01000000) >> 10) - | (($temp & 0x00000008) << 24) | (($temp & 0x00100000) << 6) - | (($temp & 0x00000010) << 21) | (($temp & 0x00008000) << 9) - | (($temp & 0x00000200) << 12) | (($temp & 0x10000000) >> 27) - | (($temp & 0x00000040) << 14) | (($temp & 0x08000000) >> 8) - | (($temp & 0x00004000) << 4) | (($temp & 0x00000002) << 16) - | (($temp & 0x00442000) >> 6) | (($temp & 0x40800000) >> 15) - | (($temp & 0x00000001) << 11) | (($temp & 0x20000000) >> 20) - | (($temp & 0x00080000) >> 13) | (($temp & 0x00000004) << 3) - | (($temp & 0x04000000) >> 22) | (($temp & 0x00000480) >> 7) - | (($temp & 0x00200000) >> 19) | ($msb << 23); - // end of "the Feistel (F) function" - $newBlock is F's output - - $temp = $block[1]; - $block[1] = $block[0] ^ $newBlock; - $block[0] = $temp; + static $sbox1, $sbox2, $sbox3, $sbox4, $sbox5, $sbox6, $sbox7, $sbox8, $shuffleip, $shuffleinvip; + if (!$sbox1) { + $sbox1 = array_map("intval", $this->sbox1); + $sbox2 = array_map("intval", $this->sbox2); + $sbox3 = array_map("intval", $this->sbox3); + $sbox4 = array_map("intval", $this->sbox4); + $sbox5 = array_map("intval", $this->sbox5); + $sbox6 = array_map("intval", $this->sbox6); + $sbox7 = array_map("intval", $this->sbox7); + $sbox8 = array_map("intval", $this->sbox8); + /* Merge $shuffle with $[inv]ipmap */ + for ($i = 0; $i < 256; ++$i) { + $shuffleip[] = $this->shuffle[$this->ipmap[$i]]; + $shuffleinvip[] = $this->shuffle[$this->invipmap[$i]]; + } } - $msb = array( - ($block[0] >> 31) & 1, - ($block[1] >> 31) & 1 - ); - $block[0] &= 0x7FFFFFFF; - $block[1] &= 0x7FFFFFFF; + $keys = $this->keys[$mode]; + $ki = -1; - $block = array( - (($block[0] & 0x01000004) << 7) | (($block[1] & 0x01000004) << 6) | - (($block[0] & 0x00010000) << 13) | (($block[1] & 0x00010000) << 12) | - (($block[0] & 0x00000100) << 19) | (($block[1] & 0x00000100) << 18) | - (($block[0] & 0x00000001) << 25) | (($block[1] & 0x00000001) << 24) | - (($block[0] & 0x02000008) >> 2) | (($block[1] & 0x02000008) >> 3) | - (($block[0] & 0x00020000) << 4) | (($block[1] & 0x00020000) << 3) | - (($block[0] & 0x00000200) << 10) | (($block[1] & 0x00000200) << 9) | - (($block[0] & 0x00000002) << 16) | (($block[1] & 0x00000002) << 15) | - (($block[0] & 0x04000000) >> 11) | (($block[1] & 0x04000000) >> 12) | - (($block[0] & 0x00040000) >> 5) | (($block[1] & 0x00040000) >> 6) | - (($block[0] & 0x00000400) << 1) | ( $block[1] & 0x00000400 ) | - (($block[0] & 0x08000000) >> 20) | (($block[1] & 0x08000000) >> 21) | - (($block[0] & 0x00080000) >> 14) | (($block[1] & 0x00080000) >> 15) | - (($block[0] & 0x00000800) >> 8) | (($block[1] & 0x00000800) >> 9) - , - (($block[0] & 0x10000040) << 3) | (($block[1] & 0x10000040) << 2) | - (($block[0] & 0x00100000) << 9) | (($block[1] & 0x00100000) << 8) | - (($block[0] & 0x00001000) << 15) | (($block[1] & 0x00001000) << 14) | - (($block[0] & 0x00000010) << 21) | (($block[1] & 0x00000010) << 20) | - (($block[0] & 0x20000080) >> 6) | (($block[1] & 0x20000080) >> 7) | - ( $block[0] & 0x00200000 ) | (($block[1] & 0x00200000) >> 1) | - (($block[0] & 0x00002000) << 6) | (($block[1] & 0x00002000) << 5) | - (($block[0] & 0x00000020) << 12) | (($block[1] & 0x00000020) << 11) | - (($block[0] & 0x40000000) >> 15) | (($block[1] & 0x40000000) >> 16) | - (($block[0] & 0x00400000) >> 9) | (($block[1] & 0x00400000) >> 10) | - (($block[0] & 0x00004000) >> 3) | (($block[1] & 0x00004000) >> 4) | - (($block[0] & 0x00800000) >> 18) | (($block[1] & 0x00800000) >> 19) | - (($block[0] & 0x00008000) >> 12) | (($block[1] & 0x00008000) >> 13) | - ($msb[0] << 7) | ($msb[1] << 6) - ); + // Do the initial IP permutation. + $t = unpack('Nl/Nr', $block); + list($l, $r) = array($t['l'], $t['r']); + $block = ($shuffleip[ $r & 0xFF] & "\x80\x80\x80\x80\x80\x80\x80\x80") | + ($shuffleip[($r >> 8) & 0xFF] & "\x40\x40\x40\x40\x40\x40\x40\x40") | + ($shuffleip[($r >> 16) & 0xFF] & "\x20\x20\x20\x20\x20\x20\x20\x20") | + ($shuffleip[($r >> 24) & 0xFF] & "\x10\x10\x10\x10\x10\x10\x10\x10") | + ($shuffleip[ $l & 0xFF] & "\x08\x08\x08\x08\x08\x08\x08\x08") | + ($shuffleip[($l >> 8) & 0xFF] & "\x04\x04\x04\x04\x04\x04\x04\x04") | + ($shuffleip[($l >> 16) & 0xFF] & "\x02\x02\x02\x02\x02\x02\x02\x02") | + ($shuffleip[($l >> 24) & 0xFF] & "\x01\x01\x01\x01\x01\x01\x01\x01"); - return pack('NN', $block[0], $block[1]); + // Extract L0 and R0. + $t = unpack('Nl/Nr', $block); + list($l, $r) = array($t['l'], $t['r']); + + for ($des_round = 0; $des_round < $this->des_rounds; ++$des_round) { + // Perform the 16 steps. + for ($i = 0; $i < 16; $i++) { + // start of "the Feistel (F) function" - see the following URL: + // http://en.wikipedia.org/wiki/Image:Data_Encryption_Standard_InfoBox_Diagram.png + // Merge key schedule. + $b1 = (($r >> 3) & 0x1FFFFFFF) ^ ($r << 29) ^ $keys[++$ki]; + $b2 = (($r >> 31) & 0x00000001) ^ ($r << 1) ^ $keys[++$ki]; + + // S-box indexing. + $t = $sbox1[($b1 >> 24) & 0x3F] ^ $sbox2[($b2 >> 24) & 0x3F] ^ + $sbox3[($b1 >> 16) & 0x3F] ^ $sbox4[($b2 >> 16) & 0x3F] ^ + $sbox5[($b1 >> 8) & 0x3F] ^ $sbox6[($b2 >> 8) & 0x3F] ^ + $sbox7[ $b1 & 0x3F] ^ $sbox8[ $b2 & 0x3F] ^ $l; + // end of "the Feistel (F) function" + + $l = $r; + $r = $t; + } + + // Last step should not permute L & R. + $t = $l; + $l = $r; + $r = $t; + } + + // Perform the inverse IP permutation. + return ($shuffleinvip[($r >> 24) & 0xFF] & "\x80\x80\x80\x80\x80\x80\x80\x80") | + ($shuffleinvip[($l >> 24) & 0xFF] & "\x40\x40\x40\x40\x40\x40\x40\x40") | + ($shuffleinvip[($r >> 16) & 0xFF] & "\x20\x20\x20\x20\x20\x20\x20\x20") | + ($shuffleinvip[($l >> 16) & 0xFF] & "\x10\x10\x10\x10\x10\x10\x10\x10") | + ($shuffleinvip[($r >> 8) & 0xFF] & "\x08\x08\x08\x08\x08\x08\x08\x08") | + ($shuffleinvip[($l >> 8) & 0xFF] & "\x04\x04\x04\x04\x04\x04\x04\x04") | + ($shuffleinvip[ $r & 0xFF] & "\x02\x02\x02\x02\x02\x02\x02\x02") | + ($shuffleinvip[ $l & 0xFF] & "\x01\x01\x01\x01\x01\x01\x01\x01"); } /** - * Creates the key schedule. + * Creates the key schedule * + * @see Crypt_Base::_setupKey() * @access private - * @param String $key - * @return Array */ - function _prepareKey($key) + function _setupKey() { + if (isset($this->kl['key']) && $this->key === $this->kl['key'] && $this->des_rounds === $this->kl['des_rounds']) { + // already expanded + return; + } + $this->kl = array('key' => $this->key, 'des_rounds' => $this->des_rounds); + static $shifts = array( // number of key bits shifted per round 1, 1, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 1 ); - // pad the key and remove extra characters as appropriate. - $key = str_pad(substr($key, 0, 8), 8, chr(0)); - - $temp = unpack('Na/Nb', $key); - $key = array($temp['a'], $temp['b']); - $msb = array( - ($key[0] >> 31) & 1, - ($key[1] >> 31) & 1 + static $pc1map = array( + 0x00, 0x00, 0x08, 0x08, 0x04, 0x04, 0x0C, 0x0C, + 0x02, 0x02, 0x0A, 0x0A, 0x06, 0x06, 0x0E, 0x0E, + 0x10, 0x10, 0x18, 0x18, 0x14, 0x14, 0x1C, 0x1C, + 0x12, 0x12, 0x1A, 0x1A, 0x16, 0x16, 0x1E, 0x1E, + 0x20, 0x20, 0x28, 0x28, 0x24, 0x24, 0x2C, 0x2C, + 0x22, 0x22, 0x2A, 0x2A, 0x26, 0x26, 0x2E, 0x2E, + 0x30, 0x30, 0x38, 0x38, 0x34, 0x34, 0x3C, 0x3C, + 0x32, 0x32, 0x3A, 0x3A, 0x36, 0x36, 0x3E, 0x3E, + 0x40, 0x40, 0x48, 0x48, 0x44, 0x44, 0x4C, 0x4C, + 0x42, 0x42, 0x4A, 0x4A, 0x46, 0x46, 0x4E, 0x4E, + 0x50, 0x50, 0x58, 0x58, 0x54, 0x54, 0x5C, 0x5C, + 0x52, 0x52, 0x5A, 0x5A, 0x56, 0x56, 0x5E, 0x5E, + 0x60, 0x60, 0x68, 0x68, 0x64, 0x64, 0x6C, 0x6C, + 0x62, 0x62, 0x6A, 0x6A, 0x66, 0x66, 0x6E, 0x6E, + 0x70, 0x70, 0x78, 0x78, 0x74, 0x74, 0x7C, 0x7C, + 0x72, 0x72, 0x7A, 0x7A, 0x76, 0x76, 0x7E, 0x7E, + 0x80, 0x80, 0x88, 0x88, 0x84, 0x84, 0x8C, 0x8C, + 0x82, 0x82, 0x8A, 0x8A, 0x86, 0x86, 0x8E, 0x8E, + 0x90, 0x90, 0x98, 0x98, 0x94, 0x94, 0x9C, 0x9C, + 0x92, 0x92, 0x9A, 0x9A, 0x96, 0x96, 0x9E, 0x9E, + 0xA0, 0xA0, 0xA8, 0xA8, 0xA4, 0xA4, 0xAC, 0xAC, + 0xA2, 0xA2, 0xAA, 0xAA, 0xA6, 0xA6, 0xAE, 0xAE, + 0xB0, 0xB0, 0xB8, 0xB8, 0xB4, 0xB4, 0xBC, 0xBC, + 0xB2, 0xB2, 0xBA, 0xBA, 0xB6, 0xB6, 0xBE, 0xBE, + 0xC0, 0xC0, 0xC8, 0xC8, 0xC4, 0xC4, 0xCC, 0xCC, + 0xC2, 0xC2, 0xCA, 0xCA, 0xC6, 0xC6, 0xCE, 0xCE, + 0xD0, 0xD0, 0xD8, 0xD8, 0xD4, 0xD4, 0xDC, 0xDC, + 0xD2, 0xD2, 0xDA, 0xDA, 0xD6, 0xD6, 0xDE, 0xDE, + 0xE0, 0xE0, 0xE8, 0xE8, 0xE4, 0xE4, 0xEC, 0xEC, + 0xE2, 0xE2, 0xEA, 0xEA, 0xE6, 0xE6, 0xEE, 0xEE, + 0xF0, 0xF0, 0xF8, 0xF8, 0xF4, 0xF4, 0xFC, 0xFC, + 0xF2, 0xF2, 0xFA, 0xFA, 0xF6, 0xF6, 0xFE, 0xFE ); - $key[0] &= 0x7FFFFFFF; - $key[1] &= 0x7FFFFFFF; - $key = array( - (($key[1] & 0x00000002) << 26) | (($key[1] & 0x00000204) << 17) | - (($key[1] & 0x00020408) << 8) | (($key[1] & 0x02040800) >> 1) | - (($key[0] & 0x00000002) << 22) | (($key[0] & 0x00000204) << 13) | - (($key[0] & 0x00020408) << 4) | (($key[0] & 0x02040800) >> 5) | - (($key[1] & 0x04080000) >> 10) | (($key[0] & 0x04080000) >> 14) | - (($key[1] & 0x08000000) >> 19) | (($key[0] & 0x08000000) >> 23) | - (($key[0] & 0x00000010) >> 1) | (($key[0] & 0x00001000) >> 10) | - (($key[0] & 0x00100000) >> 19) | (($key[0] & 0x10000000) >> 28) - , - (($key[1] & 0x00000080) << 20) | (($key[1] & 0x00008000) << 11) | - (($key[1] & 0x00800000) << 2) | (($key[0] & 0x00000080) << 16) | - (($key[0] & 0x00008000) << 7) | (($key[0] & 0x00800000) >> 2) | - (($key[1] & 0x00000040) << 13) | (($key[1] & 0x00004000) << 4) | - (($key[1] & 0x00400000) >> 5) | (($key[1] & 0x40000000) >> 14) | - (($key[0] & 0x00000040) << 9) | ( $key[0] & 0x00004000 ) | - (($key[0] & 0x00400000) >> 9) | (($key[0] & 0x40000000) >> 18) | - (($key[1] & 0x00000020) << 6) | (($key[1] & 0x00002000) >> 3) | - (($key[1] & 0x00200000) >> 12) | (($key[1] & 0x20000000) >> 21) | - (($key[0] & 0x00000020) << 2) | (($key[0] & 0x00002000) >> 7) | - (($key[0] & 0x00200000) >> 16) | (($key[0] & 0x20000000) >> 25) | - (($key[1] & 0x00000010) >> 1) | (($key[1] & 0x00001000) >> 10) | - (($key[1] & 0x00100000) >> 19) | (($key[1] & 0x10000000) >> 28) | - ($msb[1] << 24) | ($msb[0] << 20) - ); + // Mapping tables for the PC-2 transformation. + static $pc2mapc1 = array( + 0x00000000, 0x00000400, 0x00200000, 0x00200400, + 0x00000001, 0x00000401, 0x00200001, 0x00200401, + 0x02000000, 0x02000400, 0x02200000, 0x02200400, + 0x02000001, 0x02000401, 0x02200001, 0x02200401 + ); + static $pc2mapc2 = array( + 0x00000000, 0x00000800, 0x08000000, 0x08000800, + 0x00010000, 0x00010800, 0x08010000, 0x08010800, + 0x00000000, 0x00000800, 0x08000000, 0x08000800, + 0x00010000, 0x00010800, 0x08010000, 0x08010800, + 0x00000100, 0x00000900, 0x08000100, 0x08000900, + 0x00010100, 0x00010900, 0x08010100, 0x08010900, + 0x00000100, 0x00000900, 0x08000100, 0x08000900, + 0x00010100, 0x00010900, 0x08010100, 0x08010900, + 0x00000010, 0x00000810, 0x08000010, 0x08000810, + 0x00010010, 0x00010810, 0x08010010, 0x08010810, + 0x00000010, 0x00000810, 0x08000010, 0x08000810, + 0x00010010, 0x00010810, 0x08010010, 0x08010810, + 0x00000110, 0x00000910, 0x08000110, 0x08000910, + 0x00010110, 0x00010910, 0x08010110, 0x08010910, + 0x00000110, 0x00000910, 0x08000110, 0x08000910, + 0x00010110, 0x00010910, 0x08010110, 0x08010910, + 0x00040000, 0x00040800, 0x08040000, 0x08040800, + 0x00050000, 0x00050800, 0x08050000, 0x08050800, + 0x00040000, 0x00040800, 0x08040000, 0x08040800, + 0x00050000, 0x00050800, 0x08050000, 0x08050800, + 0x00040100, 0x00040900, 0x08040100, 0x08040900, + 0x00050100, 0x00050900, 0x08050100, 0x08050900, + 0x00040100, 0x00040900, 0x08040100, 0x08040900, + 0x00050100, 0x00050900, 0x08050100, 0x08050900, + 0x00040010, 0x00040810, 0x08040010, 0x08040810, + 0x00050010, 0x00050810, 0x08050010, 0x08050810, + 0x00040010, 0x00040810, 0x08040010, 0x08040810, + 0x00050010, 0x00050810, 0x08050010, 0x08050810, + 0x00040110, 0x00040910, 0x08040110, 0x08040910, + 0x00050110, 0x00050910, 0x08050110, 0x08050910, + 0x00040110, 0x00040910, 0x08040110, 0x08040910, + 0x00050110, 0x00050910, 0x08050110, 0x08050910, + 0x01000000, 0x01000800, 0x09000000, 0x09000800, + 0x01010000, 0x01010800, 0x09010000, 0x09010800, + 0x01000000, 0x01000800, 0x09000000, 0x09000800, + 0x01010000, 0x01010800, 0x09010000, 0x09010800, + 0x01000100, 0x01000900, 0x09000100, 0x09000900, + 0x01010100, 0x01010900, 0x09010100, 0x09010900, + 0x01000100, 0x01000900, 0x09000100, 0x09000900, + 0x01010100, 0x01010900, 0x09010100, 0x09010900, + 0x01000010, 0x01000810, 0x09000010, 0x09000810, + 0x01010010, 0x01010810, 0x09010010, 0x09010810, + 0x01000010, 0x01000810, 0x09000010, 0x09000810, + 0x01010010, 0x01010810, 0x09010010, 0x09010810, + 0x01000110, 0x01000910, 0x09000110, 0x09000910, + 0x01010110, 0x01010910, 0x09010110, 0x09010910, + 0x01000110, 0x01000910, 0x09000110, 0x09000910, + 0x01010110, 0x01010910, 0x09010110, 0x09010910, + 0x01040000, 0x01040800, 0x09040000, 0x09040800, + 0x01050000, 0x01050800, 0x09050000, 0x09050800, + 0x01040000, 0x01040800, 0x09040000, 0x09040800, + 0x01050000, 0x01050800, 0x09050000, 0x09050800, + 0x01040100, 0x01040900, 0x09040100, 0x09040900, + 0x01050100, 0x01050900, 0x09050100, 0x09050900, + 0x01040100, 0x01040900, 0x09040100, 0x09040900, + 0x01050100, 0x01050900, 0x09050100, 0x09050900, + 0x01040010, 0x01040810, 0x09040010, 0x09040810, + 0x01050010, 0x01050810, 0x09050010, 0x09050810, + 0x01040010, 0x01040810, 0x09040010, 0x09040810, + 0x01050010, 0x01050810, 0x09050010, 0x09050810, + 0x01040110, 0x01040910, 0x09040110, 0x09040910, + 0x01050110, 0x01050910, 0x09050110, 0x09050910, + 0x01040110, 0x01040910, 0x09040110, 0x09040910, + 0x01050110, 0x01050910, 0x09050110, 0x09050910 + ); + static $pc2mapc3 = array( + 0x00000000, 0x00000004, 0x00001000, 0x00001004, + 0x00000000, 0x00000004, 0x00001000, 0x00001004, + 0x10000000, 0x10000004, 0x10001000, 0x10001004, + 0x10000000, 0x10000004, 0x10001000, 0x10001004, + 0x00000020, 0x00000024, 0x00001020, 0x00001024, + 0x00000020, 0x00000024, 0x00001020, 0x00001024, + 0x10000020, 0x10000024, 0x10001020, 0x10001024, + 0x10000020, 0x10000024, 0x10001020, 0x10001024, + 0x00080000, 0x00080004, 0x00081000, 0x00081004, + 0x00080000, 0x00080004, 0x00081000, 0x00081004, + 0x10080000, 0x10080004, 0x10081000, 0x10081004, + 0x10080000, 0x10080004, 0x10081000, 0x10081004, + 0x00080020, 0x00080024, 0x00081020, 0x00081024, + 0x00080020, 0x00080024, 0x00081020, 0x00081024, + 0x10080020, 0x10080024, 0x10081020, 0x10081024, + 0x10080020, 0x10080024, 0x10081020, 0x10081024, + 0x20000000, 0x20000004, 0x20001000, 0x20001004, + 0x20000000, 0x20000004, 0x20001000, 0x20001004, + 0x30000000, 0x30000004, 0x30001000, 0x30001004, + 0x30000000, 0x30000004, 0x30001000, 0x30001004, + 0x20000020, 0x20000024, 0x20001020, 0x20001024, + 0x20000020, 0x20000024, 0x20001020, 0x20001024, + 0x30000020, 0x30000024, 0x30001020, 0x30001024, + 0x30000020, 0x30000024, 0x30001020, 0x30001024, + 0x20080000, 0x20080004, 0x20081000, 0x20081004, + 0x20080000, 0x20080004, 0x20081000, 0x20081004, + 0x30080000, 0x30080004, 0x30081000, 0x30081004, + 0x30080000, 0x30080004, 0x30081000, 0x30081004, + 0x20080020, 0x20080024, 0x20081020, 0x20081024, + 0x20080020, 0x20080024, 0x20081020, 0x20081024, + 0x30080020, 0x30080024, 0x30081020, 0x30081024, + 0x30080020, 0x30080024, 0x30081020, 0x30081024, + 0x00000002, 0x00000006, 0x00001002, 0x00001006, + 0x00000002, 0x00000006, 0x00001002, 0x00001006, + 0x10000002, 0x10000006, 0x10001002, 0x10001006, + 0x10000002, 0x10000006, 0x10001002, 0x10001006, + 0x00000022, 0x00000026, 0x00001022, 0x00001026, + 0x00000022, 0x00000026, 0x00001022, 0x00001026, + 0x10000022, 0x10000026, 0x10001022, 0x10001026, + 0x10000022, 0x10000026, 0x10001022, 0x10001026, + 0x00080002, 0x00080006, 0x00081002, 0x00081006, + 0x00080002, 0x00080006, 0x00081002, 0x00081006, + 0x10080002, 0x10080006, 0x10081002, 0x10081006, + 0x10080002, 0x10080006, 0x10081002, 0x10081006, + 0x00080022, 0x00080026, 0x00081022, 0x00081026, + 0x00080022, 0x00080026, 0x00081022, 0x00081026, + 0x10080022, 0x10080026, 0x10081022, 0x10081026, + 0x10080022, 0x10080026, 0x10081022, 0x10081026, + 0x20000002, 0x20000006, 0x20001002, 0x20001006, + 0x20000002, 0x20000006, 0x20001002, 0x20001006, + 0x30000002, 0x30000006, 0x30001002, 0x30001006, + 0x30000002, 0x30000006, 0x30001002, 0x30001006, + 0x20000022, 0x20000026, 0x20001022, 0x20001026, + 0x20000022, 0x20000026, 0x20001022, 0x20001026, + 0x30000022, 0x30000026, 0x30001022, 0x30001026, + 0x30000022, 0x30000026, 0x30001022, 0x30001026, + 0x20080002, 0x20080006, 0x20081002, 0x20081006, + 0x20080002, 0x20080006, 0x20081002, 0x20081006, + 0x30080002, 0x30080006, 0x30081002, 0x30081006, + 0x30080002, 0x30080006, 0x30081002, 0x30081006, + 0x20080022, 0x20080026, 0x20081022, 0x20081026, + 0x20080022, 0x20080026, 0x20081022, 0x20081026, + 0x30080022, 0x30080026, 0x30081022, 0x30081026, + 0x30080022, 0x30080026, 0x30081022, 0x30081026 + ); + static $pc2mapc4 = array( + 0x00000000, 0x00100000, 0x00000008, 0x00100008, + 0x00000200, 0x00100200, 0x00000208, 0x00100208, + 0x00000000, 0x00100000, 0x00000008, 0x00100008, + 0x00000200, 0x00100200, 0x00000208, 0x00100208, + 0x04000000, 0x04100000, 0x04000008, 0x04100008, + 0x04000200, 0x04100200, 0x04000208, 0x04100208, + 0x04000000, 0x04100000, 0x04000008, 0x04100008, + 0x04000200, 0x04100200, 0x04000208, 0x04100208, + 0x00002000, 0x00102000, 0x00002008, 0x00102008, + 0x00002200, 0x00102200, 0x00002208, 0x00102208, + 0x00002000, 0x00102000, 0x00002008, 0x00102008, + 0x00002200, 0x00102200, 0x00002208, 0x00102208, + 0x04002000, 0x04102000, 0x04002008, 0x04102008, + 0x04002200, 0x04102200, 0x04002208, 0x04102208, + 0x04002000, 0x04102000, 0x04002008, 0x04102008, + 0x04002200, 0x04102200, 0x04002208, 0x04102208, + 0x00000000, 0x00100000, 0x00000008, 0x00100008, + 0x00000200, 0x00100200, 0x00000208, 0x00100208, + 0x00000000, 0x00100000, 0x00000008, 0x00100008, + 0x00000200, 0x00100200, 0x00000208, 0x00100208, + 0x04000000, 0x04100000, 0x04000008, 0x04100008, + 0x04000200, 0x04100200, 0x04000208, 0x04100208, + 0x04000000, 0x04100000, 0x04000008, 0x04100008, + 0x04000200, 0x04100200, 0x04000208, 0x04100208, + 0x00002000, 0x00102000, 0x00002008, 0x00102008, + 0x00002200, 0x00102200, 0x00002208, 0x00102208, + 0x00002000, 0x00102000, 0x00002008, 0x00102008, + 0x00002200, 0x00102200, 0x00002208, 0x00102208, + 0x04002000, 0x04102000, 0x04002008, 0x04102008, + 0x04002200, 0x04102200, 0x04002208, 0x04102208, + 0x04002000, 0x04102000, 0x04002008, 0x04102008, + 0x04002200, 0x04102200, 0x04002208, 0x04102208, + 0x00020000, 0x00120000, 0x00020008, 0x00120008, + 0x00020200, 0x00120200, 0x00020208, 0x00120208, + 0x00020000, 0x00120000, 0x00020008, 0x00120008, + 0x00020200, 0x00120200, 0x00020208, 0x00120208, + 0x04020000, 0x04120000, 0x04020008, 0x04120008, + 0x04020200, 0x04120200, 0x04020208, 0x04120208, + 0x04020000, 0x04120000, 0x04020008, 0x04120008, + 0x04020200, 0x04120200, 0x04020208, 0x04120208, + 0x00022000, 0x00122000, 0x00022008, 0x00122008, + 0x00022200, 0x00122200, 0x00022208, 0x00122208, + 0x00022000, 0x00122000, 0x00022008, 0x00122008, + 0x00022200, 0x00122200, 0x00022208, 0x00122208, + 0x04022000, 0x04122000, 0x04022008, 0x04122008, + 0x04022200, 0x04122200, 0x04022208, 0x04122208, + 0x04022000, 0x04122000, 0x04022008, 0x04122008, + 0x04022200, 0x04122200, 0x04022208, 0x04122208, + 0x00020000, 0x00120000, 0x00020008, 0x00120008, + 0x00020200, 0x00120200, 0x00020208, 0x00120208, + 0x00020000, 0x00120000, 0x00020008, 0x00120008, + 0x00020200, 0x00120200, 0x00020208, 0x00120208, + 0x04020000, 0x04120000, 0x04020008, 0x04120008, + 0x04020200, 0x04120200, 0x04020208, 0x04120208, + 0x04020000, 0x04120000, 0x04020008, 0x04120008, + 0x04020200, 0x04120200, 0x04020208, 0x04120208, + 0x00022000, 0x00122000, 0x00022008, 0x00122008, + 0x00022200, 0x00122200, 0x00022208, 0x00122208, + 0x00022000, 0x00122000, 0x00022008, 0x00122008, + 0x00022200, 0x00122200, 0x00022208, 0x00122208, + 0x04022000, 0x04122000, 0x04022008, 0x04122008, + 0x04022200, 0x04122200, 0x04022208, 0x04122208, + 0x04022000, 0x04122000, 0x04022008, 0x04122008, + 0x04022200, 0x04122200, 0x04022208, 0x04122208 + ); + static $pc2mapd1 = array( + 0x00000000, 0x00000001, 0x08000000, 0x08000001, + 0x00200000, 0x00200001, 0x08200000, 0x08200001, + 0x00000002, 0x00000003, 0x08000002, 0x08000003, + 0x00200002, 0x00200003, 0x08200002, 0x08200003 + ); + static $pc2mapd2 = array( + 0x00000000, 0x00100000, 0x00000800, 0x00100800, + 0x00000000, 0x00100000, 0x00000800, 0x00100800, + 0x04000000, 0x04100000, 0x04000800, 0x04100800, + 0x04000000, 0x04100000, 0x04000800, 0x04100800, + 0x00000004, 0x00100004, 0x00000804, 0x00100804, + 0x00000004, 0x00100004, 0x00000804, 0x00100804, + 0x04000004, 0x04100004, 0x04000804, 0x04100804, + 0x04000004, 0x04100004, 0x04000804, 0x04100804, + 0x00000000, 0x00100000, 0x00000800, 0x00100800, + 0x00000000, 0x00100000, 0x00000800, 0x00100800, + 0x04000000, 0x04100000, 0x04000800, 0x04100800, + 0x04000000, 0x04100000, 0x04000800, 0x04100800, + 0x00000004, 0x00100004, 0x00000804, 0x00100804, + 0x00000004, 0x00100004, 0x00000804, 0x00100804, + 0x04000004, 0x04100004, 0x04000804, 0x04100804, + 0x04000004, 0x04100004, 0x04000804, 0x04100804, + 0x00000200, 0x00100200, 0x00000A00, 0x00100A00, + 0x00000200, 0x00100200, 0x00000A00, 0x00100A00, + 0x04000200, 0x04100200, 0x04000A00, 0x04100A00, + 0x04000200, 0x04100200, 0x04000A00, 0x04100A00, + 0x00000204, 0x00100204, 0x00000A04, 0x00100A04, + 0x00000204, 0x00100204, 0x00000A04, 0x00100A04, + 0x04000204, 0x04100204, 0x04000A04, 0x04100A04, + 0x04000204, 0x04100204, 0x04000A04, 0x04100A04, + 0x00000200, 0x00100200, 0x00000A00, 0x00100A00, + 0x00000200, 0x00100200, 0x00000A00, 0x00100A00, + 0x04000200, 0x04100200, 0x04000A00, 0x04100A00, + 0x04000200, 0x04100200, 0x04000A00, 0x04100A00, + 0x00000204, 0x00100204, 0x00000A04, 0x00100A04, + 0x00000204, 0x00100204, 0x00000A04, 0x00100A04, + 0x04000204, 0x04100204, 0x04000A04, 0x04100A04, + 0x04000204, 0x04100204, 0x04000A04, 0x04100A04, + 0x00020000, 0x00120000, 0x00020800, 0x00120800, + 0x00020000, 0x00120000, 0x00020800, 0x00120800, + 0x04020000, 0x04120000, 0x04020800, 0x04120800, + 0x04020000, 0x04120000, 0x04020800, 0x04120800, + 0x00020004, 0x00120004, 0x00020804, 0x00120804, + 0x00020004, 0x00120004, 0x00020804, 0x00120804, + 0x04020004, 0x04120004, 0x04020804, 0x04120804, + 0x04020004, 0x04120004, 0x04020804, 0x04120804, + 0x00020000, 0x00120000, 0x00020800, 0x00120800, + 0x00020000, 0x00120000, 0x00020800, 0x00120800, + 0x04020000, 0x04120000, 0x04020800, 0x04120800, + 0x04020000, 0x04120000, 0x04020800, 0x04120800, + 0x00020004, 0x00120004, 0x00020804, 0x00120804, + 0x00020004, 0x00120004, 0x00020804, 0x00120804, + 0x04020004, 0x04120004, 0x04020804, 0x04120804, + 0x04020004, 0x04120004, 0x04020804, 0x04120804, + 0x00020200, 0x00120200, 0x00020A00, 0x00120A00, + 0x00020200, 0x00120200, 0x00020A00, 0x00120A00, + 0x04020200, 0x04120200, 0x04020A00, 0x04120A00, + 0x04020200, 0x04120200, 0x04020A00, 0x04120A00, + 0x00020204, 0x00120204, 0x00020A04, 0x00120A04, + 0x00020204, 0x00120204, 0x00020A04, 0x00120A04, + 0x04020204, 0x04120204, 0x04020A04, 0x04120A04, + 0x04020204, 0x04120204, 0x04020A04, 0x04120A04, + 0x00020200, 0x00120200, 0x00020A00, 0x00120A00, + 0x00020200, 0x00120200, 0x00020A00, 0x00120A00, + 0x04020200, 0x04120200, 0x04020A00, 0x04120A00, + 0x04020200, 0x04120200, 0x04020A00, 0x04120A00, + 0x00020204, 0x00120204, 0x00020A04, 0x00120A04, + 0x00020204, 0x00120204, 0x00020A04, 0x00120A04, + 0x04020204, 0x04120204, 0x04020A04, 0x04120A04, + 0x04020204, 0x04120204, 0x04020A04, 0x04120A04 + ); + static $pc2mapd3 = array( + 0x00000000, 0x00010000, 0x02000000, 0x02010000, + 0x00000020, 0x00010020, 0x02000020, 0x02010020, + 0x00040000, 0x00050000, 0x02040000, 0x02050000, + 0x00040020, 0x00050020, 0x02040020, 0x02050020, + 0x00002000, 0x00012000, 0x02002000, 0x02012000, + 0x00002020, 0x00012020, 0x02002020, 0x02012020, + 0x00042000, 0x00052000, 0x02042000, 0x02052000, + 0x00042020, 0x00052020, 0x02042020, 0x02052020, + 0x00000000, 0x00010000, 0x02000000, 0x02010000, + 0x00000020, 0x00010020, 0x02000020, 0x02010020, + 0x00040000, 0x00050000, 0x02040000, 0x02050000, + 0x00040020, 0x00050020, 0x02040020, 0x02050020, + 0x00002000, 0x00012000, 0x02002000, 0x02012000, + 0x00002020, 0x00012020, 0x02002020, 0x02012020, + 0x00042000, 0x00052000, 0x02042000, 0x02052000, + 0x00042020, 0x00052020, 0x02042020, 0x02052020, + 0x00000010, 0x00010010, 0x02000010, 0x02010010, + 0x00000030, 0x00010030, 0x02000030, 0x02010030, + 0x00040010, 0x00050010, 0x02040010, 0x02050010, + 0x00040030, 0x00050030, 0x02040030, 0x02050030, + 0x00002010, 0x00012010, 0x02002010, 0x02012010, + 0x00002030, 0x00012030, 0x02002030, 0x02012030, + 0x00042010, 0x00052010, 0x02042010, 0x02052010, + 0x00042030, 0x00052030, 0x02042030, 0x02052030, + 0x00000010, 0x00010010, 0x02000010, 0x02010010, + 0x00000030, 0x00010030, 0x02000030, 0x02010030, + 0x00040010, 0x00050010, 0x02040010, 0x02050010, + 0x00040030, 0x00050030, 0x02040030, 0x02050030, + 0x00002010, 0x00012010, 0x02002010, 0x02012010, + 0x00002030, 0x00012030, 0x02002030, 0x02012030, + 0x00042010, 0x00052010, 0x02042010, 0x02052010, + 0x00042030, 0x00052030, 0x02042030, 0x02052030, + 0x20000000, 0x20010000, 0x22000000, 0x22010000, + 0x20000020, 0x20010020, 0x22000020, 0x22010020, + 0x20040000, 0x20050000, 0x22040000, 0x22050000, + 0x20040020, 0x20050020, 0x22040020, 0x22050020, + 0x20002000, 0x20012000, 0x22002000, 0x22012000, + 0x20002020, 0x20012020, 0x22002020, 0x22012020, + 0x20042000, 0x20052000, 0x22042000, 0x22052000, + 0x20042020, 0x20052020, 0x22042020, 0x22052020, + 0x20000000, 0x20010000, 0x22000000, 0x22010000, + 0x20000020, 0x20010020, 0x22000020, 0x22010020, + 0x20040000, 0x20050000, 0x22040000, 0x22050000, + 0x20040020, 0x20050020, 0x22040020, 0x22050020, + 0x20002000, 0x20012000, 0x22002000, 0x22012000, + 0x20002020, 0x20012020, 0x22002020, 0x22012020, + 0x20042000, 0x20052000, 0x22042000, 0x22052000, + 0x20042020, 0x20052020, 0x22042020, 0x22052020, + 0x20000010, 0x20010010, 0x22000010, 0x22010010, + 0x20000030, 0x20010030, 0x22000030, 0x22010030, + 0x20040010, 0x20050010, 0x22040010, 0x22050010, + 0x20040030, 0x20050030, 0x22040030, 0x22050030, + 0x20002010, 0x20012010, 0x22002010, 0x22012010, + 0x20002030, 0x20012030, 0x22002030, 0x22012030, + 0x20042010, 0x20052010, 0x22042010, 0x22052010, + 0x20042030, 0x20052030, 0x22042030, 0x22052030, + 0x20000010, 0x20010010, 0x22000010, 0x22010010, + 0x20000030, 0x20010030, 0x22000030, 0x22010030, + 0x20040010, 0x20050010, 0x22040010, 0x22050010, + 0x20040030, 0x20050030, 0x22040030, 0x22050030, + 0x20002010, 0x20012010, 0x22002010, 0x22012010, + 0x20002030, 0x20012030, 0x22002030, 0x22012030, + 0x20042010, 0x20052010, 0x22042010, 0x22052010, + 0x20042030, 0x20052030, 0x22042030, 0x22052030 + ); + static $pc2mapd4 = array( + 0x00000000, 0x00000400, 0x01000000, 0x01000400, + 0x00000000, 0x00000400, 0x01000000, 0x01000400, + 0x00000100, 0x00000500, 0x01000100, 0x01000500, + 0x00000100, 0x00000500, 0x01000100, 0x01000500, + 0x10000000, 0x10000400, 0x11000000, 0x11000400, + 0x10000000, 0x10000400, 0x11000000, 0x11000400, + 0x10000100, 0x10000500, 0x11000100, 0x11000500, + 0x10000100, 0x10000500, 0x11000100, 0x11000500, + 0x00080000, 0x00080400, 0x01080000, 0x01080400, + 0x00080000, 0x00080400, 0x01080000, 0x01080400, + 0x00080100, 0x00080500, 0x01080100, 0x01080500, + 0x00080100, 0x00080500, 0x01080100, 0x01080500, + 0x10080000, 0x10080400, 0x11080000, 0x11080400, + 0x10080000, 0x10080400, 0x11080000, 0x11080400, + 0x10080100, 0x10080500, 0x11080100, 0x11080500, + 0x10080100, 0x10080500, 0x11080100, 0x11080500, + 0x00000008, 0x00000408, 0x01000008, 0x01000408, + 0x00000008, 0x00000408, 0x01000008, 0x01000408, + 0x00000108, 0x00000508, 0x01000108, 0x01000508, + 0x00000108, 0x00000508, 0x01000108, 0x01000508, + 0x10000008, 0x10000408, 0x11000008, 0x11000408, + 0x10000008, 0x10000408, 0x11000008, 0x11000408, + 0x10000108, 0x10000508, 0x11000108, 0x11000508, + 0x10000108, 0x10000508, 0x11000108, 0x11000508, + 0x00080008, 0x00080408, 0x01080008, 0x01080408, + 0x00080008, 0x00080408, 0x01080008, 0x01080408, + 0x00080108, 0x00080508, 0x01080108, 0x01080508, + 0x00080108, 0x00080508, 0x01080108, 0x01080508, + 0x10080008, 0x10080408, 0x11080008, 0x11080408, + 0x10080008, 0x10080408, 0x11080008, 0x11080408, + 0x10080108, 0x10080508, 0x11080108, 0x11080508, + 0x10080108, 0x10080508, 0x11080108, 0x11080508, + 0x00001000, 0x00001400, 0x01001000, 0x01001400, + 0x00001000, 0x00001400, 0x01001000, 0x01001400, + 0x00001100, 0x00001500, 0x01001100, 0x01001500, + 0x00001100, 0x00001500, 0x01001100, 0x01001500, + 0x10001000, 0x10001400, 0x11001000, 0x11001400, + 0x10001000, 0x10001400, 0x11001000, 0x11001400, + 0x10001100, 0x10001500, 0x11001100, 0x11001500, + 0x10001100, 0x10001500, 0x11001100, 0x11001500, + 0x00081000, 0x00081400, 0x01081000, 0x01081400, + 0x00081000, 0x00081400, 0x01081000, 0x01081400, + 0x00081100, 0x00081500, 0x01081100, 0x01081500, + 0x00081100, 0x00081500, 0x01081100, 0x01081500, + 0x10081000, 0x10081400, 0x11081000, 0x11081400, + 0x10081000, 0x10081400, 0x11081000, 0x11081400, + 0x10081100, 0x10081500, 0x11081100, 0x11081500, + 0x10081100, 0x10081500, 0x11081100, 0x11081500, + 0x00001008, 0x00001408, 0x01001008, 0x01001408, + 0x00001008, 0x00001408, 0x01001008, 0x01001408, + 0x00001108, 0x00001508, 0x01001108, 0x01001508, + 0x00001108, 0x00001508, 0x01001108, 0x01001508, + 0x10001008, 0x10001408, 0x11001008, 0x11001408, + 0x10001008, 0x10001408, 0x11001008, 0x11001408, + 0x10001108, 0x10001508, 0x11001108, 0x11001508, + 0x10001108, 0x10001508, 0x11001108, 0x11001508, + 0x00081008, 0x00081408, 0x01081008, 0x01081408, + 0x00081008, 0x00081408, 0x01081008, 0x01081408, + 0x00081108, 0x00081508, 0x01081108, 0x01081508, + 0x00081108, 0x00081508, 0x01081108, 0x01081508, + 0x10081008, 0x10081408, 0x11081008, 0x11081408, + 0x10081008, 0x10081408, 0x11081008, 0x11081408, + 0x10081108, 0x10081508, 0x11081108, 0x11081508, + 0x10081108, 0x10081508, 0x11081108, 0x11081508 + ); $keys = array(); - for ($i = 0; $i < 16; $i++) { - $key[0] <<= $shifts[$i]; - $temp = ($key[0] & 0xF0000000) >> 28; - $key[0] = ($key[0] | $temp) & 0x0FFFFFFF; + for ($des_round = 0; $des_round < $this->des_rounds; ++$des_round) { + // pad the key and remove extra characters as appropriate. + $key = str_pad(substr($this->key, $des_round * 8, 8), 8, "\0"); - $key[1] <<= $shifts[$i]; - $temp = ($key[1] & 0xF0000000) >> 28; - $key[1] = ($key[1] | $temp) & 0x0FFFFFFF; + // Perform the PC/1 transformation and compute C and D. + $t = unpack('Nl/Nr', $key); + list($l, $r) = array($t['l'], $t['r']); + $key = ($this->shuffle[$pc1map[ $r & 0xFF]] & "\x80\x80\x80\x80\x80\x80\x80\x00") | + ($this->shuffle[$pc1map[($r >> 8) & 0xFF]] & "\x40\x40\x40\x40\x40\x40\x40\x00") | + ($this->shuffle[$pc1map[($r >> 16) & 0xFF]] & "\x20\x20\x20\x20\x20\x20\x20\x00") | + ($this->shuffle[$pc1map[($r >> 24) & 0xFF]] & "\x10\x10\x10\x10\x10\x10\x10\x00") | + ($this->shuffle[$pc1map[ $l & 0xFF]] & "\x08\x08\x08\x08\x08\x08\x08\x00") | + ($this->shuffle[$pc1map[($l >> 8) & 0xFF]] & "\x04\x04\x04\x04\x04\x04\x04\x00") | + ($this->shuffle[$pc1map[($l >> 16) & 0xFF]] & "\x02\x02\x02\x02\x02\x02\x02\x00") | + ($this->shuffle[$pc1map[($l >> 24) & 0xFF]] & "\x01\x01\x01\x01\x01\x01\x01\x00"); + $key = unpack('Nc/Nd', $key); + $c = ( $key['c'] >> 4) & 0x0FFFFFFF; + $d = (($key['d'] >> 4) & 0x0FFFFFF0) | ($key['c'] & 0x0F); - $temp = array( - (($key[1] & 0x00004000) >> 9) | (($key[1] & 0x00000800) >> 7) | - (($key[1] & 0x00020000) >> 14) | (($key[1] & 0x00000010) >> 2) | - (($key[1] & 0x08000000) >> 26) | (($key[1] & 0x00800000) >> 23) - , - (($key[1] & 0x02400000) >> 20) | (($key[1] & 0x00000001) << 4) | - (($key[1] & 0x00002000) >> 10) | (($key[1] & 0x00040000) >> 18) | - (($key[1] & 0x00000080) >> 6) - , - ( $key[1] & 0x00000020 ) | (($key[1] & 0x00000200) >> 5) | - (($key[1] & 0x00010000) >> 13) | (($key[1] & 0x01000000) >> 22) | - (($key[1] & 0x00000004) >> 1) | (($key[1] & 0x00100000) >> 20) - , - (($key[1] & 0x00001000) >> 7) | (($key[1] & 0x00200000) >> 17) | - (($key[1] & 0x00000002) << 2) | (($key[1] & 0x00000100) >> 6) | - (($key[1] & 0x00008000) >> 14) | (($key[1] & 0x04000000) >> 26) - , - (($key[0] & 0x00008000) >> 10) | ( $key[0] & 0x00000010 ) | - (($key[0] & 0x02000000) >> 22) | (($key[0] & 0x00080000) >> 17) | - (($key[0] & 0x00000200) >> 8) | (($key[0] & 0x00000002) >> 1) - , - (($key[0] & 0x04000000) >> 21) | (($key[0] & 0x00010000) >> 12) | - (($key[0] & 0x00000020) >> 2) | (($key[0] & 0x00000800) >> 9) | - (($key[0] & 0x00800000) >> 22) | (($key[0] & 0x00000100) >> 8) - , - (($key[0] & 0x00001000) >> 7) | (($key[0] & 0x00000088) >> 3) | - (($key[0] & 0x00020000) >> 14) | (($key[0] & 0x00000001) << 2) | - (($key[0] & 0x00400000) >> 21) - , - (($key[0] & 0x00000400) >> 5) | (($key[0] & 0x00004000) >> 10) | - (($key[0] & 0x00000040) >> 3) | (($key[0] & 0x00100000) >> 18) | - (($key[0] & 0x08000000) >> 26) | (($key[0] & 0x01000000) >> 24) + $keys[$des_round] = array( + CRYPT_DES_ENCRYPT => array(), + CRYPT_DES_DECRYPT => array_fill(0, 32, 0) ); + for ($i = 0, $ki = 31; $i < 16; ++$i, $ki-= 2) { + $c <<= $shifts[$i]; + $c = ($c | ($c >> 28)) & 0x0FFFFFFF; + $d <<= $shifts[$i]; + $d = ($d | ($d >> 28)) & 0x0FFFFFFF; - $keys[] = $temp; + // Perform the PC-2 transformation. + $cp = $pc2mapc1[ $c >> 24 ] | $pc2mapc2[($c >> 16) & 0xFF] | + $pc2mapc3[($c >> 8) & 0xFF] | $pc2mapc4[ $c & 0xFF]; + $dp = $pc2mapd1[ $d >> 24 ] | $pc2mapd2[($d >> 16) & 0xFF] | + $pc2mapd3[($d >> 8) & 0xFF] | $pc2mapd4[ $d & 0xFF]; + + // Reorder: odd bytes/even bytes. Push the result in key schedule. + $val1 = ( $cp & 0xFF000000) | (($cp << 8) & 0x00FF0000) | + (($dp >> 16) & 0x0000FF00) | (($dp >> 8) & 0x000000FF); + $val2 = (($cp << 8) & 0xFF000000) | (($cp << 16) & 0x00FF0000) | + (($dp >> 8) & 0x0000FF00) | ( $dp & 0x000000FF); + $keys[$des_round][CRYPT_DES_ENCRYPT][ ] = $val1; + $keys[$des_round][CRYPT_DES_DECRYPT][$ki - 1] = $val1; + $keys[$des_round][CRYPT_DES_ENCRYPT][ ] = $val2; + $keys[$des_round][CRYPT_DES_DECRYPT][$ki ] = $val2; + } } - $temp = array( - CRYPT_DES_ENCRYPT => $keys, - CRYPT_DES_DECRYPT => array_reverse($keys) - ); - - return $temp; + switch ($this->des_rounds) { + case 3: // 3DES keys + $this->keys = array( + CRYPT_DES_ENCRYPT => array_merge( + $keys[0][CRYPT_DES_ENCRYPT], + $keys[1][CRYPT_DES_DECRYPT], + $keys[2][CRYPT_DES_ENCRYPT] + ), + CRYPT_DES_DECRYPT => array_merge( + $keys[2][CRYPT_DES_DECRYPT], + $keys[1][CRYPT_DES_ENCRYPT], + $keys[0][CRYPT_DES_DECRYPT] + ) + ); + break; + // case 1: // DES keys + default: + $this->keys = array( + CRYPT_DES_ENCRYPT => $keys[0][CRYPT_DES_ENCRYPT], + CRYPT_DES_DECRYPT => $keys[0][CRYPT_DES_DECRYPT] + ); + } } /** - * String Shift + * Setup the performance-optimized function for de/encrypt() * - * Inspired by array_shift - * - * @param String $string - * @param optional Integer $index - * @return String + * @see Crypt_Base::_setupInlineCrypt() * @access private */ - function _string_shift(&$string, $index = 1) + function _setupInlineCrypt() { - $substr = substr($string, 0, $index); - $string = substr($string, $index); - return $substr; + $lambda_functions =& Crypt_DES::_getLambdaFunctions(); + + // Engine configuration for: + // - DES ($des_rounds == 1) or + // - 3DES ($des_rounds == 3) + $des_rounds = $this->des_rounds; + + // We create max. 10 hi-optimized code for memory reason. Means: For each $key one ultra fast inline-crypt function. + // After that, we'll still create very fast optimized code but not the hi-ultimative code, for each $mode one + $gen_hi_opt_code = (bool)( count($lambda_functions) < 10 ); + + // Generation of a uniqe hash for our generated code + switch (true) { + case $gen_hi_opt_code: + // For hi-optimized code, we create for each combination of + // $mode, $des_rounds and $this->key its own encrypt/decrypt function. + $code_hash = md5(str_pad("Crypt_DES, $des_rounds, {$this->mode}, ", 32, "\0") . $this->key); + break; + default: + // After max 10 hi-optimized functions, we create generic + // (still very fast.. but not ultra) functions for each $mode/$des_rounds + // Currently 2 * 5 generic functions will be then max. possible. + $code_hash = "Crypt_DES, $des_rounds, {$this->mode}"; + } + + // Is there a re-usable $lambda_functions in there? If not, we have to create it. + if (!isset($lambda_functions[$code_hash])) { + // Init code for both, encrypt and decrypt. + $init_crypt = 'static $sbox1, $sbox2, $sbox3, $sbox4, $sbox5, $sbox6, $sbox7, $sbox8, $shuffleip, $shuffleinvip; + if (!$sbox1) { + $sbox1 = array_map("intval", $self->sbox1); + $sbox2 = array_map("intval", $self->sbox2); + $sbox3 = array_map("intval", $self->sbox3); + $sbox4 = array_map("intval", $self->sbox4); + $sbox5 = array_map("intval", $self->sbox5); + $sbox6 = array_map("intval", $self->sbox6); + $sbox7 = array_map("intval", $self->sbox7); + $sbox8 = array_map("intval", $self->sbox8);' + /* Merge $shuffle with $[inv]ipmap */ . ' + for ($i = 0; $i < 256; ++$i) { + $shuffleip[] = $self->shuffle[$self->ipmap[$i]]; + $shuffleinvip[] = $self->shuffle[$self->invipmap[$i]]; + } + } + '; + + switch (true) { + case $gen_hi_opt_code: + // In Hi-optimized code mode, we use our [3]DES key schedule as hardcoded integers. + // No futher initialisation of the $keys schedule is necessary. + // That is the extra performance boost. + $k = array( + CRYPT_DES_ENCRYPT => $this->keys[CRYPT_DES_ENCRYPT], + CRYPT_DES_DECRYPT => $this->keys[CRYPT_DES_DECRYPT] + ); + $init_encrypt = ''; + $init_decrypt = ''; + break; + default: + // In generic optimized code mode, we have to use, as the best compromise [currently], + // our key schedule as $ke/$kd arrays. (with hardcoded indexes...) + $k = array( + CRYPT_DES_ENCRYPT => array(), + CRYPT_DES_DECRYPT => array() + ); + for ($i = 0, $c = count($this->keys[CRYPT_DES_ENCRYPT]); $i < $c; ++$i) { + $k[CRYPT_DES_ENCRYPT][$i] = '$ke[' . $i . ']'; + $k[CRYPT_DES_DECRYPT][$i] = '$kd[' . $i . ']'; + } + $init_encrypt = '$ke = $self->keys[CRYPT_DES_ENCRYPT];'; + $init_decrypt = '$kd = $self->keys[CRYPT_DES_DECRYPT];'; + break; + } + + // Creating code for en- and decryption. + $crypt_block = array(); + foreach (array(CRYPT_DES_ENCRYPT, CRYPT_DES_DECRYPT) as $c) { + + /* Do the initial IP permutation. */ + $crypt_block[$c] = ' + $in = unpack("N*", $in); + $l = $in[1]; + $r = $in[2]; + $in = unpack("N*", + ($shuffleip[ $r & 0xFF] & "\x80\x80\x80\x80\x80\x80\x80\x80") | + ($shuffleip[($r >> 8) & 0xFF] & "\x40\x40\x40\x40\x40\x40\x40\x40") | + ($shuffleip[($r >> 16) & 0xFF] & "\x20\x20\x20\x20\x20\x20\x20\x20") | + ($shuffleip[($r >> 24) & 0xFF] & "\x10\x10\x10\x10\x10\x10\x10\x10") | + ($shuffleip[ $l & 0xFF] & "\x08\x08\x08\x08\x08\x08\x08\x08") | + ($shuffleip[($l >> 8) & 0xFF] & "\x04\x04\x04\x04\x04\x04\x04\x04") | + ($shuffleip[($l >> 16) & 0xFF] & "\x02\x02\x02\x02\x02\x02\x02\x02") | + ($shuffleip[($l >> 24) & 0xFF] & "\x01\x01\x01\x01\x01\x01\x01\x01") + ); + ' . /* Extract L0 and R0 */ ' + $l = $in[1]; + $r = $in[2]; + '; + + $l = '$l'; + $r = '$r'; + + // Perform DES or 3DES. + for ($ki = -1, $des_round = 0; $des_round < $des_rounds; ++$des_round) { + // Perform the 16 steps. + for ($i = 0; $i < 16; ++$i) { + // start of "the Feistel (F) function" - see the following URL: + // http://en.wikipedia.org/wiki/Image:Data_Encryption_Standard_InfoBox_Diagram.png + // Merge key schedule. + $crypt_block[$c].= ' + $b1 = ((' . $r . ' >> 3) & 0x1FFFFFFF) ^ (' . $r . ' << 29) ^ ' . $k[$c][++$ki] . '; + $b2 = ((' . $r . ' >> 31) & 0x00000001) ^ (' . $r . ' << 1) ^ ' . $k[$c][++$ki] . ';' . + /* S-box indexing. */ + $l . ' = $sbox1[($b1 >> 24) & 0x3F] ^ $sbox2[($b2 >> 24) & 0x3F] ^ + $sbox3[($b1 >> 16) & 0x3F] ^ $sbox4[($b2 >> 16) & 0x3F] ^ + $sbox5[($b1 >> 8) & 0x3F] ^ $sbox6[($b2 >> 8) & 0x3F] ^ + $sbox7[ $b1 & 0x3F] ^ $sbox8[ $b2 & 0x3F] ^ ' . $l . '; + '; + // end of "the Feistel (F) function" + + // swap L & R + list($l, $r) = array($r, $l); + } + list($l, $r) = array($r, $l); + } + + // Perform the inverse IP permutation. + $crypt_block[$c].= '$in = + ($shuffleinvip[($l >> 24) & 0xFF] & "\x80\x80\x80\x80\x80\x80\x80\x80") | + ($shuffleinvip[($r >> 24) & 0xFF] & "\x40\x40\x40\x40\x40\x40\x40\x40") | + ($shuffleinvip[($l >> 16) & 0xFF] & "\x20\x20\x20\x20\x20\x20\x20\x20") | + ($shuffleinvip[($r >> 16) & 0xFF] & "\x10\x10\x10\x10\x10\x10\x10\x10") | + ($shuffleinvip[($l >> 8) & 0xFF] & "\x08\x08\x08\x08\x08\x08\x08\x08") | + ($shuffleinvip[($r >> 8) & 0xFF] & "\x04\x04\x04\x04\x04\x04\x04\x04") | + ($shuffleinvip[ $l & 0xFF] & "\x02\x02\x02\x02\x02\x02\x02\x02") | + ($shuffleinvip[ $r & 0xFF] & "\x01\x01\x01\x01\x01\x01\x01\x01"); + '; + } + + // Creates the inline-crypt function + $lambda_functions[$code_hash] = $this->_createInlineCryptFunction( + array( + 'init_crypt' => $init_crypt, + 'init_encrypt' => $init_encrypt, + 'init_decrypt' => $init_decrypt, + 'encrypt_block' => $crypt_block[CRYPT_DES_ENCRYPT], + 'decrypt_block' => $crypt_block[CRYPT_DES_DECRYPT] + ) + ); + } + + // Set the inline-crypt function as callback in: $this->inline_crypt + $this->inline_crypt = $lambda_functions[$code_hash]; } } - -// vim: ts=4:sw=4:et: -// vim6: fdl=1: \ No newline at end of file diff --git a/lam/lib/3rdParty/phpseclib/Crypt/Hash.php b/lam/lib/3rdParty/phpseclib/Crypt/Hash.php index 9ac22aec..b156169d 100644 --- a/lam/lib/3rdParty/phpseclib/Crypt/Hash.php +++ b/lam/lib/3rdParty/phpseclib/Crypt/Hash.php @@ -1,5 +1,4 @@ - * @copyright MMVII Jim Wigginton - * @license http://www.opensource.org/licenses/mit-license.html MIT License - * @version $Id$ - * @link http://phpseclib.sourceforge.net + * @category Crypt + * @package Crypt_Hash + * @author Jim Wigginton + * @copyright MMVII Jim Wigginton + * @license http://www.opensource.org/licenses/mit-license.html MIT License + * @link http://phpseclib.sourceforge.net */ /**#@+ @@ -77,12 +75,22 @@ define('CRYPT_HASH_MODE_HASH', 3); /** * Pure-PHP implementations of keyed-hash message authentication codes (HMACs) and various cryptographic hashing functions. * + * @package Crypt_Hash * @author Jim Wigginton * @version 0.1.0 * @access public - * @package Crypt_Hash */ -class Crypt_Hash { +class Crypt_Hash +{ + /** + * Hash Parameter + * + * @see Crypt_Hash::setHash() + * @var Integer + * @access private + */ + var $hashParam; + /** * Byte-length of compression blocks / key (Internal HMAC) * @@ -117,7 +125,7 @@ class Crypt_Hash { * @var String * @access private */ - var $key = ''; + var $key = false; /** * Outer XOR (Internal HMAC) @@ -168,13 +176,26 @@ class Crypt_Hash { * Keys can be of any length. * * @access public - * @param String $key + * @param optional String $key */ - function setKey($key) + function setKey($key = false) { $this->key = $key; } + /** + * Gets the hash function. + * + * As set by the constructor or by the setHash() method. + * + * @access public + * @return String + */ + function getHash() + { + return $this->hashParam; + } + /** * Sets the hash function. * @@ -183,6 +204,7 @@ class Crypt_Hash { */ function setHash($hash) { + $this->hashParam = $hash = strtolower($hash); switch ($hash) { case 'md5-96': case 'sha1-96': @@ -295,7 +317,7 @@ class Crypt_Hash { { $mode = is_array($this->hash) ? CRYPT_HASH_MODE_INTERNAL : CRYPT_HASH_MODE; - if (!empty($this->key)) { + if (!empty($this->key) || is_string($this->key)) { switch ( $mode ) { case CRYPT_HASH_MODE_MHASH: $output = mhash($this->hash, $text, $this->key); @@ -349,7 +371,7 @@ class Crypt_Hash { * Wrapper for MD5 * * @access private - * @param String $text + * @param String $m */ function _md5($m) { @@ -360,7 +382,7 @@ class Crypt_Hash { * Wrapper for SHA1 * * @access private - * @param String $text + * @param String $m */ function _sha1($m) { @@ -373,7 +395,7 @@ class Crypt_Hash { * See {@link http://tools.ietf.org/html/rfc1319 RFC1319}. * * @access private - * @param String $text + * @param String $m */ function _md2($m) { @@ -449,7 +471,7 @@ class Crypt_Hash { * See {@link http://en.wikipedia.org/wiki/SHA_hash_functions#SHA-256_.28a_SHA-2_variant.29_pseudocode SHA-256 (a SHA-2 variant) pseudocode - Wikipedia}. * * @access private - * @param String $text + * @param String $m */ function _sha256($m) { @@ -554,12 +576,12 @@ class Crypt_Hash { * Pure-PHP implementation of SHA384 and SHA512 * * @access private - * @param String $text + * @param String $m */ function _sha512($m) { if (!class_exists('Math_BigInteger')) { - require_once('Math/BigInteger.php'); + include_once 'Math/BigInteger.php'; } static $init384, $init512, $k; @@ -567,11 +589,11 @@ class Crypt_Hash { if (!isset($k)) { // Initialize variables $init384 = array( // initial values for SHA384 - 'cbbb9d5dc1059ed8', '629a292a367cd507', '9159015a3070dd17', '152fecd8f70e5939', + 'cbbb9d5dc1059ed8', '629a292a367cd507', '9159015a3070dd17', '152fecd8f70e5939', '67332667ffc00b31', '8eb44a8768581511', 'db0c2e0d64f98fa7', '47b5481dbefa4fa4' ); $init512 = array( // initial values for SHA512 - '6a09e667f3bcc908', 'bb67ae8584caa73b', '3c6ef372fe94f82b', 'a54ff53a5f1d36f1', + '6a09e667f3bcc908', 'bb67ae8584caa73b', '3c6ef372fe94f82b', 'a54ff53a5f1d36f1', '510e527fade682d1', '9b05688c2b3e6c1f', '1f83d9abfb41bd6b', '5be0cd19137e2179' ); @@ -783,9 +805,8 @@ class Crypt_Hash { * _sha256() adds multiple unsigned 32-bit integers. Since PHP doesn't support unsigned integers and since the * possibility of overflow exists, care has to be taken. Math_BigInteger() could be used but this should be faster. * - * @param String $string - * @param optional Integer $index - * @return String + * @param Integer $... + * @return Integer * @see _sha256() * @access private */ @@ -821,4 +842,4 @@ class Crypt_Hash { $string = substr($string, $index); return $substr; } -} \ No newline at end of file +} diff --git a/lam/lib/3rdParty/phpseclib/Crypt/RC2.php b/lam/lib/3rdParty/phpseclib/Crypt/RC2.php new file mode 100644 index 00000000..3436c34b --- /dev/null +++ b/lam/lib/3rdParty/phpseclib/Crypt/RC2.php @@ -0,0 +1,653 @@ + + * setKey('abcdefgh'); + * + * $plaintext = str_repeat('a', 1024); + * + * echo $rc2->decrypt($rc2->encrypt($plaintext)); + * ?> + * + * + * LICENSE: Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + * @category Crypt + * @package Crypt_RC2 + * @author Patrick Monnerat + * @license http://www.opensource.org/licenses/mit-license.html MIT License + * @link http://phpseclib.sourceforge.net + */ + +/** + * Include Crypt_Base + * + * Base cipher class + */ +if (!class_exists('Crypt_Base')) { + include_once 'Base.php'; +} + +/**#@+ + * @access public + * @see Crypt_RC2::encrypt() + * @see Crypt_RC2::decrypt() + */ +/** + * Encrypt / decrypt using the Counter mode. + * + * Set to -1 since that's what Crypt/Random.php uses to index the CTR mode. + * + * @link http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation#Counter_.28CTR.29 + */ +define('CRYPT_RC2_MODE_CTR', CRYPT_MODE_CTR); +/** + * Encrypt / decrypt using the Electronic Code Book mode. + * + * @link http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation#Electronic_codebook_.28ECB.29 + */ +define('CRYPT_RC2_MODE_ECB', CRYPT_MODE_ECB); +/** + * Encrypt / decrypt using the Code Book Chaining mode. + * + * @link http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation#Cipher-block_chaining_.28CBC.29 + */ +define('CRYPT_RC2_MODE_CBC', CRYPT_MODE_CBC); +/** + * Encrypt / decrypt using the Cipher Feedback mode. + * + * @link http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation#Cipher_feedback_.28CFB.29 + */ +define('CRYPT_RC2_MODE_CFB', CRYPT_MODE_CFB); +/** + * Encrypt / decrypt using the Cipher Feedback mode. + * + * @link http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation#Output_feedback_.28OFB.29 + */ +define('CRYPT_RC2_MODE_OFB', CRYPT_MODE_OFB); +/**#@-*/ + +/**#@+ + * @access private + * @see Crypt_RC2::Crypt_RC2() + */ +/** + * Toggles the internal implementation + */ +define('CRYPT_RC2_MODE_INTERNAL', CRYPT_MODE_INTERNAL); +/** + * Toggles the mcrypt implementation + */ +define('CRYPT_RC2_MODE_MCRYPT', CRYPT_MODE_MCRYPT); +/**#@-*/ + +/** + * Pure-PHP implementation of RC2. + * + * @package Crypt_RC2 + * @version 0.1.1 + * @access public + */ +class Crypt_RC2 extends Crypt_Base +{ + /** + * Block Length of the cipher + * + * @see Crypt_Base::block_size + * @var Integer + * @access private + */ + var $block_size = 8; + + /** + * The Key + * + * @see Crypt_Base::key + * @see setKey() + * @var String + * @access private + */ + var $key = "\0"; + + /** + * The default password key_size used by setPassword() + * + * @see Crypt_Base::password_key_size + * @see Crypt_Base::setPassword() + * @var Integer + * @access private + */ + var $password_key_size = 16; // = 128 bits + + /** + * The namespace used by the cipher for its constants. + * + * @see Crypt_Base::const_namespace + * @var String + * @access private + */ + var $const_namespace = 'RC2'; + + /** + * The mcrypt specific name of the cipher + * + * @see Crypt_Base::cipher_name_mcrypt + * @var String + * @access private + */ + var $cipher_name_mcrypt = 'rc2'; + + /** + * Optimizing value while CFB-encrypting + * + * @see Crypt_Base::cfb_init_len + * @var Integer + * @access private + */ + var $cfb_init_len = 500; + +/** + * The key length in bits. + * + * @see Crypt_RC2::setKeyLength() + * @see Crypt_RC2::setKey() + * @var Integer + * @access private + * @internal Should be in range [1..1024]. + * @internal Changing this value after setting the key has no effect. + */ + var $default_key_length = 1024; + + /** + * The Key Schedule + * + * @see Crypt_RC2::_setupKey() + * @var Array + * @access private + */ + var $keys; + + /** + * Key expansion randomization table. + * Twice the same 256-value sequence to save a modulus in key expansion. + * + * @see Crypt_RC2::setKey() + * @var Array + * @access private + */ + var $pitable = array( + 0xD9, 0x78, 0xF9, 0xC4, 0x19, 0xDD, 0xB5, 0xED, + 0x28, 0xE9, 0xFD, 0x79, 0x4A, 0xA0, 0xD8, 0x9D, + 0xC6, 0x7E, 0x37, 0x83, 0x2B, 0x76, 0x53, 0x8E, + 0x62, 0x4C, 0x64, 0x88, 0x44, 0x8B, 0xFB, 0xA2, + 0x17, 0x9A, 0x59, 0xF5, 0x87, 0xB3, 0x4F, 0x13, + 0x61, 0x45, 0x6D, 0x8D, 0x09, 0x81, 0x7D, 0x32, + 0xBD, 0x8F, 0x40, 0xEB, 0x86, 0xB7, 0x7B, 0x0B, + 0xF0, 0x95, 0x21, 0x22, 0x5C, 0x6B, 0x4E, 0x82, + 0x54, 0xD6, 0x65, 0x93, 0xCE, 0x60, 0xB2, 0x1C, + 0x73, 0x56, 0xC0, 0x14, 0xA7, 0x8C, 0xF1, 0xDC, + 0x12, 0x75, 0xCA, 0x1F, 0x3B, 0xBE, 0xE4, 0xD1, + 0x42, 0x3D, 0xD4, 0x30, 0xA3, 0x3C, 0xB6, 0x26, + 0x6F, 0xBF, 0x0E, 0xDA, 0x46, 0x69, 0x07, 0x57, + 0x27, 0xF2, 0x1D, 0x9B, 0xBC, 0x94, 0x43, 0x03, + 0xF8, 0x11, 0xC7, 0xF6, 0x90, 0xEF, 0x3E, 0xE7, + 0x06, 0xC3, 0xD5, 0x2F, 0xC8, 0x66, 0x1E, 0xD7, + 0x08, 0xE8, 0xEA, 0xDE, 0x80, 0x52, 0xEE, 0xF7, + 0x84, 0xAA, 0x72, 0xAC, 0x35, 0x4D, 0x6A, 0x2A, + 0x96, 0x1A, 0xD2, 0x71, 0x5A, 0x15, 0x49, 0x74, + 0x4B, 0x9F, 0xD0, 0x5E, 0x04, 0x18, 0xA4, 0xEC, + 0xC2, 0xE0, 0x41, 0x6E, 0x0F, 0x51, 0xCB, 0xCC, + 0x24, 0x91, 0xAF, 0x50, 0xA1, 0xF4, 0x70, 0x39, + 0x99, 0x7C, 0x3A, 0x85, 0x23, 0xB8, 0xB4, 0x7A, + 0xFC, 0x02, 0x36, 0x5B, 0x25, 0x55, 0x97, 0x31, + 0x2D, 0x5D, 0xFA, 0x98, 0xE3, 0x8A, 0x92, 0xAE, + 0x05, 0xDF, 0x29, 0x10, 0x67, 0x6C, 0xBA, 0xC9, + 0xD3, 0x00, 0xE6, 0xCF, 0xE1, 0x9E, 0xA8, 0x2C, + 0x63, 0x16, 0x01, 0x3F, 0x58, 0xE2, 0x89, 0xA9, + 0x0D, 0x38, 0x34, 0x1B, 0xAB, 0x33, 0xFF, 0xB0, + 0xBB, 0x48, 0x0C, 0x5F, 0xB9, 0xB1, 0xCD, 0x2E, + 0xC5, 0xF3, 0xDB, 0x47, 0xE5, 0xA5, 0x9C, 0x77, + 0x0A, 0xA6, 0x20, 0x68, 0xFE, 0x7F, 0xC1, 0xAD, + 0xD9, 0x78, 0xF9, 0xC4, 0x19, 0xDD, 0xB5, 0xED, + 0x28, 0xE9, 0xFD, 0x79, 0x4A, 0xA0, 0xD8, 0x9D, + 0xC6, 0x7E, 0x37, 0x83, 0x2B, 0x76, 0x53, 0x8E, + 0x62, 0x4C, 0x64, 0x88, 0x44, 0x8B, 0xFB, 0xA2, + 0x17, 0x9A, 0x59, 0xF5, 0x87, 0xB3, 0x4F, 0x13, + 0x61, 0x45, 0x6D, 0x8D, 0x09, 0x81, 0x7D, 0x32, + 0xBD, 0x8F, 0x40, 0xEB, 0x86, 0xB7, 0x7B, 0x0B, + 0xF0, 0x95, 0x21, 0x22, 0x5C, 0x6B, 0x4E, 0x82, + 0x54, 0xD6, 0x65, 0x93, 0xCE, 0x60, 0xB2, 0x1C, + 0x73, 0x56, 0xC0, 0x14, 0xA7, 0x8C, 0xF1, 0xDC, + 0x12, 0x75, 0xCA, 0x1F, 0x3B, 0xBE, 0xE4, 0xD1, + 0x42, 0x3D, 0xD4, 0x30, 0xA3, 0x3C, 0xB6, 0x26, + 0x6F, 0xBF, 0x0E, 0xDA, 0x46, 0x69, 0x07, 0x57, + 0x27, 0xF2, 0x1D, 0x9B, 0xBC, 0x94, 0x43, 0x03, + 0xF8, 0x11, 0xC7, 0xF6, 0x90, 0xEF, 0x3E, 0xE7, + 0x06, 0xC3, 0xD5, 0x2F, 0xC8, 0x66, 0x1E, 0xD7, + 0x08, 0xE8, 0xEA, 0xDE, 0x80, 0x52, 0xEE, 0xF7, + 0x84, 0xAA, 0x72, 0xAC, 0x35, 0x4D, 0x6A, 0x2A, + 0x96, 0x1A, 0xD2, 0x71, 0x5A, 0x15, 0x49, 0x74, + 0x4B, 0x9F, 0xD0, 0x5E, 0x04, 0x18, 0xA4, 0xEC, + 0xC2, 0xE0, 0x41, 0x6E, 0x0F, 0x51, 0xCB, 0xCC, + 0x24, 0x91, 0xAF, 0x50, 0xA1, 0xF4, 0x70, 0x39, + 0x99, 0x7C, 0x3A, 0x85, 0x23, 0xB8, 0xB4, 0x7A, + 0xFC, 0x02, 0x36, 0x5B, 0x25, 0x55, 0x97, 0x31, + 0x2D, 0x5D, 0xFA, 0x98, 0xE3, 0x8A, 0x92, 0xAE, + 0x05, 0xDF, 0x29, 0x10, 0x67, 0x6C, 0xBA, 0xC9, + 0xD3, 0x00, 0xE6, 0xCF, 0xE1, 0x9E, 0xA8, 0x2C, + 0x63, 0x16, 0x01, 0x3F, 0x58, 0xE2, 0x89, 0xA9, + 0x0D, 0x38, 0x34, 0x1B, 0xAB, 0x33, 0xFF, 0xB0, + 0xBB, 0x48, 0x0C, 0x5F, 0xB9, 0xB1, 0xCD, 0x2E, + 0xC5, 0xF3, 0xDB, 0x47, 0xE5, 0xA5, 0x9C, 0x77, + 0x0A, 0xA6, 0x20, 0x68, 0xFE, 0x7F, 0xC1, 0xAD + ); + + /** + * Inverse key expansion randomization table. + * + * @see Crypt_RC2::setKey() + * @var Array + * @access private + */ + var $invpitable = array( + 0xD1, 0xDA, 0xB9, 0x6F, 0x9C, 0xC8, 0x78, 0x66, + 0x80, 0x2C, 0xF8, 0x37, 0xEA, 0xE0, 0x62, 0xA4, + 0xCB, 0x71, 0x50, 0x27, 0x4B, 0x95, 0xD9, 0x20, + 0x9D, 0x04, 0x91, 0xE3, 0x47, 0x6A, 0x7E, 0x53, + 0xFA, 0x3A, 0x3B, 0xB4, 0xA8, 0xBC, 0x5F, 0x68, + 0x08, 0xCA, 0x8F, 0x14, 0xD7, 0xC0, 0xEF, 0x7B, + 0x5B, 0xBF, 0x2F, 0xE5, 0xE2, 0x8C, 0xBA, 0x12, + 0xE1, 0xAF, 0xB2, 0x54, 0x5D, 0x59, 0x76, 0xDB, + 0x32, 0xA2, 0x58, 0x6E, 0x1C, 0x29, 0x64, 0xF3, + 0xE9, 0x96, 0x0C, 0x98, 0x19, 0x8D, 0x3E, 0x26, + 0xAB, 0xA5, 0x85, 0x16, 0x40, 0xBD, 0x49, 0x67, + 0xDC, 0x22, 0x94, 0xBB, 0x3C, 0xC1, 0x9B, 0xEB, + 0x45, 0x28, 0x18, 0xD8, 0x1A, 0x42, 0x7D, 0xCC, + 0xFB, 0x65, 0x8E, 0x3D, 0xCD, 0x2A, 0xA3, 0x60, + 0xAE, 0x93, 0x8A, 0x48, 0x97, 0x51, 0x15, 0xF7, + 0x01, 0x0B, 0xB7, 0x36, 0xB1, 0x2E, 0x11, 0xFD, + 0x84, 0x2D, 0x3F, 0x13, 0x88, 0xB3, 0x34, 0x24, + 0x1B, 0xDE, 0xC5, 0x1D, 0x4D, 0x2B, 0x17, 0x31, + 0x74, 0xA9, 0xC6, 0x43, 0x6D, 0x39, 0x90, 0xBE, + 0xC3, 0xB0, 0x21, 0x6B, 0xF6, 0x0F, 0xD5, 0x99, + 0x0D, 0xAC, 0x1F, 0x5C, 0x9E, 0xF5, 0xF9, 0x4C, + 0xD6, 0xDF, 0x89, 0xE4, 0x8B, 0xFF, 0xC7, 0xAA, + 0xE7, 0xED, 0x46, 0x25, 0xB6, 0x06, 0x5E, 0x35, + 0xB5, 0xEC, 0xCE, 0xE8, 0x6C, 0x30, 0x55, 0x61, + 0x4A, 0xFE, 0xA0, 0x79, 0x03, 0xF0, 0x10, 0x72, + 0x7C, 0xCF, 0x52, 0xA6, 0xA7, 0xEE, 0x44, 0xD3, + 0x9A, 0x57, 0x92, 0xD0, 0x5A, 0x7A, 0x41, 0x7F, + 0x0E, 0x00, 0x63, 0xF2, 0x4F, 0x05, 0x83, 0xC9, + 0xA1, 0xD4, 0xDD, 0xC4, 0x56, 0xF4, 0xD2, 0x77, + 0x81, 0x09, 0x82, 0x33, 0x9F, 0x07, 0x86, 0x75, + 0x38, 0x4E, 0x69, 0xF1, 0xAD, 0x23, 0x73, 0x87, + 0x70, 0x02, 0xC2, 0x1E, 0xB8, 0x0A, 0xFC, 0xE6 + ); + + /** + * Default Constructor. + * + * Determines whether or not the mcrypt extension should be used. + * + * $mode could be: + * + * - CRYPT_RC2_MODE_ECB + * + * - CRYPT_RC2_MODE_CBC + * + * - CRYPT_RC2_MODE_CTR + * + * - CRYPT_RC2_MODE_CFB + * + * - CRYPT_RC2_MODE_OFB + * + * If not explictly set, CRYPT_RC2_MODE_CBC will be used. + * + * @see Crypt_Base::Crypt_Base() + * @param optional Integer $mode + * @access public + */ + function Crypt_RC2($mode = CRYPT_RC2_MODE_CBC) + { + parent::Crypt_Base($mode); + $this->setKey(''); + } + + /** + * Sets the key length + * + * Valid key lengths are 1 to 1024. + * Calling this function after setting the key has no effect until the next + * Crypt_RC2::setKey() call. + * + * @access public + * @param Integer $length in bits + */ + function setKeyLength($length) + { + if ($length >= 1 && $length <= 1024) { + $this->default_key_length = $length; + } + } + + /** + * Sets the key. + * + * Keys can be of any length. RC2, itself, uses 1 to 1024 bit keys (eg. + * strlen($key) <= 128), however, we only use the first 128 bytes if $key + * has more then 128 bytes in it, and set $key to a single null byte if + * it is empty. + * + * If the key is not explicitly set, it'll be assumed to be a single + * null byte. + * + * @see Crypt_Base::setKey() + * @access public + * @param String $key + * @param Integer $t1 optional Effective key length in bits. + */ + function setKey($key, $t1 = 0) + { + if ($t1 <= 0) { + $t1 = $this->default_key_length; + } else if ($t1 > 1024) { + $t1 = 1024; + } + // Key byte count should be 1..128. + $key = strlen($key) ? substr($key, 0, 128): "\x00"; + $t = strlen($key); + + // The mcrypt RC2 implementation only supports effective key length + // of 1024 bits. It is however possible to handle effective key + // lengths in range 1..1024 by expanding the key and applying + // inverse pitable mapping to the first byte before submitting it + // to mcrypt. + + // Key expansion. + $l = array_values(unpack('C*', $key)); + $t8 = ($t1 + 7) >> 3; + $tm = 0xFF >> (8 * $t8 - $t1); + + // Expand key. + $pitable = $this->pitable; + for ($i = $t; $i < 128; $i++) { + $l[$i] = $pitable[$l[$i - 1] + $l[$i - $t]]; + } + $i = 128 - $t8; + $l[$i] = $pitable[$l[$i] & $tm]; + while ($i--) { + $l[$i] = $pitable[$l[$i + 1] ^ $l[$i + $t8]]; + } + + // Prepare the key for mcrypt. + $l[0] = $this->invpitable[$l[0]]; + array_unshift($l, 'C*'); + parent::setKey(call_user_func_array('pack', $l)); + } + + /** + * Encrypts a block + * + * @see Crypt_Base::_encryptBlock() + * @see Crypt_Base::encrypt() + * @access private + * @param String $in + * @return String + */ + function _encryptBlock($in) + { + list($r0, $r1, $r2, $r3) = array_values(unpack('v*', $in)); + $keys = $this->keys; + $limit = 20; + $actions = array($limit => 44, 44 => 64); + $j = 0; + + for (;;) { + // Mixing round. + $r0 = (($r0 + $keys[$j++] + ((($r1 ^ $r2) & $r3) ^ $r1)) & 0xFFFF) << 1; + $r0 |= $r0 >> 16; + $r1 = (($r1 + $keys[$j++] + ((($r2 ^ $r3) & $r0) ^ $r2)) & 0xFFFF) << 2; + $r1 |= $r1 >> 16; + $r2 = (($r2 + $keys[$j++] + ((($r3 ^ $r0) & $r1) ^ $r3)) & 0xFFFF) << 3; + $r2 |= $r2 >> 16; + $r3 = (($r3 + $keys[$j++] + ((($r0 ^ $r1) & $r2) ^ $r0)) & 0xFFFF) << 5; + $r3 |= $r3 >> 16; + + if ($j == $limit) { + if ($limit == 64) { + break; + } + + // Mashing round. + $r0 += $keys[$r3 & 0x3F]; + $r1 += $keys[$r0 & 0x3F]; + $r2 += $keys[$r1 & 0x3F]; + $r3 += $keys[$r2 & 0x3F]; + $limit = $actions[$limit]; + } + } + + return pack('vvvv', $r0, $r1, $r2, $r3); + } + + /** + * Decrypts a block + * + * @see Crypt_Base::_decryptBlock() + * @see Crypt_Base::decrypt() + * @access private + * @param String $in + * @return String + */ + function _decryptBlock($in) + { + list($r0, $r1, $r2, $r3) = array_values(unpack('v*', $in)); + $keys = $this->keys; + $limit = 44; + $actions = array($limit => 20, 20 => 0); + $j = 64; + + for (;;) { + // R-mixing round. + $r3 = ($r3 | ($r3 << 16)) >> 5; + $r3 = ($r3 - $keys[--$j] - ((($r0 ^ $r1) & $r2) ^ $r0)) & 0xFFFF; + $r2 = ($r2 | ($r2 << 16)) >> 3; + $r2 = ($r2 - $keys[--$j] - ((($r3 ^ $r0) & $r1) ^ $r3)) & 0xFFFF; + $r1 = ($r1 | ($r1 << 16)) >> 2; + $r1 = ($r1 - $keys[--$j] - ((($r2 ^ $r3) & $r0) ^ $r2)) & 0xFFFF; + $r0 = ($r0 | ($r0 << 16)) >> 1; + $r0 = ($r0 - $keys[--$j] - ((($r1 ^ $r2) & $r3) ^ $r1)) & 0xFFFF; + + if ($j == $limit) { + if (!$limit) { + break; + } + + // R-mashing round. + $r3 = ($r3 - $keys[$r2 & 0x3F]) & 0xFFFF; + $r2 = ($r2 - $keys[$r1 & 0x3F]) & 0xFFFF; + $r1 = ($r1 - $keys[$r0 & 0x3F]) & 0xFFFF; + $r0 = ($r0 - $keys[$r3 & 0x3F]) & 0xFFFF; + $limit = $actions[$limit]; + } + } + + return pack('vvvv', $r0, $r1, $r2, $r3); + } + + /** + * Creates the key schedule + * + * @see Crypt_Base::_setupKey() + * @access private + */ + function _setupKey() + { + // Key has already been expanded in Crypt_RC2::setKey(): + // Only the first value must be altered. + $l = unpack('Ca/Cb/v*', $this->key); + array_unshift($l, $this->pitable[$l['a']] | ($l['b'] << 8)); + unset($l['a']); + unset($l['b']); + $this->keys = $l; + } + + /** + * Setup the performance-optimized function for de/encrypt() + * + * @see Crypt_Base::_setupInlineCrypt() + * @access private + */ + function _setupInlineCrypt() + { + $lambda_functions = &Crypt_RC2::_getLambdaFunctions(); + + // The first 10 generated $lambda_functions will use the $keys hardcoded as integers + // for the mixing rounds, for better inline crypt performance [~20% faster]. + // But for memory reason we have to limit those ultra-optimized $lambda_functions to an amount of 10. + $keys = $this->keys; + if (count($lambda_functions) >= 10) { + foreach ($this->keys as $k => $v) { + $keys[$k] = '$keys[' . $k . ']'; + } + } + + $code_hash = md5(str_pad("Crypt_RC2, {$this->mode}, ", 32, "\0") . implode(',', $keys)); + + // Is there a re-usable $lambda_functions in there? + // If not, we have to create it. + if (!isset($lambda_functions[$code_hash])) { + // Init code for both, encrypt and decrypt. + $init_crypt = '$keys = $self->keys;'; + + // $in is the current 8 bytes block which has to be en/decrypt + $encrypt_block = $decrypt_block = ' + $in = unpack("v4", $in); + $r0 = $in[1]; + $r1 = $in[2]; + $r2 = $in[3]; + $r3 = $in[4]; + '; + + // Create code for encryption. + $limit = 20; + $actions = array($limit => 44, 44 => 64); + $j = 0; + + for (;;) { + // Mixing round. + $encrypt_block .= ' + $r0 = (($r0 + ' . $keys[$j++] . ' + + ((($r1 ^ $r2) & $r3) ^ $r1)) & 0xFFFF) << 1; + $r0 |= $r0 >> 16; + $r1 = (($r1 + ' . $keys[$j++] . ' + + ((($r2 ^ $r3) & $r0) ^ $r2)) & 0xFFFF) << 2; + $r1 |= $r1 >> 16; + $r2 = (($r2 + ' . $keys[$j++] . ' + + ((($r3 ^ $r0) & $r1) ^ $r3)) & 0xFFFF) << 3; + $r2 |= $r2 >> 16; + $r3 = (($r3 + ' . $keys[$j++] . ' + + ((($r0 ^ $r1) & $r2) ^ $r0)) & 0xFFFF) << 5; + $r3 |= $r3 >> 16;'; + + if ($j == $limit) { + if ($limit == 64) { + break; + } + + // Mashing round. + $encrypt_block .= ' + $r0 += $keys[$r3 & 0x3F]; + $r1 += $keys[$r0 & 0x3F]; + $r2 += $keys[$r1 & 0x3F]; + $r3 += $keys[$r2 & 0x3F];'; + $limit = $actions[$limit]; + } + } + + $encrypt_block .= '$in = pack("v4", $r0, $r1, $r2, $r3);'; + + // Create code for decryption. + $limit = 44; + $actions = array($limit => 20, 20 => 0); + $j = 64; + + for (;;) { + // R-mixing round. + $decrypt_block .= ' + $r3 = ($r3 | ($r3 << 16)) >> 5; + $r3 = ($r3 - ' . $keys[--$j] . ' - + ((($r0 ^ $r1) & $r2) ^ $r0)) & 0xFFFF; + $r2 = ($r2 | ($r2 << 16)) >> 3; + $r2 = ($r2 - ' . $keys[--$j] . ' - + ((($r3 ^ $r0) & $r1) ^ $r3)) & 0xFFFF; + $r1 = ($r1 | ($r1 << 16)) >> 2; + $r1 = ($r1 - ' . $keys[--$j] . ' - + ((($r2 ^ $r3) & $r0) ^ $r2)) & 0xFFFF; + $r0 = ($r0 | ($r0 << 16)) >> 1; + $r0 = ($r0 - ' . $keys[--$j] . ' - + ((($r1 ^ $r2) & $r3) ^ $r1)) & 0xFFFF;'; + + if ($j == $limit) { + if (!$limit) { + break; + } + + // R-mashing round. + $decrypt_block .= ' + $r3 = ($r3 - $keys[$r2 & 0x3F]) & 0xFFFF; + $r2 = ($r2 - $keys[$r1 & 0x3F]) & 0xFFFF; + $r1 = ($r1 - $keys[$r0 & 0x3F]) & 0xFFFF; + $r0 = ($r0 - $keys[$r3 & 0x3F]) & 0xFFFF;'; + $limit = $actions[$limit]; + } + } + + $decrypt_block .= '$in = pack("v4", $r0, $r1, $r2, $r3);'; + + // Creates the inline-crypt function + $lambda_functions[$code_hash] = $this->_createInlineCryptFunction( + array( + 'init_crypt' => $init_crypt, + 'encrypt_block' => $encrypt_block, + 'decrypt_block' => $decrypt_block + ) + ); + } + + // Set the inline-crypt function as callback in: $this->inline_crypt + $this->inline_crypt = $lambda_functions[$code_hash]; + } +} diff --git a/lam/lib/3rdParty/phpseclib/Crypt/RC4.php b/lam/lib/3rdParty/phpseclib/Crypt/RC4.php index f7b22fbf..d062be25 100644 --- a/lam/lib/3rdParty/phpseclib/Crypt/RC4.php +++ b/lam/lib/3rdParty/phpseclib/Crypt/RC4.php @@ -1,5 +1,4 @@ @@ -41,10 +40,10 @@ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: - * + * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. - * + * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE @@ -53,15 +52,23 @@ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. * - * @category Crypt - * @package Crypt_RC4 - * @author Jim Wigginton - * @copyright MMVII Jim Wigginton - * @license http://www.opensource.org/licenses/mit-license.html MIT License - * @version $Id$ - * @link http://phpseclib.sourceforge.net + * @category Crypt + * @package Crypt_RC4 + * @author Jim Wigginton + * @copyright MMVII Jim Wigginton + * @license http://www.opensource.org/licenses/mit-license.html MIT License + * @link http://phpseclib.sourceforge.net */ +/** + * Include Crypt_Base + * + * Base cipher class + */ +if (!class_exists('Crypt_Base')) { + include_once 'Base.php'; +} + /**#@+ * @access private * @see Crypt_RC4::Crypt_RC4() @@ -69,11 +76,11 @@ /** * Toggles the internal implementation */ -define('CRYPT_RC4_MODE_INTERNAL', 1); +define('CRYPT_RC4_MODE_INTERNAL', CRYPT_MODE_INTERNAL); /** * Toggles the mcrypt implementation */ -define('CRYPT_RC4_MODE_MCRYPT', 2); +define('CRYPT_RC4_MODE_MCRYPT', CRYPT_MODE_MCRYPT); /**#@-*/ /**#@+ @@ -87,12 +94,62 @@ define('CRYPT_RC4_DECRYPT', 1); /** * Pure-PHP implementation of RC4. * + * @package Crypt_RC4 * @author Jim Wigginton * @version 0.1.0 * @access public - * @package Crypt_RC4 */ -class Crypt_RC4 { +class Crypt_RC4 extends Crypt_Base +{ + /** + * Block Length of the cipher + * + * RC4 is a stream cipher + * so we the block_size to 0 + * + * @see Crypt_Base::block_size + * @var Integer + * @access private + */ + var $block_size = 0; + + /** + * The default password key_size used by setPassword() + * + * @see Crypt_Base::password_key_size + * @see Crypt_Base::setPassword() + * @var Integer + * @access private + */ + var $password_key_size = 128; // = 1024 bits + + /** + * The namespace used by the cipher for its constants. + * + * @see Crypt_Base::const_namespace + * @var String + * @access private + */ + var $const_namespace = 'RC4'; + + /** + * The mcrypt specific name of the cipher + * + * @see Crypt_Base::cipher_name_mcrypt + * @var String + * @access private + */ + var $cipher_name_mcrypt = 'arcfour'; + + /** + * Holds whether performance-optimized $inline_crypt() can/should be used. + * + * @see Crypt_Base::inline_crypt + * @var mixed + * @access private + */ + var $use_inline_crypt = false; // currently not available + /** * The Key * @@ -103,142 +160,26 @@ class Crypt_RC4 { var $key = "\0"; /** - * The Key Stream for encryption - * - * If CRYPT_RC4_MODE == CRYPT_RC4_MODE_MCRYPT, this will be equal to the mcrypt object + * The Key Stream for decryption and encryption * * @see Crypt_RC4::setKey() * @var Array * @access private */ - var $encryptStream = false; - - /** - * The Key Stream for decryption - * - * If CRYPT_RC4_MODE == CRYPT_RC4_MODE_MCRYPT, this will be equal to the mcrypt object - * - * @see Crypt_RC4::setKey() - * @var Array - * @access private - */ - var $decryptStream = false; - - /** - * The $i and $j indexes for encryption - * - * @see Crypt_RC4::_crypt() - * @var Integer - * @access private - */ - var $encryptIndex = 0; - - /** - * The $i and $j indexes for decryption - * - * @see Crypt_RC4::_crypt() - * @var Integer - * @access private - */ - var $decryptIndex = 0; - - /** - * MCrypt parameters - * - * @see Crypt_RC4::setMCrypt() - * @var Array - * @access private - */ - var $mcrypt = array('', ''); - - /** - * The Encryption Algorithm - * - * Only used if CRYPT_RC4_MODE == CRYPT_RC4_MODE_MCRYPT. Only possible values are MCRYPT_RC4 or MCRYPT_ARCFOUR. - * - * @see Crypt_RC4::Crypt_RC4() - * @var Integer - * @access private - */ - var $mode; - - /** - * Continuous Buffer status - * - * @see Crypt_RC4::enableContinuousBuffer() - * @var Boolean - * @access private - */ - var $continuousBuffer = false; + var $stream; /** * Default Constructor. * * Determines whether or not the mcrypt extension should be used. * - * @param optional Integer $mode + * @see Crypt_Base::Crypt_Base() * @return Crypt_RC4 * @access public */ function Crypt_RC4() { - if ( !defined('CRYPT_RC4_MODE') ) { - switch (true) { - case extension_loaded('mcrypt') && (defined('MCRYPT_ARCFOUR') || defined('MCRYPT_RC4')): - // i'd check to see if rc4 was supported, by doing in_array('arcfour', mcrypt_list_algorithms('')), - // but since that can be changed after the object has been created, there doesn't seem to be - // a lot of point... - define('CRYPT_RC4_MODE', CRYPT_RC4_MODE_MCRYPT); - break; - default: - define('CRYPT_RC4_MODE', CRYPT_RC4_MODE_INTERNAL); - } - } - - switch ( CRYPT_RC4_MODE ) { - case CRYPT_RC4_MODE_MCRYPT: - switch (true) { - case defined('MCRYPT_ARCFOUR'): - $this->mode = MCRYPT_ARCFOUR; - break; - case defined('MCRYPT_RC4'); - $this->mode = MCRYPT_RC4; - } - } - } - - /** - * Sets the key. - * - * Keys can be between 1 and 256 bytes long. If they are longer then 256 bytes, the first 256 bytes will - * be used. If no key is explicitly set, it'll be assumed to be a single null byte. - * - * @access public - * @param String $key - */ - function setKey($key) - { - $this->key = $key; - - if ( CRYPT_RC4_MODE == CRYPT_RC4_MODE_MCRYPT ) { - return; - } - - $keyLength = strlen($key); - $keyStream = array(); - for ($i = 0; $i < 256; $i++) { - $keyStream[$i] = $i; - } - $j = 0; - for ($i = 0; $i < 256; $i++) { - $j = ($j + $keyStream[$i] + ord($key[$i % $keyLength])) & 255; - $temp = $keyStream[$i]; - $keyStream[$i] = $keyStream[$j]; - $keyStream[$j] = $temp; - } - - $this->encryptIndex = $this->decryptIndex = array(0, 0); - $this->encryptStream = $this->decryptStream = $keyStream; + parent::Crypt_Base(CRYPT_MODE_STREAM); } /** @@ -265,32 +206,34 @@ class Crypt_RC4 { } /** - * Sets MCrypt parameters. (optional) + * Sets the key. * - * If MCrypt is being used, empty strings will be used, unless otherwise specified. + * Keys can be between 1 and 256 bytes long. If they are longer then 256 bytes, the first 256 bytes will + * be used. If no key is explicitly set, it'll be assumed to be a single null byte. * - * @link http://php.net/function.mcrypt-module-open#function.mcrypt-module-open * @access public - * @param optional Integer $algorithm_directory - * @param optional Integer $mode_directory + * @see Crypt_Base::setKey() + * @param String $key */ - function setMCrypt($algorithm_directory = '', $mode_directory = '') + function setKey($key) { - if ( CRYPT_RC4_MODE == CRYPT_RC4_MODE_MCRYPT ) { - $this->mcrypt = array($algorithm_directory, $mode_directory); - $this->_closeMCrypt(); - } + parent::setKey(substr($key, 0, 256)); } /** * Encrypts a message. * + * @see Crypt_Base::decrypt() * @see Crypt_RC4::_crypt() * @access public * @param String $plaintext + * @return String $ciphertext */ function encrypt($plaintext) { + if ($this->engine == CRYPT_MODE_MCRYPT) { + return parent::encrypt($plaintext); + } return $this->_crypt($plaintext, CRYPT_RC4_ENCRYPT); } @@ -300,15 +243,51 @@ class Crypt_RC4 { * $this->decrypt($this->encrypt($plaintext)) == $this->encrypt($this->encrypt($plaintext)). * Atleast if the continuous buffer is disabled. * + * @see Crypt_Base::encrypt() * @see Crypt_RC4::_crypt() * @access public * @param String $ciphertext + * @return String $plaintext */ function decrypt($ciphertext) { + if ($this->engine == CRYPT_MODE_MCRYPT) { + return parent::decrypt($ciphertext); + } return $this->_crypt($ciphertext, CRYPT_RC4_DECRYPT); } + + /** + * Setup the key (expansion) + * + * @see Crypt_Base::_setupKey() + * @access private + */ + function _setupKey() + { + $key = $this->key; + $keyLength = strlen($key); + $keyStream = array(); + for ($i = 0; $i < 256; $i++) { + $keyStream[$i] = $i; + } + $j = 0; + for ($i = 0; $i < 256; $i++) { + $j = ($j + $keyStream[$i] + ord($key[$i % $keyLength])) & 255; + $temp = $keyStream[$i]; + $keyStream[$i] = $keyStream[$j]; + $keyStream[$j] = $temp; + } + + $this->stream = array(); + $this->stream[CRYPT_RC4_DECRYPT] = $this->stream[CRYPT_RC4_ENCRYPT] = array( + 0, // index $i + 0, // index $j + $keyStream + ); + } + /** * Encrypts or decrypts a message. * @@ -317,189 +296,38 @@ class Crypt_RC4 { * @access private * @param String $text * @param Integer $mode + * @return String $text */ function _crypt($text, $mode) { - if ( CRYPT_RC4_MODE == CRYPT_RC4_MODE_MCRYPT ) { - $keyStream = $mode == CRYPT_RC4_ENCRYPT ? 'encryptStream' : 'decryptStream'; - - if ($this->$keyStream === false) { - $this->$keyStream = mcrypt_module_open($this->mode, $this->mcrypt[0], MCRYPT_MODE_STREAM, $this->mcrypt[1]); - mcrypt_generic_init($this->$keyStream, $this->key, ''); - } else if (!$this->continuousBuffer) { - mcrypt_generic_init($this->$keyStream, $this->key, ''); - } - $newText = mcrypt_generic($this->$keyStream, $text); - if (!$this->continuousBuffer) { - mcrypt_generic_deinit($this->$keyStream); - } - - return $newText; - } - - if ($this->encryptStream === false) { - $this->setKey($this->key); - } - - switch ($mode) { - case CRYPT_RC4_ENCRYPT: - $keyStream = $this->encryptStream; - list($i, $j) = $this->encryptIndex; - break; - case CRYPT_RC4_DECRYPT: - $keyStream = $this->decryptStream; - list($i, $j) = $this->decryptIndex; - } - - $newText = ''; - for ($k = 0; $k < strlen($text); $k++) { - $i = ($i + 1) & 255; - $j = ($j + $keyStream[$i]) & 255; - $temp = $keyStream[$i]; - $keyStream[$i] = $keyStream[$j]; - $keyStream[$j] = $temp; - $temp = $keyStream[($keyStream[$i] + $keyStream[$j]) & 255]; - $newText.= chr(ord($text[$k]) ^ $temp); + if ($this->changed) { + $this->_setup(); + $this->changed = false; } + $stream = &$this->stream[$mode]; if ($this->continuousBuffer) { - switch ($mode) { - case CRYPT_RC4_ENCRYPT: - $this->encryptStream = $keyStream; - $this->encryptIndex = array($i, $j); - break; - case CRYPT_RC4_DECRYPT: - $this->decryptStream = $keyStream; - $this->decryptIndex = array($i, $j); - } + $i = &$stream[0]; + $j = &$stream[1]; + $keyStream = &$stream[2]; + } else { + $i = $stream[0]; + $j = $stream[1]; + $keyStream = $stream[2]; } - return $newText; - } + $len = strlen($text); + for ($k = 0; $k < $len; ++$k) { + $i = ($i + 1) & 255; + $ksi = $keyStream[$i]; + $j = ($j + $ksi) & 255; + $ksj = $keyStream[$j]; - /** - * Treat consecutive "packets" as if they are a continuous buffer. - * - * Say you have a 16-byte plaintext $plaintext. Using the default behavior, the two following code snippets - * will yield different outputs: - * - * - * echo $rc4->encrypt(substr($plaintext, 0, 8)); - * echo $rc4->encrypt(substr($plaintext, 8, 8)); - * - * - * echo $rc4->encrypt($plaintext); - * - * - * The solution is to enable the continuous buffer. Although this will resolve the above discrepancy, it creates - * another, as demonstrated with the following: - * - * - * $rc4->encrypt(substr($plaintext, 0, 8)); - * echo $rc4->decrypt($des->encrypt(substr($plaintext, 8, 8))); - * - * - * echo $rc4->decrypt($des->encrypt(substr($plaintext, 8, 8))); - * - * - * With the continuous buffer disabled, these would yield the same output. With it enabled, they yield different - * outputs. The reason is due to the fact that the initialization vector's change after every encryption / - * decryption round when the continuous buffer is enabled. When it's disabled, they remain constant. - * - * Put another way, when the continuous buffer is enabled, the state of the Crypt_DES() object changes after each - * encryption / decryption round, whereas otherwise, it'd remain constant. For this reason, it's recommended that - * continuous buffers not be used. They do offer better security and are, in fact, sometimes required (SSH uses them), - * however, they are also less intuitive and more likely to cause you problems. - * - * @see Crypt_RC4::disableContinuousBuffer() - * @access public - */ - function enableContinuousBuffer() - { - $this->continuousBuffer = true; - } - - /** - * Treat consecutive packets as if they are a discontinuous buffer. - * - * The default behavior. - * - * @see Crypt_RC4::enableContinuousBuffer() - * @access public - */ - function disableContinuousBuffer() - { - if ( CRYPT_RC4_MODE == CRYPT_RC4_MODE_INTERNAL ) { - $this->encryptIndex = $this->decryptIndex = array(0, 0); - $this->setKey($this->key); + $keyStream[$i] = $ksj; + $keyStream[$j] = $ksi; + $text[$k] = chr(ord($text[$k]) ^ $keyStream[($ksj + $ksi) & 255]); } - $this->continuousBuffer = false; + return $text; } - - /** - * Dummy function. - * - * Since RC4 is a stream cipher and not a block cipher, no padding is necessary. The only reason this function is - * included is so that you can switch between a block cipher and a stream cipher transparently. - * - * @see Crypt_RC4::disablePadding() - * @access public - */ - function enablePadding() - { - } - - /** - * Dummy function. - * - * @see Crypt_RC4::enablePadding() - * @access public - */ - function disablePadding() - { - } - - /** - * Class destructor. - * - * Will be called, automatically, if you're using PHP5. If you're using PHP4, call it yourself. Only really - * needs to be called if mcrypt is being used. - * - * @access public - */ - function __destruct() - { - if ( CRYPT_RC4_MODE == CRYPT_RC4_MODE_MCRYPT ) { - $this->_closeMCrypt(); - } - } - - /** - * Properly close the MCrypt objects. - * - * @access prviate - */ - function _closeMCrypt() - { - if ( $this->encryptStream !== false ) { - if ( $this->continuousBuffer ) { - mcrypt_generic_deinit($this->encryptStream); - } - - mcrypt_module_close($this->encryptStream); - - $this->encryptStream = false; - } - - if ( $this->decryptStream !== false ) { - if ( $this->continuousBuffer ) { - mcrypt_generic_deinit($this->decryptStream); - } - - mcrypt_module_close($this->decryptStream); - - $this->decryptStream = false; - } - } -} \ No newline at end of file +} diff --git a/lam/lib/3rdParty/phpseclib/Crypt/RSA.php b/lam/lib/3rdParty/phpseclib/Crypt/RSA.php index 7b795d1f..feb887c7 100644 --- a/lam/lib/3rdParty/phpseclib/Crypt/RSA.php +++ b/lam/lib/3rdParty/phpseclib/Crypt/RSA.php @@ -1,5 +1,4 @@ - * @copyright MMIX Jim Wigginton - * @license http://www.opensource.org/licenses/mit-license.html MIT License - * @version $Id$ - * @link http://phpseclib.sourceforge.net + * @category Crypt + * @package Crypt_RSA + * @author Jim Wigginton + * @copyright MMIX Jim Wigginton + * @license http://www.opensource.org/licenses/mit-license.html MIT License + * @link http://phpseclib.sourceforge.net */ -/** - * Include Math_BigInteger - */ -require_once('Math/BigInteger.php'); - /** * Include Crypt_Random */ -require_once('Crypt/Random.php'); +// the class_exists() will only be called if the crypt_random_string function hasn't been defined and +// will trigger a call to __autoload() if you're wanting to auto-load classes +// call function_exists() a second time to stop the include_once from being called outside +// of the auto loader +if (!function_exists('crypt_random_string')) { + include_once 'Random.php'; +} /** * Include Crypt_Hash */ -require_once('Crypt/Hash.php'); +if (!class_exists('Crypt_Hash')) { + include_once 'Hash.php'; +} /**#@+ * @access public @@ -140,6 +141,10 @@ define('CRYPT_RSA_SIGNATURE_PKCS1', 2); * ASN1 Integer */ define('CRYPT_RSA_ASN1_INTEGER', 2); +/** + * ASN1 Bit String + */ +define('CRYPT_RSA_ASN1_BITSTRING', 3); /** * ASN1 Sequence (with the constucted bit set) */ @@ -162,6 +167,11 @@ define('CRYPT_RSA_MODE_INTERNAL', 1); define('CRYPT_RSA_MODE_OPENSSL', 2); /**#@-*/ +/** + * Default openSSL configuration file. + */ +define('CRYPT_RSA_OPENSSL_CONFIG', dirname(__FILE__) . '/../openssl.cnf'); + /**#@+ * @access public * @see Crypt_RSA::createKey() @@ -203,9 +213,11 @@ define('CRYPT_RSA_PRIVATE_FORMAT_XML', 2); */ define('CRYPT_RSA_PUBLIC_FORMAT_RAW', 3); /** - * PKCS#1 formatted public key + * PKCS#1 formatted public key (raw) + * + * Used by File/X509.php */ -define('CRYPT_RSA_PUBLIC_FORMAT_PKCS1', 4); +define('CRYPT_RSA_PUBLIC_FORMAT_PKCS1_RAW', 4); /** * XML formatted public key */ @@ -216,17 +228,24 @@ define('CRYPT_RSA_PUBLIC_FORMAT_XML', 5); * Place in $HOME/.ssh/authorized_keys */ define('CRYPT_RSA_PUBLIC_FORMAT_OPENSSH', 6); +/** + * PKCS#1 formatted public key (encapsulated) + * + * Used by PHP's openssl_public_encrypt() and openssl's rsautl (when -pubin is set) + */ +define('CRYPT_RSA_PUBLIC_FORMAT_PKCS1', 7); /**#@-*/ /** * Pure-PHP PKCS#1 compliant implementation of RSA. * + * @package Crypt_RSA * @author Jim Wigginton * @version 0.1.0 * @access public - * @package Crypt_RSA */ -class Crypt_RSA { +class Crypt_RSA +{ /** * Precomputed Zero * @@ -385,7 +404,7 @@ class Crypt_RSA { * @var String * @access private */ - var $password = ''; + var $password = false; /** * Components @@ -411,6 +430,24 @@ class Crypt_RSA { */ var $current; + /** + * OpenSSL configuration file name. + * + * Set to null to use system configuration file. + * @see Crypt_RSA::createKey() + * @var Mixed + * @Access public + */ + var $configFile; + + /** + * Public key comment field. + * + * @var String + * @access private + */ + var $comment = 'phpseclib-generated-key'; + /** * The constructor * @@ -423,12 +460,50 @@ class Crypt_RSA { */ function Crypt_RSA() { + if (!class_exists('Math_BigInteger')) { + include_once 'Math/BigInteger.php'; + } + + $this->configFile = CRYPT_RSA_OPENSSL_CONFIG; + if ( !defined('CRYPT_RSA_MODE') ) { - switch (true) { - //case extension_loaded('openssl') && version_compare(PHP_VERSION, '4.2.0', '>='): - // define('CRYPT_RSA_MODE', CRYPT_RSA_MODE_OPENSSL); - // break; - default: + // Math/BigInteger's openssl requirements are a little less stringent than Crypt/RSA's. in particular, + // Math/BigInteger doesn't require an openssl.cfg file whereas Crypt/RSA does. so if Math/BigInteger + // can't use OpenSSL it can be pretty trivially assumed, then, that Crypt/RSA can't either. + if ( defined('MATH_BIGINTEGER_OPENSSL_DISABLE') ) { + define('CRYPT_RSA_MODE', CRYPT_RSA_MODE_INTERNAL); + } + + switch ( !defined('CRYPT_RSA_MODE') ) { // ie. only run this if the above didn't set CRYPT_RSA_MODE already + case extension_loaded('openssl') && version_compare(PHP_VERSION, '4.2.0', '>=') && file_exists($this->configFile): + // some versions of XAMPP have mismatched versions of OpenSSL which causes it not to work + ob_start(); + phpinfo(); + $content = ob_get_contents(); + ob_end_clean(); + + preg_match_all('#OpenSSL (Header|Library) Version(.*)#im', $content, $matches); + + $versions = array(); + if (!empty($matches[1])) { + for ($i = 0; $i < count($matches[1]); $i++) { + $versions[$matches[1][$i]] = trim(str_replace('=>', '', strip_tags($matches[2][$i]))); + } + } + + // it doesn't appear that OpenSSL versions were reported upon until PHP 5.3+ + switch (true) { + case !isset($versions['Header']): + case !isset($versions['Library']): + case $versions['Header'] == $versions['Library']: + define('CRYPT_RSA_MODE', CRYPT_RSA_MODE_OPENSSL); + break; + default: + define('CRYPT_RSA_MODE', CRYPT_RSA_MODE_INTERNAL); + define('MATH_BIGINTEGER_OPENSSL_DISABLE', true); + } + break; + case true: define('CRYPT_RSA_MODE', CRYPT_RSA_MODE_INTERNAL); } } @@ -459,16 +534,36 @@ class Crypt_RSA { */ function createKey($bits = 1024, $timeout = false, $partial = array()) { - if ( CRYPT_RSA_MODE == CRYPT_RSA_MODE_OPENSSL ) { - $rsa = openssl_pkey_new(array('private_key_bits' => $bits)); - openssl_pkey_export($rsa, $privatekey); + if (!defined('CRYPT_RSA_EXPONENT')) { + // http://en.wikipedia.org/wiki/65537_%28number%29 + define('CRYPT_RSA_EXPONENT', '65537'); + } + // per , this number ought not result in primes smaller + // than 256 bits. as a consequence if the key you're trying to create is 1024 bits and you've set CRYPT_RSA_SMALLEST_PRIME + // to 384 bits then you're going to get a 384 bit prime and a 640 bit prime (384 + 1024 % 384). at least if + // CRYPT_RSA_MODE is set to CRYPT_RSA_MODE_INTERNAL. if CRYPT_RSA_MODE is set to CRYPT_RSA_MODE_OPENSSL then + // CRYPT_RSA_SMALLEST_PRIME is ignored (ie. multi-prime RSA support is more intended as a way to speed up RSA key + // generation when there's a chance neither gmp nor OpenSSL are installed) + if (!defined('CRYPT_RSA_SMALLEST_PRIME')) { + define('CRYPT_RSA_SMALLEST_PRIME', 4096); + } + + // OpenSSL uses 65537 as the exponent and requires RSA keys be 384 bits minimum + if ( CRYPT_RSA_MODE == CRYPT_RSA_MODE_OPENSSL && $bits >= 384 && CRYPT_RSA_EXPONENT == 65537) { + $config = array(); + if (isset($this->configFile)) { + $config['config'] = $this->configFile; + } + $rsa = openssl_pkey_new(array('private_key_bits' => $bits) + $config); + openssl_pkey_export($rsa, $privatekey, null, $config); $publickey = openssl_pkey_get_details($rsa); $publickey = $publickey['key']; - if ($this->privateKeyFormat != CRYPT_RSA_PRIVATE_FORMAT_PKCS1) { - $privatekey = call_user_func_array(array($this, '_convertPrivateKey'), array_values($this->_parseKey($privatekey, CRYPT_RSA_PRIVATE_FORMAT_PKCS1))); - $publickey = call_user_func_array(array($this, '_convertPublicKey'), array_values($this->_parseKey($publickey, CRYPT_RSA_PUBLIC_FORMAT_PKCS1))); - } + $privatekey = call_user_func_array(array($this, '_convertPrivateKey'), array_values($this->_parseKey($privatekey, CRYPT_RSA_PRIVATE_FORMAT_PKCS1))); + $publickey = call_user_func_array(array($this, '_convertPublicKey'), array_values($this->_parseKey($publickey, CRYPT_RSA_PUBLIC_FORMAT_PKCS1))); + + // clear the buffer of error strings stemming from a minimalistic openssl.cnf + while (openssl_error_string() !== false); return array( 'privatekey' => $privatekey, @@ -479,25 +574,12 @@ class Crypt_RSA { static $e; if (!isset($e)) { - if (!defined('CRYPT_RSA_EXPONENT')) { - // http://en.wikipedia.org/wiki/65537_%28number%29 - define('CRYPT_RSA_EXPONENT', '65537'); - } - if (!defined('CRYPT_RSA_COMMENT')) { - define('CRYPT_RSA_COMMENT', 'phpseclib-generated-key'); - } - // per , this number ought not result in primes smaller - // than 256 bits. - if (!defined('CRYPT_RSA_SMALLEST_PRIME')) { - define('CRYPT_RSA_SMALLEST_PRIME', 4096); - } - $e = new Math_BigInteger(CRYPT_RSA_EXPONENT); } extract($this->_generateMinMax($bits)); $absoluteMin = $min; - $temp = $bits >> 1; + $temp = $bits >> 1; // divide by two to see how many bits P and Q would be if ($temp > CRYPT_RSA_SMALLEST_PRIME) { $num_primes = floor($bits / CRYPT_RSA_SMALLEST_PRIME); $temp = CRYPT_RSA_SMALLEST_PRIME; @@ -509,7 +591,6 @@ class Crypt_RSA { extract($this->_generateMinMax($temp)); $generator = new Math_BigInteger(); - $generator->setRandomGenerator('crypt_random'); $n = $this->one->copy(); if (!empty($partial)) { @@ -592,12 +673,12 @@ class Crypt_RSA { $exponents[$i] = $e->modInverse($temp); } - list($lcm) = $lcm['top']->divide($lcm['bottom']); - $gcd = $lcm->gcd($e); + list($temp) = $lcm['top']->divide($lcm['bottom']); + $gcd = $temp->gcd($e); $i0 = 1; } while (!$gcd->equals($this->one)); - $d = $e->modInverse($lcm); + $d = $e->modInverse($temp); $coefficients[2] = $primes[2]->modInverse($primes[1]); @@ -648,6 +729,78 @@ class Crypt_RSA { // if the format in question does not support multi-prime rsa and multi-prime rsa was used, // call _convertPublicKey() instead. switch ($this->privateKeyFormat) { + case CRYPT_RSA_PRIVATE_FORMAT_XML: + if ($num_primes != 2) { + return false; + } + return "\r\n" . + ' ' . base64_encode($raw['modulus']) . "\r\n" . + ' ' . base64_encode($raw['publicExponent']) . "\r\n" . + '

' . base64_encode($raw['prime1']) . "

\r\n" . + ' ' . base64_encode($raw['prime2']) . "\r\n" . + ' ' . base64_encode($raw['exponent1']) . "\r\n" . + ' ' . base64_encode($raw['exponent2']) . "\r\n" . + ' ' . base64_encode($raw['coefficient']) . "\r\n" . + ' ' . base64_encode($raw['privateExponent']) . "\r\n" . + ''; + break; + case CRYPT_RSA_PRIVATE_FORMAT_PUTTY: + if ($num_primes != 2) { + return false; + } + $key = "PuTTY-User-Key-File-2: ssh-rsa\r\nEncryption: "; + $encryption = (!empty($this->password) || is_string($this->password)) ? 'aes256-cbc' : 'none'; + $key.= $encryption; + $key.= "\r\nComment: " . $this->comment . "\r\n"; + $public = pack('Na*Na*Na*', + strlen('ssh-rsa'), 'ssh-rsa', strlen($raw['publicExponent']), $raw['publicExponent'], strlen($raw['modulus']), $raw['modulus'] + ); + $source = pack('Na*Na*Na*Na*', + strlen('ssh-rsa'), 'ssh-rsa', strlen($encryption), $encryption, + strlen($this->comment), $this->comment, strlen($public), $public + ); + $public = base64_encode($public); + $key.= "Public-Lines: " . ((strlen($public) + 63) >> 6) . "\r\n"; + $key.= chunk_split($public, 64); + $private = pack('Na*Na*Na*Na*', + strlen($raw['privateExponent']), $raw['privateExponent'], strlen($raw['prime1']), $raw['prime1'], + strlen($raw['prime2']), $raw['prime2'], strlen($raw['coefficient']), $raw['coefficient'] + ); + if (empty($this->password) && !is_string($this->password)) { + $source.= pack('Na*', strlen($private), $private); + $hashkey = 'putty-private-key-file-mac-key'; + } else { + $private.= crypt_random_string(16 - (strlen($private) & 15)); + $source.= pack('Na*', strlen($private), $private); + if (!class_exists('Crypt_AES')) { + include_once 'Crypt/AES.php'; + } + $sequence = 0; + $symkey = ''; + while (strlen($symkey) < 32) { + $temp = pack('Na*', $sequence++, $this->password); + $symkey.= pack('H*', sha1($temp)); + } + $symkey = substr($symkey, 0, 32); + $crypto = new Crypt_AES(); + + $crypto->setKey($symkey); + $crypto->disablePadding(); + $private = $crypto->encrypt($private); + $hashkey = 'putty-private-key-file-mac-key' . $this->password; + } + + $private = base64_encode($private); + $key.= 'Private-Lines: ' . ((strlen($private) + 63) >> 6) . "\r\n"; + $key.= chunk_split($private, 64); + if (!class_exists('Crypt_Hash')) { + include_once 'Crypt/Hash.php'; + } + $hash = new Crypt_Hash('sha1'); + $hash->setKey(pack('H*', sha1($hashkey))); + $key.= 'Private-MAC: ' . bin2hex($hash->hash($source)) . "\r\n"; + + return $key; default: // eg. CRYPT_RSA_PRIVATE_FORMAT_PKCS1 $components = array(); foreach ($raw as $name => $value) { @@ -676,12 +829,12 @@ class Crypt_RSA { $RSAPrivateKey = pack('Ca*a*', CRYPT_RSA_ASN1_SEQUENCE, $this->_encodeLength(strlen($RSAPrivateKey)), $RSAPrivateKey); - if (!empty($this->password)) { - $iv = $this->_random(8); + if (!empty($this->password) || is_string($this->password)) { + $iv = crypt_random_string(8); $symkey = pack('H*', md5($this->password . $iv)); // symkey is short for symmetric key $symkey.= substr(pack('H*', md5($symkey . $this->password . $iv)), 0, 8); if (!class_exists('Crypt_TripleDES')) { - require_once('Crypt/TripleDES.php'); + include_once 'Crypt/TripleDES.php'; } $des = new Crypt_TripleDES(); $des->setKey($symkey); @@ -691,11 +844,11 @@ class Crypt_RSA { "Proc-Type: 4,ENCRYPTED\r\n" . "DEK-Info: DES-EDE3-CBC,$iv\r\n" . "\r\n" . - chunk_split(base64_encode($des->encrypt($RSAPrivateKey))) . + chunk_split(base64_encode($des->encrypt($RSAPrivateKey)), 64) . '-----END RSA PRIVATE KEY-----'; } else { $RSAPrivateKey = "-----BEGIN RSA PRIVATE KEY-----\r\n" . - chunk_split(base64_encode($RSAPrivateKey)) . + chunk_split(base64_encode($RSAPrivateKey), 64) . '-----END RSA PRIVATE KEY-----'; } @@ -719,16 +872,22 @@ class Crypt_RSA { switch ($this->publicKeyFormat) { case CRYPT_RSA_PUBLIC_FORMAT_RAW: return array('e' => $e->copy(), 'n' => $n->copy()); + case CRYPT_RSA_PUBLIC_FORMAT_XML: + return "\r\n" . + ' ' . base64_encode($modulus) . "\r\n" . + ' ' . base64_encode($publicExponent) . "\r\n" . + ''; + break; case CRYPT_RSA_PUBLIC_FORMAT_OPENSSH: // from : // string "ssh-rsa" // mpint e // mpint n $RSAPublicKey = pack('Na*Na*Na*', strlen('ssh-rsa'), 'ssh-rsa', strlen($publicExponent), $publicExponent, strlen($modulus), $modulus); - $RSAPublicKey = 'ssh-rsa ' . base64_encode($RSAPublicKey) . ' ' . CRYPT_RSA_COMMENT; + $RSAPublicKey = 'ssh-rsa ' . base64_encode($RSAPublicKey) . ' ' . $this->comment; return $RSAPublicKey; - default: // eg. CRYPT_RSA_PUBLIC_FORMAT_PKCS1 + default: // eg. CRYPT_RSA_PUBLIC_FORMAT_PKCS1_RAW or CRYPT_RSA_PUBLIC_FORMAT_PKCS1 // from : // RSAPublicKey ::= SEQUENCE { // modulus INTEGER, -- n @@ -744,8 +903,19 @@ class Crypt_RSA { $components['modulus'], $components['publicExponent'] ); + if ($this->publicKeyFormat == CRYPT_RSA_PUBLIC_FORMAT_PKCS1) { + // sequence(oid(1.2.840.113549.1.1.1), null)) = rsaEncryption. + $rsaOID = pack('H*', '300d06092a864886f70d0101010500'); // hex version of MA0GCSqGSIb3DQEBAQUA + $RSAPublicKey = chr(0) . $RSAPublicKey; + $RSAPublicKey = chr(3) . $this->_encodeLength(strlen($RSAPublicKey)) . $RSAPublicKey; + + $RSAPublicKey = pack('Ca*a*', + CRYPT_RSA_ASN1_SEQUENCE, $this->_encodeLength(strlen($rsaOID . $RSAPublicKey)), $rsaOID . $RSAPublicKey + ); + } + $RSAPublicKey = "-----BEGIN PUBLIC KEY-----\r\n" . - chunk_split(base64_encode($RSAPublicKey)) . + chunk_split(base64_encode($RSAPublicKey), 64) . '-----END PUBLIC KEY-----'; return $RSAPublicKey; @@ -764,6 +934,10 @@ class Crypt_RSA { */ function _parseKey($key, $type) { + if ($type != CRYPT_RSA_PUBLIC_FORMAT_RAW && !is_string($key)) { + return false; + } + switch ($type) { case CRYPT_RSA_PUBLIC_FORMAT_RAW: if (!is_array($key)) { @@ -796,7 +970,7 @@ class Crypt_RSA { case isset($key[1]): $components['modulus'] = $key[1]->copy(); } - return $components; + return isset($components['modulus']) && isset($components['publicExponent']) ? $components : false; case CRYPT_RSA_PRIVATE_FORMAT_PKCS1: case CRYPT_RSA_PUBLIC_FORMAT_PKCS1: /* Although PKCS#1 proposes a format that public and private keys can use, encrypting them is @@ -810,42 +984,50 @@ class Crypt_RSA { DES-EDE3-CBC as an algorithm, however, is not discussed anywhere, near as I can tell. DES-CBC and DES-EDE are discussed in RFC1423, however, DES-EDE3-CBC isn't, nor is its key derivation function. As is, the definitive authority on this encoding scheme isn't the IETF but rather OpenSSL's - own implementation. ie. the implementation *is* the standard and any bugs that may exist in that + own implementation. ie. the implementation *is* the standard and any bugs that may exist in that implementation are part of the standard, as well. * OpenSSL is the de facto standard. It's utilized by OpenSSH and other projects */ if (preg_match('#DEK-Info: (.+),(.+)#', $key, $matches)) { $iv = pack('H*', trim($matches[2])); $symkey = pack('H*', md5($this->password . substr($iv, 0, 8))); // symkey is short for symmetric key - $symkey.= substr(pack('H*', md5($symkey . $this->password . $iv)), 0, 8); - $ciphertext = preg_replace('#.+(\r|\n|\r\n)\1|[\r\n]|-.+-#s', '', $key); - $ciphertext = preg_match('#^[a-zA-Z\d/+]*={0,2}$#', $ciphertext) ? base64_decode($ciphertext) : false; + $symkey.= pack('H*', md5($symkey . $this->password . substr($iv, 0, 8))); + // remove the Proc-Type / DEK-Info sections as they're no longer needed + $key = preg_replace('#^(?:Proc-Type|DEK-Info): .*#m', '', $key); + $ciphertext = $this->_extractBER($key); if ($ciphertext === false) { $ciphertext = $key; } switch ($matches[1]) { + case 'AES-256-CBC': + if (!class_exists('Crypt_AES')) { + include_once 'Crypt/AES.php'; + } + $crypto = new Crypt_AES(); + break; case 'AES-128-CBC': if (!class_exists('Crypt_AES')) { - require_once('Crypt/AES.php'); + include_once 'Crypt/AES.php'; } $symkey = substr($symkey, 0, 16); $crypto = new Crypt_AES(); break; case 'DES-EDE3-CFB': if (!class_exists('Crypt_TripleDES')) { - require_once('Crypt/TripleDES.php'); + include_once 'Crypt/TripleDES.php'; } $crypto = new Crypt_TripleDES(CRYPT_DES_MODE_CFB); break; case 'DES-EDE3-CBC': if (!class_exists('Crypt_TripleDES')) { - require_once('Crypt/TripleDES.php'); + include_once 'Crypt/TripleDES.php'; } + $symkey = substr($symkey, 0, 24); $crypto = new Crypt_TripleDES(); break; case 'DES-CBC': if (!class_exists('Crypt_DES')) { - require_once('Crypt/DES.php'); + include_once 'Crypt/DES.php'; } $crypto = new Crypt_DES(); break; @@ -856,8 +1038,7 @@ class Crypt_RSA { $crypto->setIV($iv); $decoded = $crypto->decrypt($ciphertext); } else { - $decoded = preg_replace('#-.+-|[\r\n]#', '', $key); - $decoded = preg_match('#^[a-zA-Z\d/+]*={0,2}$#', $decoded) ? base64_decode($decoded) : false; + $decoded = $this->_extractBER($key); } if ($decoded !== false) { @@ -874,6 +1055,20 @@ class Crypt_RSA { } $tag = ord($this->_string_shift($key)); + /* intended for keys for which OpenSSL's asn1parse returns the following: + + 0:d=0 hl=4 l= 631 cons: SEQUENCE + 4:d=1 hl=2 l= 1 prim: INTEGER :00 + 7:d=1 hl=2 l= 13 cons: SEQUENCE + 9:d=2 hl=2 l= 9 prim: OBJECT :rsaEncryption + 20:d=2 hl=2 l= 0 prim: NULL + 22:d=1 hl=4 l= 609 prim: OCTET STRING */ + + if ($tag == CRYPT_RSA_ASN1_INTEGER && substr($key, 0, 3) == "\x01\x00\x30") { + $this->_string_shift($key, 3); + $tag = CRYPT_RSA_ASN1_SEQUENCE; + } + if ($tag == CRYPT_RSA_ASN1_SEQUENCE) { /* intended for keys for which OpenSSL's asn1parse returns the following: @@ -883,12 +1078,14 @@ class Crypt_RSA { 17:d=2 hl=2 l= 0 prim: NULL 19:d=1 hl=4 l= 271 prim: BIT STRING */ $this->_string_shift($key, $this->_decodeLength($key)); - $this->_string_shift($key); // skip over the BIT STRING tag - $this->_decodeLength($key); // skip over the BIT STRING length + $tag = ord($this->_string_shift($key)); // skip over the BIT STRING / OCTET STRING tag + $this->_decodeLength($key); // skip over the BIT STRING / OCTET STRING length // "The initial octet shall encode, as an unsigned binary integer wtih bit 1 as the least significant bit, the number of - // unused bits in teh final subsequent octet. The number shall be in the range zero to seven." + // unused bits in the final subsequent octet. The number shall be in the range zero to seven." // -- http://www.itu.int/ITU-T/studygroups/com17/languages/X.690-0207.pdf (section 8.6.2.2) - $this->_string_shift($key); + if ($tag == CRYPT_RSA_ASN1_BITSTRING) { + $this->_string_shift($key); + } if (ord($this->_string_shift($key)) != CRYPT_RSA_ASN1_SEQUENCE) { return false; } @@ -904,10 +1101,10 @@ class Crypt_RSA { $length = $this->_decodeLength($key); $temp = $this->_string_shift($key, $length); if (strlen($temp) != 1 || ord($temp) > 2) { - $components['modulus'] = new Math_BigInteger($temp, -256); + $components['modulus'] = new Math_BigInteger($temp, 256); $this->_string_shift($key); // skip over CRYPT_RSA_ASN1_INTEGER $length = $this->_decodeLength($key); - $components[$type == CRYPT_RSA_PUBLIC_FORMAT_PKCS1 ? 'publicExponent' : 'privateExponent'] = new Math_BigInteger($this->_string_shift($key, $length), -256); + $components[$type == CRYPT_RSA_PUBLIC_FORMAT_PKCS1 ? 'publicExponent' : 'privateExponent'] = new Math_BigInteger($this->_string_shift($key, $length), 256); return $components; } @@ -915,28 +1112,28 @@ class Crypt_RSA { return false; } $length = $this->_decodeLength($key); - $components['modulus'] = new Math_BigInteger($this->_string_shift($key, $length), -256); + $components['modulus'] = new Math_BigInteger($this->_string_shift($key, $length), 256); $this->_string_shift($key); $length = $this->_decodeLength($key); - $components['publicExponent'] = new Math_BigInteger($this->_string_shift($key, $length), -256); + $components['publicExponent'] = new Math_BigInteger($this->_string_shift($key, $length), 256); $this->_string_shift($key); $length = $this->_decodeLength($key); - $components['privateExponent'] = new Math_BigInteger($this->_string_shift($key, $length), -256); + $components['privateExponent'] = new Math_BigInteger($this->_string_shift($key, $length), 256); $this->_string_shift($key); $length = $this->_decodeLength($key); - $components['primes'] = array(1 => new Math_BigInteger($this->_string_shift($key, $length), -256)); + $components['primes'] = array(1 => new Math_BigInteger($this->_string_shift($key, $length), 256)); $this->_string_shift($key); $length = $this->_decodeLength($key); - $components['primes'][] = new Math_BigInteger($this->_string_shift($key, $length), -256); + $components['primes'][] = new Math_BigInteger($this->_string_shift($key, $length), 256); $this->_string_shift($key); $length = $this->_decodeLength($key); - $components['exponents'] = array(1 => new Math_BigInteger($this->_string_shift($key, $length), -256)); + $components['exponents'] = array(1 => new Math_BigInteger($this->_string_shift($key, $length), 256)); $this->_string_shift($key); $length = $this->_decodeLength($key); - $components['exponents'][] = new Math_BigInteger($this->_string_shift($key, $length), -256); + $components['exponents'][] = new Math_BigInteger($this->_string_shift($key, $length), 256); $this->_string_shift($key); $length = $this->_decodeLength($key); - $components['coefficients'] = array(2 => new Math_BigInteger($this->_string_shift($key, $length), -256)); + $components['coefficients'] = array(2 => new Math_BigInteger($this->_string_shift($key, $length), 256)); if (!empty($key)) { if (ord($this->_string_shift($key)) != CRYPT_RSA_ASN1_SEQUENCE) { @@ -950,40 +1147,56 @@ class Crypt_RSA { $this->_decodeLength($key); $key = substr($key, 1); $length = $this->_decodeLength($key); - $components['primes'][] = new Math_BigInteger($this->_string_shift($key, $length), -256); + $components['primes'][] = new Math_BigInteger($this->_string_shift($key, $length), 256); $this->_string_shift($key); $length = $this->_decodeLength($key); - $components['exponents'][] = new Math_BigInteger($this->_string_shift($key, $length), -256); + $components['exponents'][] = new Math_BigInteger($this->_string_shift($key, $length), 256); $this->_string_shift($key); $length = $this->_decodeLength($key); - $components['coefficients'][] = new Math_BigInteger($this->_string_shift($key, $length), -256); + $components['coefficients'][] = new Math_BigInteger($this->_string_shift($key, $length), 256); } } return $components; case CRYPT_RSA_PUBLIC_FORMAT_OPENSSH: - $key = base64_decode(preg_replace('#^ssh-rsa | .+$#', '', $key)); + $parts = explode(' ', $key, 3); + + $key = isset($parts[1]) ? base64_decode($parts[1]) : false; if ($key === false) { return false; } + $comment = isset($parts[2]) ? $parts[2] : false; + $cleanup = substr($key, 0, 11) == "\0\0\0\7ssh-rsa"; + if (strlen($key) <= 4) { + return false; + } extract(unpack('Nlength', $this->_string_shift($key, 4))); $publicExponent = new Math_BigInteger($this->_string_shift($key, $length), -256); + if (strlen($key) <= 4) { + return false; + } extract(unpack('Nlength', $this->_string_shift($key, 4))); $modulus = new Math_BigInteger($this->_string_shift($key, $length), -256); if ($cleanup && strlen($key)) { + if (strlen($key) <= 4) { + return false; + } extract(unpack('Nlength', $this->_string_shift($key, 4))); - return array( - 'modulus' => new Math_BigInteger($this->_string_shift($key, $length), -256), - 'publicExponent' => $modulus + $realModulus = new Math_BigInteger($this->_string_shift($key, $length), -256); + return strlen($key) ? false : array( + 'modulus' => $realModulus, + 'publicExponent' => $modulus, + 'comment' => $comment ); } else { - return array( + return strlen($key) ? false : array( 'modulus' => $modulus, - 'publicExponent' => $publicExponent + 'publicExponent' => $publicExponent, + 'comment' => $comment ); } // http://www.w3.org/TR/xmldsig-core/#sec-RSAKeyValue @@ -996,11 +1209,12 @@ class Crypt_RSA { xml_set_object($xml, $this); xml_set_element_handler($xml, '_start_element_handler', '_stop_element_handler'); xml_set_character_data_handler($xml, '_data_handler'); - if (!xml_parse($xml, $key)) { + // add to account for "dangling" tags like ... that are sometimes added + if (!xml_parse($xml, '' . $key . '')) { return false; } - return $this->components; + return isset($this->components['modulus']) && isset($this->components['publicExponent']) ? $this->components : false; // from PuTTY's SSHPUBK.C case CRYPT_RSA_PRIVATE_FORMAT_PUTTY: $components = array(); @@ -1010,6 +1224,7 @@ class Crypt_RSA { return false; } $encryption = trim(preg_replace('#Encryption: (.+)#', '$1', $key[1])); + $comment = trim(preg_replace('#Comment: (.+)#', '$1', $key[2])); $publicLength = trim(preg_replace('#Public-Lines: (\d+)#', '$1', $key[3])); $public = base64_decode(implode('', array_map('trim', array_slice($key, 4, $publicLength)))); @@ -1025,7 +1240,7 @@ class Crypt_RSA { switch ($encryption) { case 'aes256-cbc': if (!class_exists('Crypt_AES')) { - require_once('Crypt/AES.php'); + include_once 'Crypt/AES.php'; } $symkey = ''; $sequence = 0; @@ -1047,10 +1262,19 @@ class Crypt_RSA { } extract(unpack('Nlength', $this->_string_shift($private, 4))); + if (strlen($private) < $length) { + return false; + } $components['privateExponent'] = new Math_BigInteger($this->_string_shift($private, $length), -256); extract(unpack('Nlength', $this->_string_shift($private, 4))); + if (strlen($private) < $length) { + return false; + } $components['primes'] = array(1 => new Math_BigInteger($this->_string_shift($private, $length), -256)); extract(unpack('Nlength', $this->_string_shift($private, 4))); + if (strlen($private) < $length) { + return false; + } $components['primes'][] = new Math_BigInteger($this->_string_shift($private, $length), -256); $temp = $components['primes'][1]->subtract($this->one); @@ -1059,12 +1283,28 @@ class Crypt_RSA { $components['exponents'][] = $components['publicExponent']->modInverse($temp); extract(unpack('Nlength', $this->_string_shift($private, 4))); + if (strlen($private) < $length) { + return false; + } $components['coefficients'] = array(2 => new Math_BigInteger($this->_string_shift($private, $length), -256)); return $components; } } + /** + * Returns the key size + * + * More specifically, this returns the size of the modulo in bits. + * + * @access public + * @return Integer + */ + function getSize() + { + return !isset($this->modulus) ? 0 : strlen($this->modulus->toBits()); + } + /** * Start Element Handler * @@ -1102,9 +1342,6 @@ class Crypt_RSA { break; case 'D': $this->current = &$this->components['privateExponent']; - break; - default: - unset($this->current); } $this->current = ''; } @@ -1120,11 +1357,10 @@ class Crypt_RSA { */ function _stop_element_handler($parser, $name) { - //$name = strtoupper($name); - if ($name == 'RSAKEYVALUE') { - return; + if (isset($this->current)) { + $this->current = new Math_BigInteger(base64_decode($this->current), 256); + unset($this->current); } - $this->current = new Math_BigInteger(base64_decode($this->current), 256); } /** @@ -1155,6 +1391,53 @@ class Crypt_RSA { */ function loadKey($key, $type = false) { + if (is_object($key) && strtolower(get_class($key)) == 'crypt_rsa') { + $this->privateKeyFormat = $key->privateKeyFormat; + $this->publicKeyFormat = $key->publicKeyFormat; + $this->k = $key->k; + $this->hLen = $key->hLen; + $this->sLen = $key->sLen; + $this->mgfHLen = $key->mgfHLen; + $this->encryptionMode = $key->encryptionMode; + $this->signatureMode = $key->signatureMode; + $this->password = $key->password; + $this->configFile = $key->configFile; + $this->comment = $key->comment; + + if (is_object($key->hash)) { + $this->hash = new Crypt_Hash($key->hash->getHash()); + } + if (is_object($key->mgfHash)) { + $this->mgfHash = new Crypt_Hash($key->mgfHash->getHash()); + } + + if (is_object($key->modulus)) { + $this->modulus = $key->modulus->copy(); + } + if (is_object($key->exponent)) { + $this->exponent = $key->exponent->copy(); + } + if (is_object($key->publicExponent)) { + $this->publicExponent = $key->publicExponent->copy(); + } + + $this->primes = array(); + $this->exponents = array(); + $this->coefficients = array(); + + foreach ($this->primes as $prime) { + $this->primes[] = $prime->copy(); + } + foreach ($this->exponents as $exponent) { + $this->exponents[] = $exponent->copy(); + } + foreach ($this->coefficients as $coefficient) { + $this->coefficients[] = $coefficient->copy(); + } + + return true; + } + if ($type === false) { $types = array( CRYPT_RSA_PUBLIC_FORMAT_RAW, @@ -1169,7 +1452,7 @@ class Crypt_RSA { break; } } - + } else { $components = $this->_parseKey($key, $type); } @@ -1178,6 +1461,9 @@ class Crypt_RSA { return false; } + if (isset($components['comment']) && $components['comment'] !== false) { + $this->comment = $components['comment']; + } $this->modulus = $components['modulus']; $this->k = strlen($this->modulus->toBytes()); $this->exponent = isset($components['privateExponent']) ? $components['privateExponent'] : $components['publicExponent']; @@ -1200,14 +1486,14 @@ class Crypt_RSA { * Sets the password * * Private keys can be encrypted with a password. To unset the password, pass in the empty string or false. - * Or rather, pass in $password such that empty($password) is true. + * Or rather, pass in $password such that empty($password) && !is_string($password) is true. * * @see createKey() * @see loadKey() * @access public * @param String $password */ - function setPassword($password) + function setPassword($password = false) { $this->password = $password; } @@ -1227,17 +1513,47 @@ class Crypt_RSA { * * @see getPublicKey() * @access public - * @param String $key + * @param String $key optional * @param Integer $type optional * @return Boolean */ - function setPublicKey($key, $type = CRYPT_RSA_PUBLIC_FORMAT_PKCS1) + function setPublicKey($key = false, $type = false) { - $components = $this->_parseKey($key, $type); + // if a public key has already been loaded return false + if (!empty($this->publicExponent)) { + return false; + } + + if ($key === false && !empty($this->modulus)) { + $this->publicExponent = $this->exponent; + return true; + } + + if ($type === false) { + $types = array( + CRYPT_RSA_PUBLIC_FORMAT_RAW, + CRYPT_RSA_PUBLIC_FORMAT_PKCS1, + CRYPT_RSA_PUBLIC_FORMAT_XML, + CRYPT_RSA_PUBLIC_FORMAT_OPENSSH + ); + foreach ($types as $type) { + $components = $this->_parseKey($key, $type); + if ($components !== false) { + break; + } + } + } else { + $components = $this->_parseKey($key, $type); + } + + if ($components === false) { + return false; + } if (empty($this->modulus) || !$this->modulus->equals($components['modulus'])) { - user_error('Trying to load a public key? Use loadKey() instead. It\'s called loadKey() and not loadPrivateKey() for a reason.', E_USER_NOTICE); - return false; + $this->modulus = $components['modulus']; + $this->exponent = $this->publicExponent = $components['publicExponent']; + return true; } $this->publicExponent = $components['publicExponent']; @@ -1270,6 +1586,80 @@ class Crypt_RSA { return $temp; } + /** + * Returns the private key + * + * The private key is only returned if the currently loaded key contains the constituent prime numbers. + * + * @see getPublicKey() + * @access public + * @param String $key + * @param Integer $type optional + */ + function getPrivateKey($type = CRYPT_RSA_PUBLIC_FORMAT_PKCS1) + { + if (empty($this->primes)) { + return false; + } + + $oldFormat = $this->privateKeyFormat; + $this->privateKeyFormat = $type; + $temp = $this->_convertPrivateKey($this->modulus, $this->publicExponent, $this->exponent, $this->primes, $this->exponents, $this->coefficients); + $this->privateKeyFormat = $oldFormat; + return $temp; + } + + /** + * Returns a minimalistic private key + * + * Returns the private key without the prime number constituants. Structurally identical to a public key that + * hasn't been set as the public key + * + * @see getPrivateKey() + * @access private + * @param String $key + * @param Integer $type optional + */ + function _getPrivatePublicKey($mode = CRYPT_RSA_PUBLIC_FORMAT_PKCS1) + { + if (empty($this->modulus) || empty($this->exponent)) { + return false; + } + + $oldFormat = $this->publicKeyFormat; + $this->publicKeyFormat = $mode; + $temp = $this->_convertPublicKey($this->modulus, $this->exponent); + $this->publicKeyFormat = $oldFormat; + return $temp; + } + + /** + * __toString() magic method + * + * @access public + */ + function __toString() + { + $key = $this->getPrivateKey($this->privateKeyFormat); + if ($key !== false) { + return $key; + } + $key = $this->_getPrivatePublicKey($this->publicKeyFormat); + return $key !== false ? $key : ''; + } + + /** + * __clone() magic method + * + * @access public + */ + function __clone() + { + $key = new Crypt_RSA(); + $key->loadKey($this); + return $key; + } + /** * Generates the smallest and largest numbers requiring $bits bits * @@ -1300,7 +1690,7 @@ class Crypt_RSA { * DER-decode the length * * DER supports lengths up to (2**8)**127, however, we'll only support lengths up to (2**8)**4. See - * {@link http://itu.int/ITU-T/studygroups/com17/languages/X.690-0207.pdf#p=13 X.690 § 8.1.3} for more information. + * {@link http://itu.int/ITU-T/studygroups/com17/languages/X.690-0207.pdf#p=13 X.690 paragraph 8.1.3} for more information. * * @access private * @param String $string @@ -1321,7 +1711,7 @@ class Crypt_RSA { * DER-encode the length * * DER supports lengths up to (2**8)**127, however, we'll only support lengths up to (2**8)**4. See - * {@link http://itu.int/ITU-T/studygroups/com17/languages/X.690-0207.pdf#p=13 X.690 § 8.1.3} for more information. + * {@link http://itu.int/ITU-T/studygroups/com17/languages/X.690-0207.pdf#p=13 X.690 paragraph 8.1.3} for more information. * * @access private * @param Integer $length @@ -1450,31 +1840,6 @@ class Crypt_RSA { $this->sLen = $sLen; } - /** - * Generates a random string x bytes long - * - * @access public - * @param Integer $bytes - * @param optional Integer $nonzero - * @return String - */ - function _random($bytes, $nonzero = false) - { - $temp = ''; - if ($nonzero) { - for ($i = 0; $i < $bytes; $i++) { - $temp.= chr(crypt_random(1, 255)); - } - } else { - $ints = ($bytes + 1) >> 2; - for ($i = 0; $i < $ints; $i++) { - $temp.= pack('N', crypt_random()); - } - $temp = substr($temp, 0, $bytes); - } - return $temp; - } - /** * Integer-to-Octet-String primitive * @@ -1489,7 +1854,7 @@ class Crypt_RSA { { $x = $x->toBytes(); if (strlen($x) > $xLen) { - user_error('Integer too large', E_USER_NOTICE); + user_error('Integer too large'); return false; } return str_pad($x, $xLen, chr(0), STR_PAD_LEFT); @@ -1557,7 +1922,6 @@ class Crypt_RSA { } $one = new Math_BigInteger(1); - $one->setRandomGenerator('crypt_random'); $r = $one->random($one, $smallest->subtract($one)); @@ -1611,6 +1975,34 @@ class Crypt_RSA { return $x; } + /** + * Performs blinded RSA equality testing + * + * Protects against a particular type of timing attack described. + * + * See {@link http://codahale.com/a-lesson-in-timing-attacks/ A Lesson In Timing Attacks (or, Don't use MessageDigest.isEquals)} + * + * Thanks for the heads up singpolyma! + * + * @access private + * @param String $x + * @param String $y + * @return Boolean + */ + function _equals($x, $y) + { + if (strlen($x) != strlen($y)) { + return false; + } + + $result = 0; + for ($i = 0; $i < strlen($x); $i++) { + $result |= ord($x[$i]) ^ ord($y[$i]); + } + + return $result == 0; + } + /** * RSAEP * @@ -1623,7 +2015,7 @@ class Crypt_RSA { function _rsaep($m) { if ($m->compare($this->zero) < 0 || $m->compare($this->modulus) > 0) { - user_error('Message representative out of range', E_USER_NOTICE); + user_error('Message representative out of range'); return false; } return $this->_exponentiate($m); @@ -1641,7 +2033,7 @@ class Crypt_RSA { function _rsadp($c) { if ($c->compare($this->zero) < 0 || $c->compare($this->modulus) > 0) { - user_error('Ciphertext representative out of range', E_USER_NOTICE); + user_error('Ciphertext representative out of range'); return false; } return $this->_exponentiate($c); @@ -1659,7 +2051,7 @@ class Crypt_RSA { function _rsasp1($m) { if ($m->compare($this->zero) < 0 || $m->compare($this->modulus) > 0) { - user_error('Message representative out of range', E_USER_NOTICE); + user_error('Message representative out of range'); return false; } return $this->_exponentiate($m); @@ -1677,7 +2069,7 @@ class Crypt_RSA { function _rsavp1($s) { if ($s->compare($this->zero) < 0 || $s->compare($this->modulus) > 0) { - user_error('Signature representative out of range', E_USER_NOTICE); + user_error('Signature representative out of range'); return false; } return $this->_exponentiate($s); @@ -1728,7 +2120,7 @@ class Crypt_RSA { // be output. if ($mLen > $this->k - 2 * $this->hLen - 2) { - user_error('Message too long', E_USER_NOTICE); + user_error('Message too long'); return false; } @@ -1737,7 +2129,7 @@ class Crypt_RSA { $lHash = $this->hash->hash($l); $ps = str_repeat(chr(0), $this->k - $mLen - 2 * $this->hLen - 2); $db = $lHash . $ps . chr(1) . $m; - $seed = $this->_random($this->hLen); + $seed = crypt_random_string($this->hLen); $dbMask = $this->_mgf1($seed, $this->k - $this->hLen - 1); $maskedDB = $db ^ $dbMask; $seedMask = $this->_mgf1($maskedDB, $this->hLen); @@ -1760,7 +2152,7 @@ class Crypt_RSA { * * See {@link http://tools.ietf.org/html/rfc3447#section-7.1.2 RFC3447#section-7.1.2}. The fact that the error * messages aren't distinguishable from one another hinders debugging, but, to quote from RFC3447#section-7.1.2: - * + * * Note. Care must be taken to ensure that an opponent cannot * distinguish the different error conditions in Step 3.g, whether by * error message or timing, or, more generally, learn partial @@ -1789,7 +2181,7 @@ class Crypt_RSA { // be output. if (strlen($c) != $this->k || $this->k < 2 * $this->hLen + 2) { - user_error('Decryption error', E_USER_NOTICE); + user_error('Decryption error'); return false; } @@ -1798,7 +2190,7 @@ class Crypt_RSA { $c = $this->_os2ip($c); $m = $this->_rsadp($c); if ($m === false) { - user_error('Decryption error', E_USER_NOTICE); + user_error('Decryption error'); return false; } $em = $this->_i2osp($m, $this->k); @@ -1816,12 +2208,12 @@ class Crypt_RSA { $lHash2 = substr($db, 0, $this->hLen); $m = substr($db, $this->hLen); if ($lHash != $lHash2) { - user_error('Decryption error', E_USER_NOTICE); + user_error('Decryption error'); return false; } $m = ltrim($m, chr(0)); if (ord($m[0]) != 1) { - user_error('Decryption error', E_USER_NOTICE); + user_error('Decryption error'); return false; } @@ -1846,14 +2238,27 @@ class Crypt_RSA { // Length checking if ($mLen > $this->k - 11) { - user_error('Message too long', E_USER_NOTICE); + user_error('Message too long'); return false; } // EME-PKCS1-v1_5 encoding - $ps = $this->_random($this->k - $mLen - 3, true); - $em = chr(0) . chr(2) . $ps . chr(0) . $m; + $psLen = $this->k - $mLen - 3; + $ps = ''; + while (strlen($ps) != $psLen) { + $temp = crypt_random_string($psLen - strlen($ps)); + $temp = str_replace("\x00", '', $temp); + $ps.= $temp; + } + $type = 2; + // see the comments of _rsaes_pkcs1_v1_5_decrypt() to understand why this is being done + if (defined('CRYPT_RSA_PKCS15_COMPAT') && (!isset($this->publicExponent) || $this->exponent !== $this->publicExponent)) { + $type = 1; + // "The padding string PS shall consist of k-3-||D|| octets. ... for block type 01, they shall have value FF" + $ps = str_repeat("\xFF", $psLen); + } + $em = chr(0) . chr($type) . $ps . chr(0) . $m; // RSA encryption $m = $this->_os2ip($em); @@ -1874,7 +2279,7 @@ class Crypt_RSA { * The reason being that RFC2313#section-8.1 (PKCS#1 v1.5) states that ciphertext's encrypted by the * private key should have the second byte set to either 0 or 1 and that ciphertext's encrypted by the * public key should have the second byte set to 2. In RFC3447 (PKCS#1 v2.1), the second byte is supposed - * to be 2 regardless of which key is used. for compatability purposes, we'll just check to make sure the + * to be 2 regardless of which key is used. For compatability purposes, we'll just check to make sure the * second byte is 2 or less. If it is, we'll accept the decrypted string as valid. * * As a consequence of this, a private key encrypted ciphertext produced with Crypt_RSA may not decrypt @@ -1890,7 +2295,7 @@ class Crypt_RSA { // Length checking if (strlen($c) != $this->k) { // or if k < 11 - user_error('Decryption error', E_USER_NOTICE); + user_error('Decryption error'); return false; } @@ -1900,7 +2305,7 @@ class Crypt_RSA { $m = $this->_rsadp($c); if ($m === false) { - user_error('Decryption error', E_USER_NOTICE); + user_error('Decryption error'); return false; } $em = $this->_i2osp($m, $this->k); @@ -1908,7 +2313,7 @@ class Crypt_RSA { // EME-PKCS1-v1_5 decoding if (ord($em[0]) != 0 || ord($em[1]) > 2) { - user_error('Decryption error', E_USER_NOTICE); + user_error('Decryption error'); return false; } @@ -1916,7 +2321,7 @@ class Crypt_RSA { $m = substr($em, strlen($ps) + 3); if (strlen($ps) < 8) { - user_error('Decryption error', E_USER_NOTICE); + user_error('Decryption error'); return false; } @@ -1944,11 +2349,11 @@ class Crypt_RSA { $mHash = $this->hash->hash($m); if ($emLen < $this->hLen + $sLen + 2) { - user_error('Encoding error', E_USER_NOTICE); + user_error('Encoding error'); return false; } - $salt = $this->_random($sLen); + $salt = crypt_random_string($sLen); $m2 = "\0\0\0\0\0\0\0\0" . $mHash . $salt; $h = $this->hash->hash($m2); $ps = str_repeat(chr(0), $emLen - $sLen - $this->hLen - 2); @@ -2005,7 +2410,7 @@ class Crypt_RSA { $salt = substr($db, $temp + 1); // should be $sLen long $m2 = "\0\0\0\0\0\0\0\0" . $mHash . $salt; $h2 = $this->hash->hash($m2); - return $h == $h2; + return $this->_equals($h, $h2); } /** @@ -2049,7 +2454,7 @@ class Crypt_RSA { // Length checking if (strlen($s) != $this->k) { - user_error('Invalid signature', E_USER_NOTICE); + user_error('Invalid signature'); return false; } @@ -2060,12 +2465,12 @@ class Crypt_RSA { $s2 = $this->_os2ip($s); $m2 = $this->_rsavp1($s2); if ($m2 === false) { - user_error('Invalid signature', E_USER_NOTICE); + user_error('Invalid signature'); return false; } $em = $this->_i2osp($m2, $modBits >> 3); if ($em === false) { - user_error('Invalid signature', E_USER_NOTICE); + user_error('Invalid signature'); return false; } @@ -2115,7 +2520,7 @@ class Crypt_RSA { $tLen = strlen($t); if ($emLen < $tLen + 11) { - user_error('Intended encoded message length too short', E_USER_NOTICE); + user_error('Intended encoded message length too short'); return false; } @@ -2141,7 +2546,7 @@ class Crypt_RSA { $em = $this->_emsa_pkcs1_v1_5_encode($m, $this->k); if ($em === false) { - user_error('RSA modulus too short', E_USER_NOTICE); + user_error('RSA modulus too short'); return false; } @@ -2170,7 +2575,7 @@ class Crypt_RSA { // Length checking if (strlen($s) != $this->k) { - user_error('Invalid signature', E_USER_NOTICE); + user_error('Invalid signature'); return false; } @@ -2179,12 +2584,12 @@ class Crypt_RSA { $s = $this->_os2ip($s); $m2 = $this->_rsavp1($s); if ($m2 === false) { - user_error('Invalid signature', E_USER_NOTICE); + user_error('Invalid signature'); return false; } $em = $this->_i2osp($m2, $this->k); if ($em === false) { - user_error('Invalid signature', E_USER_NOTICE); + user_error('Invalid signature'); return false; } @@ -2192,13 +2597,12 @@ class Crypt_RSA { $em2 = $this->_emsa_pkcs1_v1_5_encode($m, $this->k); if ($em2 === false) { - user_error('RSA modulus too short', E_USER_NOTICE); + user_error('RSA modulus too short'); return false; } // Compare - - return $em === $em2; + return $this->_equals($em, $em2); } /** @@ -2227,6 +2631,28 @@ class Crypt_RSA { $this->signatureMode = $mode; } + /** + * Set public key comment. + * + * @access public + * @param String $comment + */ + function setComment($comment) + { + $this->comment = $comment; + } + + /** + * Get public key comment. + * + * @access public + * @return String + */ + function getComment() + { + return $this->comment; + } + /** * Encryption * @@ -2285,6 +2711,8 @@ class Crypt_RSA { } $ciphertext = str_split($ciphertext, $this->k); + $ciphertext[count($ciphertext) - 1] = str_pad($ciphertext[count($ciphertext) - 1], $this->k, chr(0), STR_PAD_LEFT); + $plaintext = ''; switch ($this->encryptionMode) { @@ -2353,4 +2781,31 @@ class Crypt_RSA { return $this->_rsassa_pss_verify($message, $signature); } } -} \ No newline at end of file + + /** + * Extract raw BER from Base64 encoding + * + * @access private + * @param String $str + * @return String + */ + function _extractBER($str) + { + /* X.509 certs are assumed to be base64 encoded but sometimes they'll have additional things in them + * above and beyond the ceritificate. + * ie. some may have the following preceding the -----BEGIN CERTIFICATE----- line: + * + * Bag Attributes + * localKeyID: 01 00 00 00 + * subject=/O=organization/OU=org unit/CN=common name + * issuer=/O=organization/CN=common name + */ + $temp = preg_replace('#.*?^-+[^-]+-+#ms', '', $str, 1); + // remove the -----BEGIN CERTIFICATE----- and -----END CERTIFICATE----- stuff + $temp = preg_replace('#-+[^-]+-+#', '', $temp); + // remove new lines + $temp = str_replace(array("\r", "\n", ' '), '', $temp); + $temp = preg_match('#^[a-zA-Z\d/+]*={0,2}$#', $temp) ? base64_decode($temp) : false; + return $temp != false ? $temp : $str; + } +} diff --git a/lam/lib/3rdParty/phpseclib/Crypt/Random.php b/lam/lib/3rdParty/phpseclib/Crypt/Random.php index 1ffc7465..977ec797 100644 --- a/lam/lib/3rdParty/phpseclib/Crypt/Random.php +++ b/lam/lib/3rdParty/phpseclib/Crypt/Random.php @@ -1,5 +1,4 @@ * * @@ -21,10 +20,10 @@ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: - * + * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. - * + * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE @@ -33,78 +32,160 @@ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. * - * @category Crypt - * @package Crypt_Random - * @author Jim Wigginton - * @copyright MMVII Jim Wigginton - * @license http://www.opensource.org/licenses/mit-license.html MIT License - * @version $Id$ - * @link http://phpseclib.sourceforge.net + * @category Crypt + * @package Crypt_Random + * @author Jim Wigginton + * @copyright MMVII Jim Wigginton + * @license http://www.opensource.org/licenses/mit-license.html MIT License + * @link http://phpseclib.sourceforge.net */ /** - * Generate a random value. + * "Is Windows" test * - * On 32-bit machines, the largest distance that can exist between $min and $max is 2**31. - * If $min and $max are farther apart than that then the last ($max - range) numbers. + * @access private + */ +define('CRYPT_RANDOM_IS_WINDOWS', strtoupper(substr(PHP_OS, 0, 3)) === 'WIN'); + +/** + * Generate a random string. * - * Depending on how this is being used, it may be worth while to write a replacement. For example, - * a PHP-based web app that stores its data in an SQL database can collect more entropy than this function - * can. + * Although microoptimizations are generally discouraged as they impair readability this function is ripe with + * microoptimizations because this function has the potential of being called a huge number of times. + * eg. for RSA key generation. * - * @param optional Integer $min - * @param optional Integer $max - * @return Integer + * @param Integer $length + * @return String * @access public */ -function crypt_random($min = 0, $max = 0x7FFFFFFF) +function crypt_random_string($length) { - if ($min == $max) { - return $min; - } - - // see http://en.wikipedia.org/wiki//dev/random - static $urandom = true; - if ($urandom === true) { - // Warning's will be output unles the error suppression operator is used. Errors such as - // "open_basedir restriction in effect", "Permission denied", "No such file or directory", etc. - $urandom = @fopen('/dev/urandom', 'rb'); - } - if (!is_bool($urandom)) { - extract(unpack('Nrandom', fread($urandom, 4))); - - // say $min = 0 and $max = 3. if we didn't do abs() then we could have stuff like this: - // -4 % 3 + 0 = -1, even though -1 < $min - return abs($random) % ($max - $min) + $min; - } - - /* Prior to PHP 4.2.0, mt_srand() had to be called before mt_rand() could be called. - Prior to PHP 5.2.6, mt_rand()'s automatic seeding was subpar, as elaborated here: - - http://www.suspekt.org/2008/08/17/mt_srand-and-not-so-random-numbers/ - - The seeding routine is pretty much ripped from PHP's own internal GENERATE_SEED() macro: - - http://svn.php.net/viewvc/php/php-src/branches/PHP_5_3_2/ext/standard/php_rand.h?view=markup */ - if (version_compare(PHP_VERSION, '5.2.5', '<=')) { - static $seeded; - if (!isset($seeded)) { - $seeded = true; - mt_srand(fmod(time() * getmypid(), 0x7FFFFFFF) ^ fmod(1000000 * lcg_value(), 0x7FFFFFFF)); + if (CRYPT_RANDOM_IS_WINDOWS) { + // method 1. prior to PHP 5.3 this would call rand() on windows hence the function_exists('class_alias') call. + // ie. class_alias is a function that was introduced in PHP 5.3 + if (function_exists('mcrypt_create_iv') && function_exists('class_alias')) { + return mcrypt_create_iv($length); + } + // method 2. openssl_random_pseudo_bytes was introduced in PHP 5.3.0 but prior to PHP 5.3.4 there was, + // to quote , "possible blocking behavior". as of 5.3.4 + // openssl_random_pseudo_bytes and mcrypt_create_iv do the exact same thing on Windows. ie. they both + // call php_win32_get_random_bytes(): + // + // https://github.com/php/php-src/blob/7014a0eb6d1611151a286c0ff4f2238f92c120d6/ext/openssl/openssl.c#L5008 + // https://github.com/php/php-src/blob/7014a0eb6d1611151a286c0ff4f2238f92c120d6/ext/mcrypt/mcrypt.c#L1392 + // + // php_win32_get_random_bytes() is defined thusly: + // + // https://github.com/php/php-src/blob/7014a0eb6d1611151a286c0ff4f2238f92c120d6/win32/winutil.c#L80 + // + // we're calling it, all the same, in the off chance that the mcrypt extension is not available + if (function_exists('openssl_random_pseudo_bytes') && version_compare(PHP_VERSION, '5.3.4', '>=')) { + return openssl_random_pseudo_bytes($length); + } + } else { + // method 1. the fastest + if (function_exists('openssl_random_pseudo_bytes')) { + return openssl_random_pseudo_bytes($length); + } + // method 2 + static $fp = true; + if ($fp === true) { + // warning's will be output unles the error suppression operator is used. errors such as + // "open_basedir restriction in effect", "Permission denied", "No such file or directory", etc. + $fp = @fopen('/dev/urandom', 'rb'); + } + if ($fp !== true && $fp !== false) { // surprisingly faster than !is_bool() or is_resource() + return fread($fp, $length); + } + // method 3. pretty much does the same thing as method 2 per the following url: + // https://github.com/php/php-src/blob/7014a0eb6d1611151a286c0ff4f2238f92c120d6/ext/mcrypt/mcrypt.c#L1391 + // surprisingly slower than method 2. maybe that's because mcrypt_create_iv does a bunch of error checking that we're + // not doing. regardless, this'll only be called if this PHP script couldn't open /dev/urandom due to open_basedir + // restrictions or some such + if (function_exists('mcrypt_create_iv')) { + return mcrypt_create_iv($length, MCRYPT_DEV_URANDOM); } } + // at this point we have no choice but to use a pure-PHP CSPRNG - static $crypto; - - // The CSPRNG's Yarrow and Fortuna periodically reseed. This function can be reseeded by hitting F5 - // in the browser and reloading the page. - - if (!isset($crypto)) { - $key = $iv = ''; - for ($i = 0; $i < 8; $i++) { - $key.= pack('n', mt_rand(0, 0xFFFF)); - $iv .= pack('n', mt_rand(0, 0xFFFF)); + // cascade entropy across multiple PHP instances by fixing the session and collecting all + // environmental variables, including the previous session data and the current session + // data. + // + // mt_rand seeds itself by looking at the PID and the time, both of which are (relatively) + // easy to guess at. linux uses mouse clicks, keyboard timings, etc, as entropy sources, but + // PHP isn't low level to be able to use those as sources and on a web server there's not likely + // going to be a ton of keyboard or mouse action. web servers do have one thing that we can use + // however. a ton of people visiting the website. obviously you don't want to base your seeding + // soley on parameters a potential attacker sends but (1) not everything in $_SERVER is controlled + // by the user and (2) this isn't just looking at the data sent by the current user - it's based + // on the data sent by all users. one user requests the page and a hash of their info is saved. + // another user visits the page and the serialization of their data is utilized along with the + // server envirnment stuff and a hash of the previous http request data (which itself utilizes + // a hash of the session data before that). certainly an attacker should be assumed to have + // full control over his own http requests. he, however, is not going to have control over + // everyone's http requests. + static $crypto = false, $v; + if ($crypto === false) { + // save old session data + $old_session_id = session_id(); + $old_use_cookies = ini_get('session.use_cookies'); + $old_session_cache_limiter = session_cache_limiter(); + $_OLD_SESSION = isset($_SESSION) ? $_SESSION : false; + if ($old_session_id != '') { + session_write_close(); } + + session_id(1); + ini_set('session.use_cookies', 0); + session_cache_limiter(''); + session_start(); + + $v = $seed = $_SESSION['seed'] = pack('H*', sha1( + serialize($_SERVER) . + serialize($_POST) . + serialize($_GET) . + serialize($_COOKIE) . + serialize($GLOBALS) . + serialize($_SESSION) . + serialize($_OLD_SESSION) + )); + if (!isset($_SESSION['count'])) { + $_SESSION['count'] = 0; + } + $_SESSION['count']++; + + session_write_close(); + + // restore old session data + if ($old_session_id != '') { + session_id($old_session_id); + session_start(); + ini_set('session.use_cookies', $old_use_cookies); + session_cache_limiter($old_session_cache_limiter); + } else { + if ($_OLD_SESSION !== false) { + $_SESSION = $_OLD_SESSION; + unset($_OLD_SESSION); + } else { + unset($_SESSION); + } + } + + // in SSH2 a shared secret and an exchange hash are generated through the key exchange process. + // the IV client to server is the hash of that "nonce" with the letter A and for the encryption key it's the letter C. + // if the hash doesn't produce enough a key or an IV that's long enough concat successive hashes of the + // original hash and the current hash. we'll be emulating that. for more info see the following URL: + // + // http://tools.ietf.org/html/rfc4253#section-7.2 + // + // see the is_string($crypto) part for an example of how to expand the keys + $key = pack('H*', sha1($seed . 'A')); + $iv = pack('H*', sha1($seed . 'C')); + + // ciphers are used as per the nist.gov link below. also, see this link: + // + // http://en.wikipedia.org/wiki/Cryptographically_secure_pseudorandom_number_generator#Designs_based_on_cryptographic_primitives switch (true) { case class_exists('Crypt_AES'): $crypto = new Crypt_AES(CRYPT_AES_MODE_CTR); @@ -119,15 +200,47 @@ function crypt_random($min = 0, $max = 0x7FFFFFFF) $crypto = new Crypt_RC4(); break; default: - extract(unpack('Nrandom', pack('H*', sha1(mt_rand(0, 0x7FFFFFFF))))); - return abs($random) % ($max - $min) + $min; + $crypto = $seed; + return crypt_random_string($length); } + $crypto->setKey($key); $crypto->setIV($iv); $crypto->enableContinuousBuffer(); } - extract(unpack('Nrandom', $crypto->encrypt("\0\0\0\0"))); - return abs($random) % ($max - $min) + $min; + if (is_string($crypto)) { + // the following is based off of ANSI X9.31: + // + // http://csrc.nist.gov/groups/STM/cavp/documents/rng/931rngext.pdf + // + // OpenSSL uses that same standard for it's random numbers: + // + // http://www.opensource.apple.com/source/OpenSSL/OpenSSL-38/openssl/fips-1.0/rand/fips_rand.c + // (do a search for "ANS X9.31 A.2.4") + // + // ANSI X9.31 recommends ciphers be used and phpseclib does use them if they're available (see + // later on in the code) but if they're not we'll use sha1 + $result = ''; + while (strlen($result) < $length) { // each loop adds 20 bytes + // microtime() isn't packed as "densely" as it could be but then neither is that the idea. + // the idea is simply to ensure that each "block" has a unique element to it. + $i = pack('H*', sha1(microtime())); + $r = pack('H*', sha1($i ^ $v)); + $v = pack('H*', sha1($r ^ $i)); + $result.= $r; + } + return substr($result, 0, $length); + } + + //return $crypto->encrypt(str_repeat("\0", $length)); + + $result = ''; + while (strlen($result) < $length) { + $i = $crypto->encrypt(microtime()); + $r = $crypto->encrypt($i ^ $v); + $v = $crypto->encrypt($r ^ $i); + $result.= $r; + } + return substr($result, 0, $length); } -?> \ No newline at end of file diff --git a/lam/lib/3rdParty/phpseclib/Crypt/Rijndael.php b/lam/lib/3rdParty/phpseclib/Crypt/Rijndael.php index b98619e1..42531516 100644 --- a/lam/lib/3rdParty/phpseclib/Crypt/Rijndael.php +++ b/lam/lib/3rdParty/phpseclib/Crypt/Rijndael.php @@ -1,28 +1,28 @@ - * @copyright MMVIII Jim Wigginton - * @license http://www.opensource.org/licenses/mit-license.html MIT License - * @version $Id$ - * @link http://phpseclib.sourceforge.net + * @category Crypt + * @package Crypt_Rijndael + * @author Jim Wigginton + * @copyright MMVIII Jim Wigginton + * @license http://www.opensource.org/licenses/mit-license.html MIT License + * @link http://phpseclib.sourceforge.net */ +/** + * Include Crypt_Base + * + * Base cipher class + */ +if (!class_exists('Crypt_Base')) { + include_once 'Base.php'; +} + /**#@+ * @access public * @see Crypt_Rijndael::encrypt() @@ -83,31 +91,31 @@ * * @link http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation#Counter_.28CTR.29 */ -define('CRYPT_RIJNDAEL_MODE_CTR', -1); +define('CRYPT_RIJNDAEL_MODE_CTR', CRYPT_MODE_CTR); /** * Encrypt / decrypt using the Electronic Code Book mode. * * @link http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation#Electronic_codebook_.28ECB.29 */ -define('CRYPT_RIJNDAEL_MODE_ECB', 1); +define('CRYPT_RIJNDAEL_MODE_ECB', CRYPT_MODE_ECB); /** * Encrypt / decrypt using the Code Book Chaining mode. * * @link http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation#Cipher-block_chaining_.28CBC.29 */ -define('CRYPT_RIJNDAEL_MODE_CBC', 2); +define('CRYPT_RIJNDAEL_MODE_CBC', CRYPT_MODE_CBC); /** * Encrypt / decrypt using the Cipher Feedback mode. * * @link http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation#Cipher_feedback_.28CFB.29 */ -define('CRYPT_RIJNDAEL_MODE_CFB', 3); +define('CRYPT_RIJNDAEL_MODE_CFB', CRYPT_MODE_CFB); /** * Encrypt / decrypt using the Cipher Feedback mode. * * @link http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation#Output_feedback_.28OFB.29 */ -define('CRYPT_RIJNDAEL_MODE_OFB', 4); +define('CRYPT_RIJNDAEL_MODE_OFB', CRYPT_MODE_OFB); /**#@-*/ /**#@+ @@ -117,95 +125,67 @@ define('CRYPT_RIJNDAEL_MODE_OFB', 4); /** * Toggles the internal implementation */ -define('CRYPT_RIJNDAEL_MODE_INTERNAL', 1); +define('CRYPT_RIJNDAEL_MODE_INTERNAL', CRYPT_MODE_INTERNAL); /** * Toggles the mcrypt implementation */ -define('CRYPT_RIJNDAEL_MODE_MCRYPT', 2); +define('CRYPT_RIJNDAEL_MODE_MCRYPT', CRYPT_MODE_MCRYPT); /**#@-*/ /** * Pure-PHP implementation of Rijndael. * + * @package Crypt_Rijndael * @author Jim Wigginton * @version 0.1.0 * @access public - * @package Crypt_Rijndael */ -class Crypt_Rijndael { +class Crypt_Rijndael extends Crypt_Base +{ /** - * The Encryption Mode + * The default password key_size used by setPassword() * - * @see Crypt_Rijndael::Crypt_Rijndael() + * @see Crypt_Base::password_key_size + * @see Crypt_Base::setPassword() * @var Integer * @access private */ - var $mode; + var $password_key_size = 16; /** - * The Key + * The namespace used by the cipher for its constants. * - * @see Crypt_Rijndael::setKey() + * @see Crypt_Base::const_namespace * @var String * @access private */ - var $key = "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"; + var $const_namespace = 'RIJNDAEL'; /** - * The Initialization Vector + * The mcrypt specific name of the cipher * - * @see Crypt_Rijndael::setIV() + * Mcrypt is useable for 128/192/256-bit $block_size/$key_size. For 160/224 not. + * Crypt_Rijndael determines automatically whether mcrypt is useable + * or not for the current $block_size/$key_size. + * In case of, $cipher_name_mcrypt will be set dynamicaly at run time accordingly. + * + * @see Crypt_Base::cipher_name_mcrypt + * @see Crypt_Base::engine + * @see _setupEngine() * @var String * @access private */ - var $iv = ''; + var $cipher_name_mcrypt = 'rijndael-128'; /** - * A "sliding" Initialization Vector + * The default salt used by setPassword() * - * @see Crypt_Rijndael::enableContinuousBuffer() + * @see Crypt_Base::password_default_salt + * @see Crypt_Base::setPassword() * @var String * @access private */ - var $encryptIV = ''; - - /** - * A "sliding" Initialization Vector - * - * @see Crypt_Rijndael::enableContinuousBuffer() - * @var String - * @access private - */ - var $decryptIV = ''; - - /** - * Continuous Buffer status - * - * @see Crypt_Rijndael::enableContinuousBuffer() - * @var Boolean - * @access private - */ - var $continuousBuffer = false; - - /** - * Padding status - * - * @see Crypt_Rijndael::enablePadding() - * @var Boolean - * @access private - */ - var $padding = true; - - /** - * Does the key schedule need to be (re)calculated? - * - * @see setKey() - * @see setBlockLength() - * @see setKeyLength() - * @var Boolean - * @access private - */ - var $changed = true; + var $password_default_salt = 'phpseclib'; /** * Has the key length explicitly been set or should it be derived from the key, itself? @@ -234,25 +214,14 @@ class Crypt_Rijndael { */ var $dw; - /** - * The Block Length - * - * @see setBlockLength() - * @var Integer - * @access private - * @internal The max value is 32, the min value is 16. All valid values are multiples of 4. Exists in conjunction with - * $Nb because we need this value and not $Nb to pad strings appropriately. - */ - var $block_size = 16; - /** * The Block Length divided by 32 * * @see setBlockLength() * @var Integer * @access private - * @internal The max value is 256 / 32 = 8, the min value is 128 / 32 = 4. Exists in conjunction with $block_size - * because the encryption / decryption / key schedule creation requires this number and not $block_size. We could + * @internal The max value is 256 / 32 = 8, the min value is 128 / 32 = 4. Exists in conjunction with $block_size + * because the encryption / decryption / key schedule creation requires this number and not $block_size. We could * derive this from $block_size or vice versa, but that'd mean we'd have to do multiple shift operations, so in lieu * of that, we'll just precompute it once. * @@ -265,8 +234,8 @@ class Crypt_Rijndael { * @see setKeyLength() * @var Integer * @access private - * @internal The max value is 256 / 8 = 32, the min value is 128 / 8 = 16. Exists in conjunction with $key_size - * because the encryption / decryption / key schedule creation requires this number and not $key_size. We could + * @internal The max value is 256 / 8 = 32, the min value is 128 / 8 = 16. Exists in conjunction with $Nk + * because the encryption / decryption / key schedule creation requires this number and not $key_size. We could * derive this from $key_size or vice versa, but that'd mean we'd have to do multiple shift operations, so in lieu * of that, we'll just precompute it once. */ @@ -300,224 +269,439 @@ class Crypt_Rijndael { var $c; /** - * Precomputed mixColumns table + * Holds the last used key- and block_size information * - * @see Crypt_Rijndael() * @var Array * @access private */ - var $t0; + var $kl; /** * Precomputed mixColumns table * - * @see Crypt_Rijndael() + * According to (section 5.2.1), + * precomputed tables can be used in the mixColumns phase. in that example, they're assigned t0...t3, so + * those are the names we'll use. + * + * @see Crypt_Rijndael:_encryptBlock() + * @see Crypt_Rijndael:_decryptBlock() * @var Array * @access private */ - var $t1; + var $t0 = array( + 0xC66363A5, 0xF87C7C84, 0xEE777799, 0xF67B7B8D, 0xFFF2F20D, 0xD66B6BBD, 0xDE6F6FB1, 0x91C5C554, + 0x60303050, 0x02010103, 0xCE6767A9, 0x562B2B7D, 0xE7FEFE19, 0xB5D7D762, 0x4DABABE6, 0xEC76769A, + 0x8FCACA45, 0x1F82829D, 0x89C9C940, 0xFA7D7D87, 0xEFFAFA15, 0xB25959EB, 0x8E4747C9, 0xFBF0F00B, + 0x41ADADEC, 0xB3D4D467, 0x5FA2A2FD, 0x45AFAFEA, 0x239C9CBF, 0x53A4A4F7, 0xE4727296, 0x9BC0C05B, + 0x75B7B7C2, 0xE1FDFD1C, 0x3D9393AE, 0x4C26266A, 0x6C36365A, 0x7E3F3F41, 0xF5F7F702, 0x83CCCC4F, + 0x6834345C, 0x51A5A5F4, 0xD1E5E534, 0xF9F1F108, 0xE2717193, 0xABD8D873, 0x62313153, 0x2A15153F, + 0x0804040C, 0x95C7C752, 0x46232365, 0x9DC3C35E, 0x30181828, 0x379696A1, 0x0A05050F, 0x2F9A9AB5, + 0x0E070709, 0x24121236, 0x1B80809B, 0xDFE2E23D, 0xCDEBEB26, 0x4E272769, 0x7FB2B2CD, 0xEA75759F, + 0x1209091B, 0x1D83839E, 0x582C2C74, 0x341A1A2E, 0x361B1B2D, 0xDC6E6EB2, 0xB45A5AEE, 0x5BA0A0FB, + 0xA45252F6, 0x763B3B4D, 0xB7D6D661, 0x7DB3B3CE, 0x5229297B, 0xDDE3E33E, 0x5E2F2F71, 0x13848497, + 0xA65353F5, 0xB9D1D168, 0x00000000, 0xC1EDED2C, 0x40202060, 0xE3FCFC1F, 0x79B1B1C8, 0xB65B5BED, + 0xD46A6ABE, 0x8DCBCB46, 0x67BEBED9, 0x7239394B, 0x944A4ADE, 0x984C4CD4, 0xB05858E8, 0x85CFCF4A, + 0xBBD0D06B, 0xC5EFEF2A, 0x4FAAAAE5, 0xEDFBFB16, 0x864343C5, 0x9A4D4DD7, 0x66333355, 0x11858594, + 0x8A4545CF, 0xE9F9F910, 0x04020206, 0xFE7F7F81, 0xA05050F0, 0x783C3C44, 0x259F9FBA, 0x4BA8A8E3, + 0xA25151F3, 0x5DA3A3FE, 0x804040C0, 0x058F8F8A, 0x3F9292AD, 0x219D9DBC, 0x70383848, 0xF1F5F504, + 0x63BCBCDF, 0x77B6B6C1, 0xAFDADA75, 0x42212163, 0x20101030, 0xE5FFFF1A, 0xFDF3F30E, 0xBFD2D26D, + 0x81CDCD4C, 0x180C0C14, 0x26131335, 0xC3ECEC2F, 0xBE5F5FE1, 0x359797A2, 0x884444CC, 0x2E171739, + 0x93C4C457, 0x55A7A7F2, 0xFC7E7E82, 0x7A3D3D47, 0xC86464AC, 0xBA5D5DE7, 0x3219192B, 0xE6737395, + 0xC06060A0, 0x19818198, 0x9E4F4FD1, 0xA3DCDC7F, 0x44222266, 0x542A2A7E, 0x3B9090AB, 0x0B888883, + 0x8C4646CA, 0xC7EEEE29, 0x6BB8B8D3, 0x2814143C, 0xA7DEDE79, 0xBC5E5EE2, 0x160B0B1D, 0xADDBDB76, + 0xDBE0E03B, 0x64323256, 0x743A3A4E, 0x140A0A1E, 0x924949DB, 0x0C06060A, 0x4824246C, 0xB85C5CE4, + 0x9FC2C25D, 0xBDD3D36E, 0x43ACACEF, 0xC46262A6, 0x399191A8, 0x319595A4, 0xD3E4E437, 0xF279798B, + 0xD5E7E732, 0x8BC8C843, 0x6E373759, 0xDA6D6DB7, 0x018D8D8C, 0xB1D5D564, 0x9C4E4ED2, 0x49A9A9E0, + 0xD86C6CB4, 0xAC5656FA, 0xF3F4F407, 0xCFEAEA25, 0xCA6565AF, 0xF47A7A8E, 0x47AEAEE9, 0x10080818, + 0x6FBABAD5, 0xF0787888, 0x4A25256F, 0x5C2E2E72, 0x381C1C24, 0x57A6A6F1, 0x73B4B4C7, 0x97C6C651, + 0xCBE8E823, 0xA1DDDD7C, 0xE874749C, 0x3E1F1F21, 0x964B4BDD, 0x61BDBDDC, 0x0D8B8B86, 0x0F8A8A85, + 0xE0707090, 0x7C3E3E42, 0x71B5B5C4, 0xCC6666AA, 0x904848D8, 0x06030305, 0xF7F6F601, 0x1C0E0E12, + 0xC26161A3, 0x6A35355F, 0xAE5757F9, 0x69B9B9D0, 0x17868691, 0x99C1C158, 0x3A1D1D27, 0x279E9EB9, + 0xD9E1E138, 0xEBF8F813, 0x2B9898B3, 0x22111133, 0xD26969BB, 0xA9D9D970, 0x078E8E89, 0x339494A7, + 0x2D9B9BB6, 0x3C1E1E22, 0x15878792, 0xC9E9E920, 0x87CECE49, 0xAA5555FF, 0x50282878, 0xA5DFDF7A, + 0x038C8C8F, 0x59A1A1F8, 0x09898980, 0x1A0D0D17, 0x65BFBFDA, 0xD7E6E631, 0x844242C6, 0xD06868B8, + 0x824141C3, 0x299999B0, 0x5A2D2D77, 0x1E0F0F11, 0x7BB0B0CB, 0xA85454FC, 0x6DBBBBD6, 0x2C16163A + ); /** * Precomputed mixColumns table * - * @see Crypt_Rijndael() + * @see Crypt_Rijndael:_encryptBlock() + * @see Crypt_Rijndael:_decryptBlock() * @var Array * @access private */ - var $t2; + var $t1 = array( + 0xA5C66363, 0x84F87C7C, 0x99EE7777, 0x8DF67B7B, 0x0DFFF2F2, 0xBDD66B6B, 0xB1DE6F6F, 0x5491C5C5, + 0x50603030, 0x03020101, 0xA9CE6767, 0x7D562B2B, 0x19E7FEFE, 0x62B5D7D7, 0xE64DABAB, 0x9AEC7676, + 0x458FCACA, 0x9D1F8282, 0x4089C9C9, 0x87FA7D7D, 0x15EFFAFA, 0xEBB25959, 0xC98E4747, 0x0BFBF0F0, + 0xEC41ADAD, 0x67B3D4D4, 0xFD5FA2A2, 0xEA45AFAF, 0xBF239C9C, 0xF753A4A4, 0x96E47272, 0x5B9BC0C0, + 0xC275B7B7, 0x1CE1FDFD, 0xAE3D9393, 0x6A4C2626, 0x5A6C3636, 0x417E3F3F, 0x02F5F7F7, 0x4F83CCCC, + 0x5C683434, 0xF451A5A5, 0x34D1E5E5, 0x08F9F1F1, 0x93E27171, 0x73ABD8D8, 0x53623131, 0x3F2A1515, + 0x0C080404, 0x5295C7C7, 0x65462323, 0x5E9DC3C3, 0x28301818, 0xA1379696, 0x0F0A0505, 0xB52F9A9A, + 0x090E0707, 0x36241212, 0x9B1B8080, 0x3DDFE2E2, 0x26CDEBEB, 0x694E2727, 0xCD7FB2B2, 0x9FEA7575, + 0x1B120909, 0x9E1D8383, 0x74582C2C, 0x2E341A1A, 0x2D361B1B, 0xB2DC6E6E, 0xEEB45A5A, 0xFB5BA0A0, + 0xF6A45252, 0x4D763B3B, 0x61B7D6D6, 0xCE7DB3B3, 0x7B522929, 0x3EDDE3E3, 0x715E2F2F, 0x97138484, + 0xF5A65353, 0x68B9D1D1, 0x00000000, 0x2CC1EDED, 0x60402020, 0x1FE3FCFC, 0xC879B1B1, 0xEDB65B5B, + 0xBED46A6A, 0x468DCBCB, 0xD967BEBE, 0x4B723939, 0xDE944A4A, 0xD4984C4C, 0xE8B05858, 0x4A85CFCF, + 0x6BBBD0D0, 0x2AC5EFEF, 0xE54FAAAA, 0x16EDFBFB, 0xC5864343, 0xD79A4D4D, 0x55663333, 0x94118585, + 0xCF8A4545, 0x10E9F9F9, 0x06040202, 0x81FE7F7F, 0xF0A05050, 0x44783C3C, 0xBA259F9F, 0xE34BA8A8, + 0xF3A25151, 0xFE5DA3A3, 0xC0804040, 0x8A058F8F, 0xAD3F9292, 0xBC219D9D, 0x48703838, 0x04F1F5F5, + 0xDF63BCBC, 0xC177B6B6, 0x75AFDADA, 0x63422121, 0x30201010, 0x1AE5FFFF, 0x0EFDF3F3, 0x6DBFD2D2, + 0x4C81CDCD, 0x14180C0C, 0x35261313, 0x2FC3ECEC, 0xE1BE5F5F, 0xA2359797, 0xCC884444, 0x392E1717, + 0x5793C4C4, 0xF255A7A7, 0x82FC7E7E, 0x477A3D3D, 0xACC86464, 0xE7BA5D5D, 0x2B321919, 0x95E67373, + 0xA0C06060, 0x98198181, 0xD19E4F4F, 0x7FA3DCDC, 0x66442222, 0x7E542A2A, 0xAB3B9090, 0x830B8888, + 0xCA8C4646, 0x29C7EEEE, 0xD36BB8B8, 0x3C281414, 0x79A7DEDE, 0xE2BC5E5E, 0x1D160B0B, 0x76ADDBDB, + 0x3BDBE0E0, 0x56643232, 0x4E743A3A, 0x1E140A0A, 0xDB924949, 0x0A0C0606, 0x6C482424, 0xE4B85C5C, + 0x5D9FC2C2, 0x6EBDD3D3, 0xEF43ACAC, 0xA6C46262, 0xA8399191, 0xA4319595, 0x37D3E4E4, 0x8BF27979, + 0x32D5E7E7, 0x438BC8C8, 0x596E3737, 0xB7DA6D6D, 0x8C018D8D, 0x64B1D5D5, 0xD29C4E4E, 0xE049A9A9, + 0xB4D86C6C, 0xFAAC5656, 0x07F3F4F4, 0x25CFEAEA, 0xAFCA6565, 0x8EF47A7A, 0xE947AEAE, 0x18100808, + 0xD56FBABA, 0x88F07878, 0x6F4A2525, 0x725C2E2E, 0x24381C1C, 0xF157A6A6, 0xC773B4B4, 0x5197C6C6, + 0x23CBE8E8, 0x7CA1DDDD, 0x9CE87474, 0x213E1F1F, 0xDD964B4B, 0xDC61BDBD, 0x860D8B8B, 0x850F8A8A, + 0x90E07070, 0x427C3E3E, 0xC471B5B5, 0xAACC6666, 0xD8904848, 0x05060303, 0x01F7F6F6, 0x121C0E0E, + 0xA3C26161, 0x5F6A3535, 0xF9AE5757, 0xD069B9B9, 0x91178686, 0x5899C1C1, 0x273A1D1D, 0xB9279E9E, + 0x38D9E1E1, 0x13EBF8F8, 0xB32B9898, 0x33221111, 0xBBD26969, 0x70A9D9D9, 0x89078E8E, 0xA7339494, + 0xB62D9B9B, 0x223C1E1E, 0x92158787, 0x20C9E9E9, 0x4987CECE, 0xFFAA5555, 0x78502828, 0x7AA5DFDF, + 0x8F038C8C, 0xF859A1A1, 0x80098989, 0x171A0D0D, 0xDA65BFBF, 0x31D7E6E6, 0xC6844242, 0xB8D06868, + 0xC3824141, 0xB0299999, 0x775A2D2D, 0x111E0F0F, 0xCB7BB0B0, 0xFCA85454, 0xD66DBBBB, 0x3A2C1616 + ); /** * Precomputed mixColumns table * - * @see Crypt_Rijndael() + * @see Crypt_Rijndael:_encryptBlock() + * @see Crypt_Rijndael:_decryptBlock() * @var Array * @access private */ - var $t3; + var $t2 = array( + 0x63A5C663, 0x7C84F87C, 0x7799EE77, 0x7B8DF67B, 0xF20DFFF2, 0x6BBDD66B, 0x6FB1DE6F, 0xC55491C5, + 0x30506030, 0x01030201, 0x67A9CE67, 0x2B7D562B, 0xFE19E7FE, 0xD762B5D7, 0xABE64DAB, 0x769AEC76, + 0xCA458FCA, 0x829D1F82, 0xC94089C9, 0x7D87FA7D, 0xFA15EFFA, 0x59EBB259, 0x47C98E47, 0xF00BFBF0, + 0xADEC41AD, 0xD467B3D4, 0xA2FD5FA2, 0xAFEA45AF, 0x9CBF239C, 0xA4F753A4, 0x7296E472, 0xC05B9BC0, + 0xB7C275B7, 0xFD1CE1FD, 0x93AE3D93, 0x266A4C26, 0x365A6C36, 0x3F417E3F, 0xF702F5F7, 0xCC4F83CC, + 0x345C6834, 0xA5F451A5, 0xE534D1E5, 0xF108F9F1, 0x7193E271, 0xD873ABD8, 0x31536231, 0x153F2A15, + 0x040C0804, 0xC75295C7, 0x23654623, 0xC35E9DC3, 0x18283018, 0x96A13796, 0x050F0A05, 0x9AB52F9A, + 0x07090E07, 0x12362412, 0x809B1B80, 0xE23DDFE2, 0xEB26CDEB, 0x27694E27, 0xB2CD7FB2, 0x759FEA75, + 0x091B1209, 0x839E1D83, 0x2C74582C, 0x1A2E341A, 0x1B2D361B, 0x6EB2DC6E, 0x5AEEB45A, 0xA0FB5BA0, + 0x52F6A452, 0x3B4D763B, 0xD661B7D6, 0xB3CE7DB3, 0x297B5229, 0xE33EDDE3, 0x2F715E2F, 0x84971384, + 0x53F5A653, 0xD168B9D1, 0x00000000, 0xED2CC1ED, 0x20604020, 0xFC1FE3FC, 0xB1C879B1, 0x5BEDB65B, + 0x6ABED46A, 0xCB468DCB, 0xBED967BE, 0x394B7239, 0x4ADE944A, 0x4CD4984C, 0x58E8B058, 0xCF4A85CF, + 0xD06BBBD0, 0xEF2AC5EF, 0xAAE54FAA, 0xFB16EDFB, 0x43C58643, 0x4DD79A4D, 0x33556633, 0x85941185, + 0x45CF8A45, 0xF910E9F9, 0x02060402, 0x7F81FE7F, 0x50F0A050, 0x3C44783C, 0x9FBA259F, 0xA8E34BA8, + 0x51F3A251, 0xA3FE5DA3, 0x40C08040, 0x8F8A058F, 0x92AD3F92, 0x9DBC219D, 0x38487038, 0xF504F1F5, + 0xBCDF63BC, 0xB6C177B6, 0xDA75AFDA, 0x21634221, 0x10302010, 0xFF1AE5FF, 0xF30EFDF3, 0xD26DBFD2, + 0xCD4C81CD, 0x0C14180C, 0x13352613, 0xEC2FC3EC, 0x5FE1BE5F, 0x97A23597, 0x44CC8844, 0x17392E17, + 0xC45793C4, 0xA7F255A7, 0x7E82FC7E, 0x3D477A3D, 0x64ACC864, 0x5DE7BA5D, 0x192B3219, 0x7395E673, + 0x60A0C060, 0x81981981, 0x4FD19E4F, 0xDC7FA3DC, 0x22664422, 0x2A7E542A, 0x90AB3B90, 0x88830B88, + 0x46CA8C46, 0xEE29C7EE, 0xB8D36BB8, 0x143C2814, 0xDE79A7DE, 0x5EE2BC5E, 0x0B1D160B, 0xDB76ADDB, + 0xE03BDBE0, 0x32566432, 0x3A4E743A, 0x0A1E140A, 0x49DB9249, 0x060A0C06, 0x246C4824, 0x5CE4B85C, + 0xC25D9FC2, 0xD36EBDD3, 0xACEF43AC, 0x62A6C462, 0x91A83991, 0x95A43195, 0xE437D3E4, 0x798BF279, + 0xE732D5E7, 0xC8438BC8, 0x37596E37, 0x6DB7DA6D, 0x8D8C018D, 0xD564B1D5, 0x4ED29C4E, 0xA9E049A9, + 0x6CB4D86C, 0x56FAAC56, 0xF407F3F4, 0xEA25CFEA, 0x65AFCA65, 0x7A8EF47A, 0xAEE947AE, 0x08181008, + 0xBAD56FBA, 0x7888F078, 0x256F4A25, 0x2E725C2E, 0x1C24381C, 0xA6F157A6, 0xB4C773B4, 0xC65197C6, + 0xE823CBE8, 0xDD7CA1DD, 0x749CE874, 0x1F213E1F, 0x4BDD964B, 0xBDDC61BD, 0x8B860D8B, 0x8A850F8A, + 0x7090E070, 0x3E427C3E, 0xB5C471B5, 0x66AACC66, 0x48D89048, 0x03050603, 0xF601F7F6, 0x0E121C0E, + 0x61A3C261, 0x355F6A35, 0x57F9AE57, 0xB9D069B9, 0x86911786, 0xC15899C1, 0x1D273A1D, 0x9EB9279E, + 0xE138D9E1, 0xF813EBF8, 0x98B32B98, 0x11332211, 0x69BBD269, 0xD970A9D9, 0x8E89078E, 0x94A73394, + 0x9BB62D9B, 0x1E223C1E, 0x87921587, 0xE920C9E9, 0xCE4987CE, 0x55FFAA55, 0x28785028, 0xDF7AA5DF, + 0x8C8F038C, 0xA1F859A1, 0x89800989, 0x0D171A0D, 0xBFDA65BF, 0xE631D7E6, 0x42C68442, 0x68B8D068, + 0x41C38241, 0x99B02999, 0x2D775A2D, 0x0F111E0F, 0xB0CB7BB0, 0x54FCA854, 0xBBD66DBB, 0x163A2C16 + ); + + /** + * Precomputed mixColumns table + * + * @see Crypt_Rijndael:_encryptBlock() + * @see Crypt_Rijndael:_decryptBlock() + * @var Array + * @access private + */ + var $t3 = array( + 0x6363A5C6, 0x7C7C84F8, 0x777799EE, 0x7B7B8DF6, 0xF2F20DFF, 0x6B6BBDD6, 0x6F6FB1DE, 0xC5C55491, + 0x30305060, 0x01010302, 0x6767A9CE, 0x2B2B7D56, 0xFEFE19E7, 0xD7D762B5, 0xABABE64D, 0x76769AEC, + 0xCACA458F, 0x82829D1F, 0xC9C94089, 0x7D7D87FA, 0xFAFA15EF, 0x5959EBB2, 0x4747C98E, 0xF0F00BFB, + 0xADADEC41, 0xD4D467B3, 0xA2A2FD5F, 0xAFAFEA45, 0x9C9CBF23, 0xA4A4F753, 0x727296E4, 0xC0C05B9B, + 0xB7B7C275, 0xFDFD1CE1, 0x9393AE3D, 0x26266A4C, 0x36365A6C, 0x3F3F417E, 0xF7F702F5, 0xCCCC4F83, + 0x34345C68, 0xA5A5F451, 0xE5E534D1, 0xF1F108F9, 0x717193E2, 0xD8D873AB, 0x31315362, 0x15153F2A, + 0x04040C08, 0xC7C75295, 0x23236546, 0xC3C35E9D, 0x18182830, 0x9696A137, 0x05050F0A, 0x9A9AB52F, + 0x0707090E, 0x12123624, 0x80809B1B, 0xE2E23DDF, 0xEBEB26CD, 0x2727694E, 0xB2B2CD7F, 0x75759FEA, + 0x09091B12, 0x83839E1D, 0x2C2C7458, 0x1A1A2E34, 0x1B1B2D36, 0x6E6EB2DC, 0x5A5AEEB4, 0xA0A0FB5B, + 0x5252F6A4, 0x3B3B4D76, 0xD6D661B7, 0xB3B3CE7D, 0x29297B52, 0xE3E33EDD, 0x2F2F715E, 0x84849713, + 0x5353F5A6, 0xD1D168B9, 0x00000000, 0xEDED2CC1, 0x20206040, 0xFCFC1FE3, 0xB1B1C879, 0x5B5BEDB6, + 0x6A6ABED4, 0xCBCB468D, 0xBEBED967, 0x39394B72, 0x4A4ADE94, 0x4C4CD498, 0x5858E8B0, 0xCFCF4A85, + 0xD0D06BBB, 0xEFEF2AC5, 0xAAAAE54F, 0xFBFB16ED, 0x4343C586, 0x4D4DD79A, 0x33335566, 0x85859411, + 0x4545CF8A, 0xF9F910E9, 0x02020604, 0x7F7F81FE, 0x5050F0A0, 0x3C3C4478, 0x9F9FBA25, 0xA8A8E34B, + 0x5151F3A2, 0xA3A3FE5D, 0x4040C080, 0x8F8F8A05, 0x9292AD3F, 0x9D9DBC21, 0x38384870, 0xF5F504F1, + 0xBCBCDF63, 0xB6B6C177, 0xDADA75AF, 0x21216342, 0x10103020, 0xFFFF1AE5, 0xF3F30EFD, 0xD2D26DBF, + 0xCDCD4C81, 0x0C0C1418, 0x13133526, 0xECEC2FC3, 0x5F5FE1BE, 0x9797A235, 0x4444CC88, 0x1717392E, + 0xC4C45793, 0xA7A7F255, 0x7E7E82FC, 0x3D3D477A, 0x6464ACC8, 0x5D5DE7BA, 0x19192B32, 0x737395E6, + 0x6060A0C0, 0x81819819, 0x4F4FD19E, 0xDCDC7FA3, 0x22226644, 0x2A2A7E54, 0x9090AB3B, 0x8888830B, + 0x4646CA8C, 0xEEEE29C7, 0xB8B8D36B, 0x14143C28, 0xDEDE79A7, 0x5E5EE2BC, 0x0B0B1D16, 0xDBDB76AD, + 0xE0E03BDB, 0x32325664, 0x3A3A4E74, 0x0A0A1E14, 0x4949DB92, 0x06060A0C, 0x24246C48, 0x5C5CE4B8, + 0xC2C25D9F, 0xD3D36EBD, 0xACACEF43, 0x6262A6C4, 0x9191A839, 0x9595A431, 0xE4E437D3, 0x79798BF2, + 0xE7E732D5, 0xC8C8438B, 0x3737596E, 0x6D6DB7DA, 0x8D8D8C01, 0xD5D564B1, 0x4E4ED29C, 0xA9A9E049, + 0x6C6CB4D8, 0x5656FAAC, 0xF4F407F3, 0xEAEA25CF, 0x6565AFCA, 0x7A7A8EF4, 0xAEAEE947, 0x08081810, + 0xBABAD56F, 0x787888F0, 0x25256F4A, 0x2E2E725C, 0x1C1C2438, 0xA6A6F157, 0xB4B4C773, 0xC6C65197, + 0xE8E823CB, 0xDDDD7CA1, 0x74749CE8, 0x1F1F213E, 0x4B4BDD96, 0xBDBDDC61, 0x8B8B860D, 0x8A8A850F, + 0x707090E0, 0x3E3E427C, 0xB5B5C471, 0x6666AACC, 0x4848D890, 0x03030506, 0xF6F601F7, 0x0E0E121C, + 0x6161A3C2, 0x35355F6A, 0x5757F9AE, 0xB9B9D069, 0x86869117, 0xC1C15899, 0x1D1D273A, 0x9E9EB927, + 0xE1E138D9, 0xF8F813EB, 0x9898B32B, 0x11113322, 0x6969BBD2, 0xD9D970A9, 0x8E8E8907, 0x9494A733, + 0x9B9BB62D, 0x1E1E223C, 0x87879215, 0xE9E920C9, 0xCECE4987, 0x5555FFAA, 0x28287850, 0xDFDF7AA5, + 0x8C8C8F03, 0xA1A1F859, 0x89898009, 0x0D0D171A, 0xBFBFDA65, 0xE6E631D7, 0x4242C684, 0x6868B8D0, + 0x4141C382, 0x9999B029, 0x2D2D775A, 0x0F0F111E, 0xB0B0CB7B, 0x5454FCA8, 0xBBBBD66D, 0x16163A2C + ); /** * Precomputed invMixColumns table * - * @see Crypt_Rijndael() + * @see Crypt_Rijndael:_encryptBlock() + * @see Crypt_Rijndael:_decryptBlock() * @var Array * @access private */ - var $dt0; + var $dt0 = array( + 0x51F4A750, 0x7E416553, 0x1A17A4C3, 0x3A275E96, 0x3BAB6BCB, 0x1F9D45F1, 0xACFA58AB, 0x4BE30393, + 0x2030FA55, 0xAD766DF6, 0x88CC7691, 0xF5024C25, 0x4FE5D7FC, 0xC52ACBD7, 0x26354480, 0xB562A38F, + 0xDEB15A49, 0x25BA1B67, 0x45EA0E98, 0x5DFEC0E1, 0xC32F7502, 0x814CF012, 0x8D4697A3, 0x6BD3F9C6, + 0x038F5FE7, 0x15929C95, 0xBF6D7AEB, 0x955259DA, 0xD4BE832D, 0x587421D3, 0x49E06929, 0x8EC9C844, + 0x75C2896A, 0xF48E7978, 0x99583E6B, 0x27B971DD, 0xBEE14FB6, 0xF088AD17, 0xC920AC66, 0x7DCE3AB4, + 0x63DF4A18, 0xE51A3182, 0x97513360, 0x62537F45, 0xB16477E0, 0xBB6BAE84, 0xFE81A01C, 0xF9082B94, + 0x70486858, 0x8F45FD19, 0x94DE6C87, 0x527BF8B7, 0xAB73D323, 0x724B02E2, 0xE31F8F57, 0x6655AB2A, + 0xB2EB2807, 0x2FB5C203, 0x86C57B9A, 0xD33708A5, 0x302887F2, 0x23BFA5B2, 0x02036ABA, 0xED16825C, + 0x8ACF1C2B, 0xA779B492, 0xF307F2F0, 0x4E69E2A1, 0x65DAF4CD, 0x0605BED5, 0xD134621F, 0xC4A6FE8A, + 0x342E539D, 0xA2F355A0, 0x058AE132, 0xA4F6EB75, 0x0B83EC39, 0x4060EFAA, 0x5E719F06, 0xBD6E1051, + 0x3E218AF9, 0x96DD063D, 0xDD3E05AE, 0x4DE6BD46, 0x91548DB5, 0x71C45D05, 0x0406D46F, 0x605015FF, + 0x1998FB24, 0xD6BDE997, 0x894043CC, 0x67D99E77, 0xB0E842BD, 0x07898B88, 0xE7195B38, 0x79C8EEDB, + 0xA17C0A47, 0x7C420FE9, 0xF8841EC9, 0x00000000, 0x09808683, 0x322BED48, 0x1E1170AC, 0x6C5A724E, + 0xFD0EFFFB, 0x0F853856, 0x3DAED51E, 0x362D3927, 0x0A0FD964, 0x685CA621, 0x9B5B54D1, 0x24362E3A, + 0x0C0A67B1, 0x9357E70F, 0xB4EE96D2, 0x1B9B919E, 0x80C0C54F, 0x61DC20A2, 0x5A774B69, 0x1C121A16, + 0xE293BA0A, 0xC0A02AE5, 0x3C22E043, 0x121B171D, 0x0E090D0B, 0xF28BC7AD, 0x2DB6A8B9, 0x141EA9C8, + 0x57F11985, 0xAF75074C, 0xEE99DDBB, 0xA37F60FD, 0xF701269F, 0x5C72F5BC, 0x44663BC5, 0x5BFB7E34, + 0x8B432976, 0xCB23C6DC, 0xB6EDFC68, 0xB8E4F163, 0xD731DCCA, 0x42638510, 0x13972240, 0x84C61120, + 0x854A247D, 0xD2BB3DF8, 0xAEF93211, 0xC729A16D, 0x1D9E2F4B, 0xDCB230F3, 0x0D8652EC, 0x77C1E3D0, + 0x2BB3166C, 0xA970B999, 0x119448FA, 0x47E96422, 0xA8FC8CC4, 0xA0F03F1A, 0x567D2CD8, 0x223390EF, + 0x87494EC7, 0xD938D1C1, 0x8CCAA2FE, 0x98D40B36, 0xA6F581CF, 0xA57ADE28, 0xDAB78E26, 0x3FADBFA4, + 0x2C3A9DE4, 0x5078920D, 0x6A5FCC9B, 0x547E4662, 0xF68D13C2, 0x90D8B8E8, 0x2E39F75E, 0x82C3AFF5, + 0x9F5D80BE, 0x69D0937C, 0x6FD52DA9, 0xCF2512B3, 0xC8AC993B, 0x10187DA7, 0xE89C636E, 0xDB3BBB7B, + 0xCD267809, 0x6E5918F4, 0xEC9AB701, 0x834F9AA8, 0xE6956E65, 0xAAFFE67E, 0x21BCCF08, 0xEF15E8E6, + 0xBAE79BD9, 0x4A6F36CE, 0xEA9F09D4, 0x29B07CD6, 0x31A4B2AF, 0x2A3F2331, 0xC6A59430, 0x35A266C0, + 0x744EBC37, 0xFC82CAA6, 0xE090D0B0, 0x33A7D815, 0xF104984A, 0x41ECDAF7, 0x7FCD500E, 0x1791F62F, + 0x764DD68D, 0x43EFB04D, 0xCCAA4D54, 0xE49604DF, 0x9ED1B5E3, 0x4C6A881B, 0xC12C1FB8, 0x4665517F, + 0x9D5EEA04, 0x018C355D, 0xFA877473, 0xFB0B412E, 0xB3671D5A, 0x92DBD252, 0xE9105633, 0x6DD64713, + 0x9AD7618C, 0x37A10C7A, 0x59F8148E, 0xEB133C89, 0xCEA927EE, 0xB761C935, 0xE11CE5ED, 0x7A47B13C, + 0x9CD2DF59, 0x55F2733F, 0x1814CE79, 0x73C737BF, 0x53F7CDEA, 0x5FFDAA5B, 0xDF3D6F14, 0x7844DB86, + 0xCAAFF381, 0xB968C43E, 0x3824342C, 0xC2A3405F, 0x161DC372, 0xBCE2250C, 0x283C498B, 0xFF0D9541, + 0x39A80171, 0x080CB3DE, 0xD8B4E49C, 0x6456C190, 0x7BCB8461, 0xD532B670, 0x486C5C74, 0xD0B85742 + ); /** * Precomputed invMixColumns table * - * @see Crypt_Rijndael() + * @see Crypt_Rijndael:_encryptBlock() + * @see Crypt_Rijndael:_decryptBlock() * @var Array * @access private */ - var $dt1; + var $dt1 = array( + 0x5051F4A7, 0x537E4165, 0xC31A17A4, 0x963A275E, 0xCB3BAB6B, 0xF11F9D45, 0xABACFA58, 0x934BE303, + 0x552030FA, 0xF6AD766D, 0x9188CC76, 0x25F5024C, 0xFC4FE5D7, 0xD7C52ACB, 0x80263544, 0x8FB562A3, + 0x49DEB15A, 0x6725BA1B, 0x9845EA0E, 0xE15DFEC0, 0x02C32F75, 0x12814CF0, 0xA38D4697, 0xC66BD3F9, + 0xE7038F5F, 0x9515929C, 0xEBBF6D7A, 0xDA955259, 0x2DD4BE83, 0xD3587421, 0x2949E069, 0x448EC9C8, + 0x6A75C289, 0x78F48E79, 0x6B99583E, 0xDD27B971, 0xB6BEE14F, 0x17F088AD, 0x66C920AC, 0xB47DCE3A, + 0x1863DF4A, 0x82E51A31, 0x60975133, 0x4562537F, 0xE0B16477, 0x84BB6BAE, 0x1CFE81A0, 0x94F9082B, + 0x58704868, 0x198F45FD, 0x8794DE6C, 0xB7527BF8, 0x23AB73D3, 0xE2724B02, 0x57E31F8F, 0x2A6655AB, + 0x07B2EB28, 0x032FB5C2, 0x9A86C57B, 0xA5D33708, 0xF2302887, 0xB223BFA5, 0xBA02036A, 0x5CED1682, + 0x2B8ACF1C, 0x92A779B4, 0xF0F307F2, 0xA14E69E2, 0xCD65DAF4, 0xD50605BE, 0x1FD13462, 0x8AC4A6FE, + 0x9D342E53, 0xA0A2F355, 0x32058AE1, 0x75A4F6EB, 0x390B83EC, 0xAA4060EF, 0x065E719F, 0x51BD6E10, + 0xF93E218A, 0x3D96DD06, 0xAEDD3E05, 0x464DE6BD, 0xB591548D, 0x0571C45D, 0x6F0406D4, 0xFF605015, + 0x241998FB, 0x97D6BDE9, 0xCC894043, 0x7767D99E, 0xBDB0E842, 0x8807898B, 0x38E7195B, 0xDB79C8EE, + 0x47A17C0A, 0xE97C420F, 0xC9F8841E, 0x00000000, 0x83098086, 0x48322BED, 0xAC1E1170, 0x4E6C5A72, + 0xFBFD0EFF, 0x560F8538, 0x1E3DAED5, 0x27362D39, 0x640A0FD9, 0x21685CA6, 0xD19B5B54, 0x3A24362E, + 0xB10C0A67, 0x0F9357E7, 0xD2B4EE96, 0x9E1B9B91, 0x4F80C0C5, 0xA261DC20, 0x695A774B, 0x161C121A, + 0x0AE293BA, 0xE5C0A02A, 0x433C22E0, 0x1D121B17, 0x0B0E090D, 0xADF28BC7, 0xB92DB6A8, 0xC8141EA9, + 0x8557F119, 0x4CAF7507, 0xBBEE99DD, 0xFDA37F60, 0x9FF70126, 0xBC5C72F5, 0xC544663B, 0x345BFB7E, + 0x768B4329, 0xDCCB23C6, 0x68B6EDFC, 0x63B8E4F1, 0xCAD731DC, 0x10426385, 0x40139722, 0x2084C611, + 0x7D854A24, 0xF8D2BB3D, 0x11AEF932, 0x6DC729A1, 0x4B1D9E2F, 0xF3DCB230, 0xEC0D8652, 0xD077C1E3, + 0x6C2BB316, 0x99A970B9, 0xFA119448, 0x2247E964, 0xC4A8FC8C, 0x1AA0F03F, 0xD8567D2C, 0xEF223390, + 0xC787494E, 0xC1D938D1, 0xFE8CCAA2, 0x3698D40B, 0xCFA6F581, 0x28A57ADE, 0x26DAB78E, 0xA43FADBF, + 0xE42C3A9D, 0x0D507892, 0x9B6A5FCC, 0x62547E46, 0xC2F68D13, 0xE890D8B8, 0x5E2E39F7, 0xF582C3AF, + 0xBE9F5D80, 0x7C69D093, 0xA96FD52D, 0xB3CF2512, 0x3BC8AC99, 0xA710187D, 0x6EE89C63, 0x7BDB3BBB, + 0x09CD2678, 0xF46E5918, 0x01EC9AB7, 0xA8834F9A, 0x65E6956E, 0x7EAAFFE6, 0x0821BCCF, 0xE6EF15E8, + 0xD9BAE79B, 0xCE4A6F36, 0xD4EA9F09, 0xD629B07C, 0xAF31A4B2, 0x312A3F23, 0x30C6A594, 0xC035A266, + 0x37744EBC, 0xA6FC82CA, 0xB0E090D0, 0x1533A7D8, 0x4AF10498, 0xF741ECDA, 0x0E7FCD50, 0x2F1791F6, + 0x8D764DD6, 0x4D43EFB0, 0x54CCAA4D, 0xDFE49604, 0xE39ED1B5, 0x1B4C6A88, 0xB8C12C1F, 0x7F466551, + 0x049D5EEA, 0x5D018C35, 0x73FA8774, 0x2EFB0B41, 0x5AB3671D, 0x5292DBD2, 0x33E91056, 0x136DD647, + 0x8C9AD761, 0x7A37A10C, 0x8E59F814, 0x89EB133C, 0xEECEA927, 0x35B761C9, 0xEDE11CE5, 0x3C7A47B1, + 0x599CD2DF, 0x3F55F273, 0x791814CE, 0xBF73C737, 0xEA53F7CD, 0x5B5FFDAA, 0x14DF3D6F, 0x867844DB, + 0x81CAAFF3, 0x3EB968C4, 0x2C382434, 0x5FC2A340, 0x72161DC3, 0x0CBCE225, 0x8B283C49, 0x41FF0D95, + 0x7139A801, 0xDE080CB3, 0x9CD8B4E4, 0x906456C1, 0x617BCB84, 0x70D532B6, 0x74486C5C, 0x42D0B857 + ); /** * Precomputed invMixColumns table * - * @see Crypt_Rijndael() + * @see Crypt_Rijndael:_encryptBlock() + * @see Crypt_Rijndael:_decryptBlock() * @var Array * @access private */ - var $dt2; + var $dt2 = array( + 0xA75051F4, 0x65537E41, 0xA4C31A17, 0x5E963A27, 0x6BCB3BAB, 0x45F11F9D, 0x58ABACFA, 0x03934BE3, + 0xFA552030, 0x6DF6AD76, 0x769188CC, 0x4C25F502, 0xD7FC4FE5, 0xCBD7C52A, 0x44802635, 0xA38FB562, + 0x5A49DEB1, 0x1B6725BA, 0x0E9845EA, 0xC0E15DFE, 0x7502C32F, 0xF012814C, 0x97A38D46, 0xF9C66BD3, + 0x5FE7038F, 0x9C951592, 0x7AEBBF6D, 0x59DA9552, 0x832DD4BE, 0x21D35874, 0x692949E0, 0xC8448EC9, + 0x896A75C2, 0x7978F48E, 0x3E6B9958, 0x71DD27B9, 0x4FB6BEE1, 0xAD17F088, 0xAC66C920, 0x3AB47DCE, + 0x4A1863DF, 0x3182E51A, 0x33609751, 0x7F456253, 0x77E0B164, 0xAE84BB6B, 0xA01CFE81, 0x2B94F908, + 0x68587048, 0xFD198F45, 0x6C8794DE, 0xF8B7527B, 0xD323AB73, 0x02E2724B, 0x8F57E31F, 0xAB2A6655, + 0x2807B2EB, 0xC2032FB5, 0x7B9A86C5, 0x08A5D337, 0x87F23028, 0xA5B223BF, 0x6ABA0203, 0x825CED16, + 0x1C2B8ACF, 0xB492A779, 0xF2F0F307, 0xE2A14E69, 0xF4CD65DA, 0xBED50605, 0x621FD134, 0xFE8AC4A6, + 0x539D342E, 0x55A0A2F3, 0xE132058A, 0xEB75A4F6, 0xEC390B83, 0xEFAA4060, 0x9F065E71, 0x1051BD6E, + 0x8AF93E21, 0x063D96DD, 0x05AEDD3E, 0xBD464DE6, 0x8DB59154, 0x5D0571C4, 0xD46F0406, 0x15FF6050, + 0xFB241998, 0xE997D6BD, 0x43CC8940, 0x9E7767D9, 0x42BDB0E8, 0x8B880789, 0x5B38E719, 0xEEDB79C8, + 0x0A47A17C, 0x0FE97C42, 0x1EC9F884, 0x00000000, 0x86830980, 0xED48322B, 0x70AC1E11, 0x724E6C5A, + 0xFFFBFD0E, 0x38560F85, 0xD51E3DAE, 0x3927362D, 0xD9640A0F, 0xA621685C, 0x54D19B5B, 0x2E3A2436, + 0x67B10C0A, 0xE70F9357, 0x96D2B4EE, 0x919E1B9B, 0xC54F80C0, 0x20A261DC, 0x4B695A77, 0x1A161C12, + 0xBA0AE293, 0x2AE5C0A0, 0xE0433C22, 0x171D121B, 0x0D0B0E09, 0xC7ADF28B, 0xA8B92DB6, 0xA9C8141E, + 0x198557F1, 0x074CAF75, 0xDDBBEE99, 0x60FDA37F, 0x269FF701, 0xF5BC5C72, 0x3BC54466, 0x7E345BFB, + 0x29768B43, 0xC6DCCB23, 0xFC68B6ED, 0xF163B8E4, 0xDCCAD731, 0x85104263, 0x22401397, 0x112084C6, + 0x247D854A, 0x3DF8D2BB, 0x3211AEF9, 0xA16DC729, 0x2F4B1D9E, 0x30F3DCB2, 0x52EC0D86, 0xE3D077C1, + 0x166C2BB3, 0xB999A970, 0x48FA1194, 0x642247E9, 0x8CC4A8FC, 0x3F1AA0F0, 0x2CD8567D, 0x90EF2233, + 0x4EC78749, 0xD1C1D938, 0xA2FE8CCA, 0x0B3698D4, 0x81CFA6F5, 0xDE28A57A, 0x8E26DAB7, 0xBFA43FAD, + 0x9DE42C3A, 0x920D5078, 0xCC9B6A5F, 0x4662547E, 0x13C2F68D, 0xB8E890D8, 0xF75E2E39, 0xAFF582C3, + 0x80BE9F5D, 0x937C69D0, 0x2DA96FD5, 0x12B3CF25, 0x993BC8AC, 0x7DA71018, 0x636EE89C, 0xBB7BDB3B, + 0x7809CD26, 0x18F46E59, 0xB701EC9A, 0x9AA8834F, 0x6E65E695, 0xE67EAAFF, 0xCF0821BC, 0xE8E6EF15, + 0x9BD9BAE7, 0x36CE4A6F, 0x09D4EA9F, 0x7CD629B0, 0xB2AF31A4, 0x23312A3F, 0x9430C6A5, 0x66C035A2, + 0xBC37744E, 0xCAA6FC82, 0xD0B0E090, 0xD81533A7, 0x984AF104, 0xDAF741EC, 0x500E7FCD, 0xF62F1791, + 0xD68D764D, 0xB04D43EF, 0x4D54CCAA, 0x04DFE496, 0xB5E39ED1, 0x881B4C6A, 0x1FB8C12C, 0x517F4665, + 0xEA049D5E, 0x355D018C, 0x7473FA87, 0x412EFB0B, 0x1D5AB367, 0xD25292DB, 0x5633E910, 0x47136DD6, + 0x618C9AD7, 0x0C7A37A1, 0x148E59F8, 0x3C89EB13, 0x27EECEA9, 0xC935B761, 0xE5EDE11C, 0xB13C7A47, + 0xDF599CD2, 0x733F55F2, 0xCE791814, 0x37BF73C7, 0xCDEA53F7, 0xAA5B5FFD, 0x6F14DF3D, 0xDB867844, + 0xF381CAAF, 0xC43EB968, 0x342C3824, 0x405FC2A3, 0xC372161D, 0x250CBCE2, 0x498B283C, 0x9541FF0D, + 0x017139A8, 0xB3DE080C, 0xE49CD8B4, 0xC1906456, 0x84617BCB, 0xB670D532, 0x5C74486C, 0x5742D0B8 + ); /** * Precomputed invMixColumns table * - * @see Crypt_Rijndael() + * @see Crypt_Rijndael:_encryptBlock() + * @see Crypt_Rijndael:_decryptBlock() * @var Array * @access private */ - var $dt3; + var $dt3 = array( + 0xF4A75051, 0x4165537E, 0x17A4C31A, 0x275E963A, 0xAB6BCB3B, 0x9D45F11F, 0xFA58ABAC, 0xE303934B, + 0x30FA5520, 0x766DF6AD, 0xCC769188, 0x024C25F5, 0xE5D7FC4F, 0x2ACBD7C5, 0x35448026, 0x62A38FB5, + 0xB15A49DE, 0xBA1B6725, 0xEA0E9845, 0xFEC0E15D, 0x2F7502C3, 0x4CF01281, 0x4697A38D, 0xD3F9C66B, + 0x8F5FE703, 0x929C9515, 0x6D7AEBBF, 0x5259DA95, 0xBE832DD4, 0x7421D358, 0xE0692949, 0xC9C8448E, + 0xC2896A75, 0x8E7978F4, 0x583E6B99, 0xB971DD27, 0xE14FB6BE, 0x88AD17F0, 0x20AC66C9, 0xCE3AB47D, + 0xDF4A1863, 0x1A3182E5, 0x51336097, 0x537F4562, 0x6477E0B1, 0x6BAE84BB, 0x81A01CFE, 0x082B94F9, + 0x48685870, 0x45FD198F, 0xDE6C8794, 0x7BF8B752, 0x73D323AB, 0x4B02E272, 0x1F8F57E3, 0x55AB2A66, + 0xEB2807B2, 0xB5C2032F, 0xC57B9A86, 0x3708A5D3, 0x2887F230, 0xBFA5B223, 0x036ABA02, 0x16825CED, + 0xCF1C2B8A, 0x79B492A7, 0x07F2F0F3, 0x69E2A14E, 0xDAF4CD65, 0x05BED506, 0x34621FD1, 0xA6FE8AC4, + 0x2E539D34, 0xF355A0A2, 0x8AE13205, 0xF6EB75A4, 0x83EC390B, 0x60EFAA40, 0x719F065E, 0x6E1051BD, + 0x218AF93E, 0xDD063D96, 0x3E05AEDD, 0xE6BD464D, 0x548DB591, 0xC45D0571, 0x06D46F04, 0x5015FF60, + 0x98FB2419, 0xBDE997D6, 0x4043CC89, 0xD99E7767, 0xE842BDB0, 0x898B8807, 0x195B38E7, 0xC8EEDB79, + 0x7C0A47A1, 0x420FE97C, 0x841EC9F8, 0x00000000, 0x80868309, 0x2BED4832, 0x1170AC1E, 0x5A724E6C, + 0x0EFFFBFD, 0x8538560F, 0xAED51E3D, 0x2D392736, 0x0FD9640A, 0x5CA62168, 0x5B54D19B, 0x362E3A24, + 0x0A67B10C, 0x57E70F93, 0xEE96D2B4, 0x9B919E1B, 0xC0C54F80, 0xDC20A261, 0x774B695A, 0x121A161C, + 0x93BA0AE2, 0xA02AE5C0, 0x22E0433C, 0x1B171D12, 0x090D0B0E, 0x8BC7ADF2, 0xB6A8B92D, 0x1EA9C814, + 0xF1198557, 0x75074CAF, 0x99DDBBEE, 0x7F60FDA3, 0x01269FF7, 0x72F5BC5C, 0x663BC544, 0xFB7E345B, + 0x4329768B, 0x23C6DCCB, 0xEDFC68B6, 0xE4F163B8, 0x31DCCAD7, 0x63851042, 0x97224013, 0xC6112084, + 0x4A247D85, 0xBB3DF8D2, 0xF93211AE, 0x29A16DC7, 0x9E2F4B1D, 0xB230F3DC, 0x8652EC0D, 0xC1E3D077, + 0xB3166C2B, 0x70B999A9, 0x9448FA11, 0xE9642247, 0xFC8CC4A8, 0xF03F1AA0, 0x7D2CD856, 0x3390EF22, + 0x494EC787, 0x38D1C1D9, 0xCAA2FE8C, 0xD40B3698, 0xF581CFA6, 0x7ADE28A5, 0xB78E26DA, 0xADBFA43F, + 0x3A9DE42C, 0x78920D50, 0x5FCC9B6A, 0x7E466254, 0x8D13C2F6, 0xD8B8E890, 0x39F75E2E, 0xC3AFF582, + 0x5D80BE9F, 0xD0937C69, 0xD52DA96F, 0x2512B3CF, 0xAC993BC8, 0x187DA710, 0x9C636EE8, 0x3BBB7BDB, + 0x267809CD, 0x5918F46E, 0x9AB701EC, 0x4F9AA883, 0x956E65E6, 0xFFE67EAA, 0xBCCF0821, 0x15E8E6EF, + 0xE79BD9BA, 0x6F36CE4A, 0x9F09D4EA, 0xB07CD629, 0xA4B2AF31, 0x3F23312A, 0xA59430C6, 0xA266C035, + 0x4EBC3774, 0x82CAA6FC, 0x90D0B0E0, 0xA7D81533, 0x04984AF1, 0xECDAF741, 0xCD500E7F, 0x91F62F17, + 0x4DD68D76, 0xEFB04D43, 0xAA4D54CC, 0x9604DFE4, 0xD1B5E39E, 0x6A881B4C, 0x2C1FB8C1, 0x65517F46, + 0x5EEA049D, 0x8C355D01, 0x877473FA, 0x0B412EFB, 0x671D5AB3, 0xDBD25292, 0x105633E9, 0xD647136D, + 0xD7618C9A, 0xA10C7A37, 0xF8148E59, 0x133C89EB, 0xA927EECE, 0x61C935B7, 0x1CE5EDE1, 0x47B13C7A, + 0xD2DF599C, 0xF2733F55, 0x14CE7918, 0xC737BF73, 0xF7CDEA53, 0xFDAA5B5F, 0x3D6F14DF, 0x44DB8678, + 0xAFF381CA, 0x68C43EB9, 0x24342C38, 0xA3405FC2, 0x1DC37216, 0xE2250CBC, 0x3C498B28, 0x0D9541FF, + 0xA8017139, 0x0CB3DE08, 0xB4E49CD8, 0x56C19064, 0xCB84617B, 0x32B670D5, 0x6C5C7448, 0xB85742D0 + ); /** - * Is the mode one that is paddable? + * The SubByte S-Box * - * @see Crypt_Rijndael::Crypt_Rijndael() - * @var Boolean + * @see Crypt_Rijndael::_encryptBlock() + * @var Array * @access private */ - var $paddable = false; + var $sbox = array( + 0x63, 0x7C, 0x77, 0x7B, 0xF2, 0x6B, 0x6F, 0xC5, 0x30, 0x01, 0x67, 0x2B, 0xFE, 0xD7, 0xAB, 0x76, + 0xCA, 0x82, 0xC9, 0x7D, 0xFA, 0x59, 0x47, 0xF0, 0xAD, 0xD4, 0xA2, 0xAF, 0x9C, 0xA4, 0x72, 0xC0, + 0xB7, 0xFD, 0x93, 0x26, 0x36, 0x3F, 0xF7, 0xCC, 0x34, 0xA5, 0xE5, 0xF1, 0x71, 0xD8, 0x31, 0x15, + 0x04, 0xC7, 0x23, 0xC3, 0x18, 0x96, 0x05, 0x9A, 0x07, 0x12, 0x80, 0xE2, 0xEB, 0x27, 0xB2, 0x75, + 0x09, 0x83, 0x2C, 0x1A, 0x1B, 0x6E, 0x5A, 0xA0, 0x52, 0x3B, 0xD6, 0xB3, 0x29, 0xE3, 0x2F, 0x84, + 0x53, 0xD1, 0x00, 0xED, 0x20, 0xFC, 0xB1, 0x5B, 0x6A, 0xCB, 0xBE, 0x39, 0x4A, 0x4C, 0x58, 0xCF, + 0xD0, 0xEF, 0xAA, 0xFB, 0x43, 0x4D, 0x33, 0x85, 0x45, 0xF9, 0x02, 0x7F, 0x50, 0x3C, 0x9F, 0xA8, + 0x51, 0xA3, 0x40, 0x8F, 0x92, 0x9D, 0x38, 0xF5, 0xBC, 0xB6, 0xDA, 0x21, 0x10, 0xFF, 0xF3, 0xD2, + 0xCD, 0x0C, 0x13, 0xEC, 0x5F, 0x97, 0x44, 0x17, 0xC4, 0xA7, 0x7E, 0x3D, 0x64, 0x5D, 0x19, 0x73, + 0x60, 0x81, 0x4F, 0xDC, 0x22, 0x2A, 0x90, 0x88, 0x46, 0xEE, 0xB8, 0x14, 0xDE, 0x5E, 0x0B, 0xDB, + 0xE0, 0x32, 0x3A, 0x0A, 0x49, 0x06, 0x24, 0x5C, 0xC2, 0xD3, 0xAC, 0x62, 0x91, 0x95, 0xE4, 0x79, + 0xE7, 0xC8, 0x37, 0x6D, 0x8D, 0xD5, 0x4E, 0xA9, 0x6C, 0x56, 0xF4, 0xEA, 0x65, 0x7A, 0xAE, 0x08, + 0xBA, 0x78, 0x25, 0x2E, 0x1C, 0xA6, 0xB4, 0xC6, 0xE8, 0xDD, 0x74, 0x1F, 0x4B, 0xBD, 0x8B, 0x8A, + 0x70, 0x3E, 0xB5, 0x66, 0x48, 0x03, 0xF6, 0x0E, 0x61, 0x35, 0x57, 0xB9, 0x86, 0xC1, 0x1D, 0x9E, + 0xE1, 0xF8, 0x98, 0x11, 0x69, 0xD9, 0x8E, 0x94, 0x9B, 0x1E, 0x87, 0xE9, 0xCE, 0x55, 0x28, 0xDF, + 0x8C, 0xA1, 0x89, 0x0D, 0xBF, 0xE6, 0x42, 0x68, 0x41, 0x99, 0x2D, 0x0F, 0xB0, 0x54, 0xBB, 0x16 + ); /** - * Encryption buffer for CTR, OFB and CFB modes + * The inverse SubByte S-Box * - * @see Crypt_Rijndael::encrypt() - * @var String + * @see Crypt_Rijndael::_decryptBlock() + * @var Array * @access private */ - var $enbuffer = array('encrypted' => '', 'xor' => ''); - - /** - * Decryption buffer for CTR, OFB and CFB modes - * - * @see Crypt_Rijndael::decrypt() - * @var String - * @access private - */ - var $debuffer = array('ciphertext' => ''); + var $isbox = array( + 0x52, 0x09, 0x6A, 0xD5, 0x30, 0x36, 0xA5, 0x38, 0xBF, 0x40, 0xA3, 0x9E, 0x81, 0xF3, 0xD7, 0xFB, + 0x7C, 0xE3, 0x39, 0x82, 0x9B, 0x2F, 0xFF, 0x87, 0x34, 0x8E, 0x43, 0x44, 0xC4, 0xDE, 0xE9, 0xCB, + 0x54, 0x7B, 0x94, 0x32, 0xA6, 0xC2, 0x23, 0x3D, 0xEE, 0x4C, 0x95, 0x0B, 0x42, 0xFA, 0xC3, 0x4E, + 0x08, 0x2E, 0xA1, 0x66, 0x28, 0xD9, 0x24, 0xB2, 0x76, 0x5B, 0xA2, 0x49, 0x6D, 0x8B, 0xD1, 0x25, + 0x72, 0xF8, 0xF6, 0x64, 0x86, 0x68, 0x98, 0x16, 0xD4, 0xA4, 0x5C, 0xCC, 0x5D, 0x65, 0xB6, 0x92, + 0x6C, 0x70, 0x48, 0x50, 0xFD, 0xED, 0xB9, 0xDA, 0x5E, 0x15, 0x46, 0x57, 0xA7, 0x8D, 0x9D, 0x84, + 0x90, 0xD8, 0xAB, 0x00, 0x8C, 0xBC, 0xD3, 0x0A, 0xF7, 0xE4, 0x58, 0x05, 0xB8, 0xB3, 0x45, 0x06, + 0xD0, 0x2C, 0x1E, 0x8F, 0xCA, 0x3F, 0x0F, 0x02, 0xC1, 0xAF, 0xBD, 0x03, 0x01, 0x13, 0x8A, 0x6B, + 0x3A, 0x91, 0x11, 0x41, 0x4F, 0x67, 0xDC, 0xEA, 0x97, 0xF2, 0xCF, 0xCE, 0xF0, 0xB4, 0xE6, 0x73, + 0x96, 0xAC, 0x74, 0x22, 0xE7, 0xAD, 0x35, 0x85, 0xE2, 0xF9, 0x37, 0xE8, 0x1C, 0x75, 0xDF, 0x6E, + 0x47, 0xF1, 0x1A, 0x71, 0x1D, 0x29, 0xC5, 0x89, 0x6F, 0xB7, 0x62, 0x0E, 0xAA, 0x18, 0xBE, 0x1B, + 0xFC, 0x56, 0x3E, 0x4B, 0xC6, 0xD2, 0x79, 0x20, 0x9A, 0xDB, 0xC0, 0xFE, 0x78, 0xCD, 0x5A, 0xF4, + 0x1F, 0xDD, 0xA8, 0x33, 0x88, 0x07, 0xC7, 0x31, 0xB1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xEC, 0x5F, + 0x60, 0x51, 0x7F, 0xA9, 0x19, 0xB5, 0x4A, 0x0D, 0x2D, 0xE5, 0x7A, 0x9F, 0x93, 0xC9, 0x9C, 0xEF, + 0xA0, 0xE0, 0x3B, 0x4D, 0xAE, 0x2A, 0xF5, 0xB0, 0xC8, 0xEB, 0xBB, 0x3C, 0x83, 0x53, 0x99, 0x61, + 0x17, 0x2B, 0x04, 0x7E, 0xBA, 0x77, 0xD6, 0x26, 0xE1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0C, 0x7D + ); /** * Default Constructor. * - * Determines whether or not the mcrypt extension should be used. $mode should only, at present, be - * CRYPT_RIJNDAEL_MODE_ECB or CRYPT_RIJNDAEL_MODE_CBC. If not explictly set, CRYPT_RIJNDAEL_MODE_CBC will be used. + * Determines whether or not the mcrypt extension should be used. * + * $mode could be: + * + * - CRYPT_RIJNDAEL_MODE_ECB + * + * - CRYPT_RIJNDAEL_MODE_CBC + * + * - CRYPT_RIJNDAEL_MODE_CTR + * + * - CRYPT_RIJNDAEL_MODE_CFB + * + * - CRYPT_RIJNDAEL_MODE_OFB + * + * If not explictly set, CRYPT_RIJNDAEL_MODE_CBC will be used. + * + * @see Crypt_Base::Crypt_Base() * @param optional Integer $mode - * @return Crypt_Rijndael * @access public */ function Crypt_Rijndael($mode = CRYPT_RIJNDAEL_MODE_CBC) { - switch ($mode) { - case CRYPT_RIJNDAEL_MODE_ECB: - case CRYPT_RIJNDAEL_MODE_CBC: - $this->paddable = true; - $this->mode = $mode; - break; - case CRYPT_RIJNDAEL_MODE_CTR: - case CRYPT_RIJNDAEL_MODE_CFB: - case CRYPT_RIJNDAEL_MODE_OFB: - $this->mode = $mode; - break; - default: - $this->paddable = true; - $this->mode = CRYPT_RIJNDAEL_MODE_CBC; - } - - $t3 = &$this->t3; - $t2 = &$this->t2; - $t1 = &$this->t1; - $t0 = &$this->t0; - - $dt3 = &$this->dt3; - $dt2 = &$this->dt2; - $dt1 = &$this->dt1; - $dt0 = &$this->dt0; - - // according to (section 5.2.1), - // precomputed tables can be used in the mixColumns phase. in that example, they're assigned t0...t3, so - // those are the names we'll use. - $t3 = array( - 0x6363A5C6, 0x7C7C84F8, 0x777799EE, 0x7B7B8DF6, 0xF2F20DFF, 0x6B6BBDD6, 0x6F6FB1DE, 0xC5C55491, - 0x30305060, 0x01010302, 0x6767A9CE, 0x2B2B7D56, 0xFEFE19E7, 0xD7D762B5, 0xABABE64D, 0x76769AEC, - 0xCACA458F, 0x82829D1F, 0xC9C94089, 0x7D7D87FA, 0xFAFA15EF, 0x5959EBB2, 0x4747C98E, 0xF0F00BFB, - 0xADADEC41, 0xD4D467B3, 0xA2A2FD5F, 0xAFAFEA45, 0x9C9CBF23, 0xA4A4F753, 0x727296E4, 0xC0C05B9B, - 0xB7B7C275, 0xFDFD1CE1, 0x9393AE3D, 0x26266A4C, 0x36365A6C, 0x3F3F417E, 0xF7F702F5, 0xCCCC4F83, - 0x34345C68, 0xA5A5F451, 0xE5E534D1, 0xF1F108F9, 0x717193E2, 0xD8D873AB, 0x31315362, 0x15153F2A, - 0x04040C08, 0xC7C75295, 0x23236546, 0xC3C35E9D, 0x18182830, 0x9696A137, 0x05050F0A, 0x9A9AB52F, - 0x0707090E, 0x12123624, 0x80809B1B, 0xE2E23DDF, 0xEBEB26CD, 0x2727694E, 0xB2B2CD7F, 0x75759FEA, - 0x09091B12, 0x83839E1D, 0x2C2C7458, 0x1A1A2E34, 0x1B1B2D36, 0x6E6EB2DC, 0x5A5AEEB4, 0xA0A0FB5B, - 0x5252F6A4, 0x3B3B4D76, 0xD6D661B7, 0xB3B3CE7D, 0x29297B52, 0xE3E33EDD, 0x2F2F715E, 0x84849713, - 0x5353F5A6, 0xD1D168B9, 0x00000000, 0xEDED2CC1, 0x20206040, 0xFCFC1FE3, 0xB1B1C879, 0x5B5BEDB6, - 0x6A6ABED4, 0xCBCB468D, 0xBEBED967, 0x39394B72, 0x4A4ADE94, 0x4C4CD498, 0x5858E8B0, 0xCFCF4A85, - 0xD0D06BBB, 0xEFEF2AC5, 0xAAAAE54F, 0xFBFB16ED, 0x4343C586, 0x4D4DD79A, 0x33335566, 0x85859411, - 0x4545CF8A, 0xF9F910E9, 0x02020604, 0x7F7F81FE, 0x5050F0A0, 0x3C3C4478, 0x9F9FBA25, 0xA8A8E34B, - 0x5151F3A2, 0xA3A3FE5D, 0x4040C080, 0x8F8F8A05, 0x9292AD3F, 0x9D9DBC21, 0x38384870, 0xF5F504F1, - 0xBCBCDF63, 0xB6B6C177, 0xDADA75AF, 0x21216342, 0x10103020, 0xFFFF1AE5, 0xF3F30EFD, 0xD2D26DBF, - 0xCDCD4C81, 0x0C0C1418, 0x13133526, 0xECEC2FC3, 0x5F5FE1BE, 0x9797A235, 0x4444CC88, 0x1717392E, - 0xC4C45793, 0xA7A7F255, 0x7E7E82FC, 0x3D3D477A, 0x6464ACC8, 0x5D5DE7BA, 0x19192B32, 0x737395E6, - 0x6060A0C0, 0x81819819, 0x4F4FD19E, 0xDCDC7FA3, 0x22226644, 0x2A2A7E54, 0x9090AB3B, 0x8888830B, - 0x4646CA8C, 0xEEEE29C7, 0xB8B8D36B, 0x14143C28, 0xDEDE79A7, 0x5E5EE2BC, 0x0B0B1D16, 0xDBDB76AD, - 0xE0E03BDB, 0x32325664, 0x3A3A4E74, 0x0A0A1E14, 0x4949DB92, 0x06060A0C, 0x24246C48, 0x5C5CE4B8, - 0xC2C25D9F, 0xD3D36EBD, 0xACACEF43, 0x6262A6C4, 0x9191A839, 0x9595A431, 0xE4E437D3, 0x79798BF2, - 0xE7E732D5, 0xC8C8438B, 0x3737596E, 0x6D6DB7DA, 0x8D8D8C01, 0xD5D564B1, 0x4E4ED29C, 0xA9A9E049, - 0x6C6CB4D8, 0x5656FAAC, 0xF4F407F3, 0xEAEA25CF, 0x6565AFCA, 0x7A7A8EF4, 0xAEAEE947, 0x08081810, - 0xBABAD56F, 0x787888F0, 0x25256F4A, 0x2E2E725C, 0x1C1C2438, 0xA6A6F157, 0xB4B4C773, 0xC6C65197, - 0xE8E823CB, 0xDDDD7CA1, 0x74749CE8, 0x1F1F213E, 0x4B4BDD96, 0xBDBDDC61, 0x8B8B860D, 0x8A8A850F, - 0x707090E0, 0x3E3E427C, 0xB5B5C471, 0x6666AACC, 0x4848D890, 0x03030506, 0xF6F601F7, 0x0E0E121C, - 0x6161A3C2, 0x35355F6A, 0x5757F9AE, 0xB9B9D069, 0x86869117, 0xC1C15899, 0x1D1D273A, 0x9E9EB927, - 0xE1E138D9, 0xF8F813EB, 0x9898B32B, 0x11113322, 0x6969BBD2, 0xD9D970A9, 0x8E8E8907, 0x9494A733, - 0x9B9BB62D, 0x1E1E223C, 0x87879215, 0xE9E920C9, 0xCECE4987, 0x5555FFAA, 0x28287850, 0xDFDF7AA5, - 0x8C8C8F03, 0xA1A1F859, 0x89898009, 0x0D0D171A, 0xBFBFDA65, 0xE6E631D7, 0x4242C684, 0x6868B8D0, - 0x4141C382, 0x9999B029, 0x2D2D775A, 0x0F0F111E, 0xB0B0CB7B, 0x5454FCA8, 0xBBBBD66D, 0x16163A2C - ); - - $dt3 = array( - 0xF4A75051, 0x4165537E, 0x17A4C31A, 0x275E963A, 0xAB6BCB3B, 0x9D45F11F, 0xFA58ABAC, 0xE303934B, - 0x30FA5520, 0x766DF6AD, 0xCC769188, 0x024C25F5, 0xE5D7FC4F, 0x2ACBD7C5, 0x35448026, 0x62A38FB5, - 0xB15A49DE, 0xBA1B6725, 0xEA0E9845, 0xFEC0E15D, 0x2F7502C3, 0x4CF01281, 0x4697A38D, 0xD3F9C66B, - 0x8F5FE703, 0x929C9515, 0x6D7AEBBF, 0x5259DA95, 0xBE832DD4, 0x7421D358, 0xE0692949, 0xC9C8448E, - 0xC2896A75, 0x8E7978F4, 0x583E6B99, 0xB971DD27, 0xE14FB6BE, 0x88AD17F0, 0x20AC66C9, 0xCE3AB47D, - 0xDF4A1863, 0x1A3182E5, 0x51336097, 0x537F4562, 0x6477E0B1, 0x6BAE84BB, 0x81A01CFE, 0x082B94F9, - 0x48685870, 0x45FD198F, 0xDE6C8794, 0x7BF8B752, 0x73D323AB, 0x4B02E272, 0x1F8F57E3, 0x55AB2A66, - 0xEB2807B2, 0xB5C2032F, 0xC57B9A86, 0x3708A5D3, 0x2887F230, 0xBFA5B223, 0x036ABA02, 0x16825CED, - 0xCF1C2B8A, 0x79B492A7, 0x07F2F0F3, 0x69E2A14E, 0xDAF4CD65, 0x05BED506, 0x34621FD1, 0xA6FE8AC4, - 0x2E539D34, 0xF355A0A2, 0x8AE13205, 0xF6EB75A4, 0x83EC390B, 0x60EFAA40, 0x719F065E, 0x6E1051BD, - 0x218AF93E, 0xDD063D96, 0x3E05AEDD, 0xE6BD464D, 0x548DB591, 0xC45D0571, 0x06D46F04, 0x5015FF60, - 0x98FB2419, 0xBDE997D6, 0x4043CC89, 0xD99E7767, 0xE842BDB0, 0x898B8807, 0x195B38E7, 0xC8EEDB79, - 0x7C0A47A1, 0x420FE97C, 0x841EC9F8, 0x00000000, 0x80868309, 0x2BED4832, 0x1170AC1E, 0x5A724E6C, - 0x0EFFFBFD, 0x8538560F, 0xAED51E3D, 0x2D392736, 0x0FD9640A, 0x5CA62168, 0x5B54D19B, 0x362E3A24, - 0x0A67B10C, 0x57E70F93, 0xEE96D2B4, 0x9B919E1B, 0xC0C54F80, 0xDC20A261, 0x774B695A, 0x121A161C, - 0x93BA0AE2, 0xA02AE5C0, 0x22E0433C, 0x1B171D12, 0x090D0B0E, 0x8BC7ADF2, 0xB6A8B92D, 0x1EA9C814, - 0xF1198557, 0x75074CAF, 0x99DDBBEE, 0x7F60FDA3, 0x01269FF7, 0x72F5BC5C, 0x663BC544, 0xFB7E345B, - 0x4329768B, 0x23C6DCCB, 0xEDFC68B6, 0xE4F163B8, 0x31DCCAD7, 0x63851042, 0x97224013, 0xC6112084, - 0x4A247D85, 0xBB3DF8D2, 0xF93211AE, 0x29A16DC7, 0x9E2F4B1D, 0xB230F3DC, 0x8652EC0D, 0xC1E3D077, - 0xB3166C2B, 0x70B999A9, 0x9448FA11, 0xE9642247, 0xFC8CC4A8, 0xF03F1AA0, 0x7D2CD856, 0x3390EF22, - 0x494EC787, 0x38D1C1D9, 0xCAA2FE8C, 0xD40B3698, 0xF581CFA6, 0x7ADE28A5, 0xB78E26DA, 0xADBFA43F, - 0x3A9DE42C, 0x78920D50, 0x5FCC9B6A, 0x7E466254, 0x8D13C2F6, 0xD8B8E890, 0x39F75E2E, 0xC3AFF582, - 0x5D80BE9F, 0xD0937C69, 0xD52DA96F, 0x2512B3CF, 0xAC993BC8, 0x187DA710, 0x9C636EE8, 0x3BBB7BDB, - 0x267809CD, 0x5918F46E, 0x9AB701EC, 0x4F9AA883, 0x956E65E6, 0xFFE67EAA, 0xBCCF0821, 0x15E8E6EF, - 0xE79BD9BA, 0x6F36CE4A, 0x9F09D4EA, 0xB07CD629, 0xA4B2AF31, 0x3F23312A, 0xA59430C6, 0xA266C035, - 0x4EBC3774, 0x82CAA6FC, 0x90D0B0E0, 0xA7D81533, 0x04984AF1, 0xECDAF741, 0xCD500E7F, 0x91F62F17, - 0x4DD68D76, 0xEFB04D43, 0xAA4D54CC, 0x9604DFE4, 0xD1B5E39E, 0x6A881B4C, 0x2C1FB8C1, 0x65517F46, - 0x5EEA049D, 0x8C355D01, 0x877473FA, 0x0B412EFB, 0x671D5AB3, 0xDBD25292, 0x105633E9, 0xD647136D, - 0xD7618C9A, 0xA10C7A37, 0xF8148E59, 0x133C89EB, 0xA927EECE, 0x61C935B7, 0x1CE5EDE1, 0x47B13C7A, - 0xD2DF599C, 0xF2733F55, 0x14CE7918, 0xC737BF73, 0xF7CDEA53, 0xFDAA5B5F, 0x3D6F14DF, 0x44DB8678, - 0xAFF381CA, 0x68C43EB9, 0x24342C38, 0xA3405FC2, 0x1DC37216, 0xE2250CBC, 0x3C498B28, 0x0D9541FF, - 0xA8017139, 0x0CB3DE08, 0xB4E49CD8, 0x56C19064, 0xCB84617B, 0x32B670D5, 0x6C5C7448, 0xB85742D0 - ); - - for ($i = 0; $i < 256; $i++) { - $t2[$i << 8] = (($t3[$i] << 8) & 0xFFFFFF00) | (($t3[$i] >> 24) & 0x000000FF); - $t1[$i << 16] = (($t3[$i] << 16) & 0xFFFF0000) | (($t3[$i] >> 16) & 0x0000FFFF); - $t0[$i << 24] = (($t3[$i] << 24) & 0xFF000000) | (($t3[$i] >> 8) & 0x00FFFFFF); - - $dt2[$i << 8] = (($this->dt3[$i] << 8) & 0xFFFFFF00) | (($dt3[$i] >> 24) & 0x000000FF); - $dt1[$i << 16] = (($this->dt3[$i] << 16) & 0xFFFF0000) | (($dt3[$i] >> 16) & 0x0000FFFF); - $dt0[$i << 24] = (($this->dt3[$i] << 24) & 0xFF000000) | (($dt3[$i] >> 8) & 0x00FFFFFF); - } + parent::Crypt_Base($mode); } /** @@ -530,58 +714,82 @@ class Crypt_Rijndael { * * If the key is not explicitly set, it'll be assumed to be all null bytes. * + * Note: 160/224-bit keys must explicitly set by setKeyLength(), otherwise they will be round/pad up to 192/256 bits. + * + * @see Crypt_Base:setKey() + * @see setKeyLength() * @access public * @param String $key */ function setKey($key) { - $this->key = $key; - $this->changed = true; - } + parent::setKey($key); - /** - * Sets the initialization vector. (optional) - * - * SetIV is not required when CRYPT_RIJNDAEL_MODE_ECB is being used. If not explictly set, it'll be assumed - * to be all zero's. - * - * @access public - * @param String $iv - */ - function setIV($iv) - { - $this->encryptIV = $this->decryptIV = $this->iv = str_pad(substr($iv, 0, $this->block_size), $this->block_size, chr(0));; + if (!$this->explicit_key_length) { + $length = strlen($key); + switch (true) { + case $length <= 16: + $this->key_size = 16; + break; + case $length <= 24: + $this->key_size = 24; + break; + default: + $this->key_size = 32; + } + $this->_setupEngine(); + } } /** * Sets the key length * * Valid key lengths are 128, 160, 192, 224, and 256. If the length is less than 128, it will be rounded up to - * 128. If the length is greater then 128 and invalid, it will be rounded down to the closest valid amount. + * 128. If the length is greater than 128 and invalid, it will be rounded down to the closest valid amount. + * + * Note: phpseclib extends Rijndael (and AES) for using 160- and 224-bit keys but they are officially not defined + * and the most (if not all) implementations are not able using 160/224-bit keys but round/pad them up to + * 192/256 bits as, for example, mcrypt will do. + * + * That said, if you want be compatible with other Rijndael and AES implementations, + * you should not setKeyLength(160) or setKeyLength(224). + * + * Additional: In case of 160- and 224-bit keys, phpseclib will/can, for that reason, not use + * the mcrypt php extention, even if available. + * This results then in slower encryption. * * @access public * @param Integer $length */ function setKeyLength($length) { - $length >>= 5; - if ($length > 8) { - $length = 8; - } else if ($length < 4) { - $length = 4; + switch (true) { + case $length == 160: + $this->key_size = 20; + break; + case $length == 224: + $this->key_size = 28; + break; + case $length <= 128: + $this->key_size = 16; + break; + case $length <= 192: + $this->key_size = 24; + break; + default: + $this->key_size = 32; } - $this->Nk = $length; - $this->key_size = $length << 2; $this->explicit_key_length = true; $this->changed = true; + $this->_setupEngine(); } /** * Sets the block length * * Valid block lengths are 128, 160, 192, 224, and 256. If the length is less than 128, it will be rounded up to - * 128. If the length is greater then 128 and invalid, it will be rounded down to the closest valid amount. + * 128. If the length is greater than 128 and invalid, it will be rounded down to the closest valid amount. * * @access public * @param Integer $length @@ -597,293 +805,76 @@ class Crypt_Rijndael { $this->Nb = $length; $this->block_size = $length << 2; $this->changed = true; + $this->_setupEngine(); } /** - * Generate CTR XOR encryption key + * Setup the fastest possible $engine * - * Encrypt the output of this and XOR it against the ciphertext / plaintext to get the - * plaintext / ciphertext in CTR mode. + * Determines if the mcrypt (MODE_MCRYPT) $engine available + * and usable for the current $block_size and $key_size. * - * @see Crypt_Rijndael::decrypt() - * @see Crypt_Rijndael::encrypt() - * @access public - * @param Integer $length - * @param String $iv + * If not, the slower MODE_INTERNAL $engine will be set. + * + * @see setKey() + * @see setKeyLength() + * @see setBlockLength() + * @access private */ - function _generate_xor($length, &$iv) + function _setupEngine() { - $xor = ''; - $block_size = $this->block_size; - $num_blocks = floor(($length + ($block_size - 1)) / $block_size); - for ($i = 0; $i < $num_blocks; $i++) { - $xor.= $iv; - for ($j = 4; $j <= $block_size; $j+=4) { - $temp = substr($iv, -$j, 4); - switch ($temp) { - case "\xFF\xFF\xFF\xFF": - $iv = substr_replace($iv, "\x00\x00\x00\x00", -$j, 4); - break; - case "\x7F\xFF\xFF\xFF": - $iv = substr_replace($iv, "\x80\x00\x00\x00", -$j, 4); - break 2; - default: - extract(unpack('Ncount', $temp)); - $iv = substr_replace($iv, pack('N', $count + 1), -$j, 4); - break 2; - } + if (constant('CRYPT_' . $this->const_namespace . '_MODE') == CRYPT_MODE_INTERNAL) { + // No mcrypt support at all for rijndael + return; + } + + // The required mcrypt module name for the current $block_size of rijndael + $cipher_name_mcrypt = 'rijndael-' . ($this->block_size << 3); + + // Determining the availibility/usability of $cipher_name_mcrypt + switch (true) { + case $this->key_size % 8: // mcrypt is not usable for 160/224-bit keys, only for 128/192/256-bit keys + case !in_array($cipher_name_mcrypt, mcrypt_list_algorithms()): // $cipher_name_mcrypt is not available for the current $block_size + $engine = CRYPT_MODE_INTERNAL; + break; + default: + $engine = CRYPT_MODE_MCRYPT; + } + + if ($this->engine == $engine && $this->cipher_name_mcrypt == $cipher_name_mcrypt) { + // allready set, so we not unnecessary close $this->enmcrypt/demcrypt/ecb + return; + } + + // Set the $engine + $this->engine = $engine; + $this->cipher_name_mcrypt = $cipher_name_mcrypt; + + if ($this->enmcrypt) { + // Closing the current mcrypt resource(s). _mcryptSetup() will, if needed, + // (re)open them with the module named in $this->cipher_name_mcrypt + mcrypt_module_close($this->enmcrypt); + mcrypt_module_close($this->demcrypt); + $this->enmcrypt = null; + $this->demcrypt = null; + + if ($this->ecb) { + mcrypt_module_close($this->ecb); + $this->ecb = null; } } - - return $xor; } /** - * Encrypts a message. + * Setup the CRYPT_MODE_MCRYPT $engine * - * $plaintext will be padded with additional bytes such that it's length is a multiple of the block size. Other Rjindael - * implementations may or may not pad in the same manner. Other common approaches to padding and the reasons why it's - * necessary are discussed in the following - * URL: - * - * {@link http://www.di-mgt.com.au/cryptopad.html http://www.di-mgt.com.au/cryptopad.html} - * - * An alternative to padding is to, separately, send the length of the file. This is what SSH, in fact, does. - * strlen($plaintext) will still need to be a multiple of 8, however, arbitrary values can be added to make it that - * length. - * - * @see Crypt_Rijndael::decrypt() - * @access public - * @param String $plaintext + * @see Crypt_Base::_setupMcrypt() + * @access private */ - function encrypt($plaintext) + function _setupMcrypt() { - $this->_setup(); - if ($this->paddable) { - $plaintext = $this->_pad($plaintext); - } - - $block_size = $this->block_size; - $buffer = &$this->enbuffer; - $continuousBuffer = $this->continuousBuffer; - $ciphertext = ''; - switch ($this->mode) { - case CRYPT_RIJNDAEL_MODE_ECB: - for ($i = 0; $i < strlen($plaintext); $i+=$block_size) { - $ciphertext.= $this->_encryptBlock(substr($plaintext, $i, $block_size)); - } - break; - case CRYPT_RIJNDAEL_MODE_CBC: - $xor = $this->encryptIV; - for ($i = 0; $i < strlen($plaintext); $i+=$block_size) { - $block = substr($plaintext, $i, $block_size); - $block = $this->_encryptBlock($block ^ $xor); - $xor = $block; - $ciphertext.= $block; - } - if ($this->continuousBuffer) { - $this->encryptIV = $xor; - } - break; - case CRYPT_RIJNDAEL_MODE_CTR: - $xor = $this->encryptIV; - if (!empty($buffer)) { - for ($i = 0; $i < strlen($plaintext); $i+=$block_size) { - $block = substr($plaintext, $i, $block_size); - $buffer.= $this->_encryptBlock($this->_generate_xor($block_size, $xor)); - $key = $this->_string_shift($buffer, $block_size); - $ciphertext.= $block ^ $key; - } - } else { - for ($i = 0; $i < strlen($plaintext); $i+=$block_size) { - $block = substr($plaintext, $i, $block_size); - $key = $this->_encryptBlock($this->_generate_xor($block_size, $xor)); - $ciphertext.= $block ^ $key; - } - } - if ($this->continuousBuffer) { - $this->encryptIV = $xor; - if ($start = strlen($plaintext) % $block_size) { - $buffer = substr($key, $start) . $buffer; - } - } - break; - case CRYPT_RIJNDAEL_MODE_CFB: - if (!empty($buffer['xor'])) { - $ciphertext = $plaintext ^ $buffer['xor']; - $iv = $buffer['encrypted'] . $ciphertext; - $start = strlen($ciphertext); - $buffer['encrypted'].= $ciphertext; - $buffer['xor'] = substr($buffer['xor'], strlen($ciphertext)); - } else { - $ciphertext = ''; - $iv = $this->encryptIV; - $start = 0; - } - - for ($i = $start; $i < strlen($plaintext); $i+=$block_size) { - $block = substr($plaintext, $i, $block_size); - $xor = $this->_encryptBlock($iv); - $iv = $block ^ $xor; - if ($continuousBuffer && strlen($iv) != $block_size) { - $buffer = array( - 'encrypted' => $iv, - 'xor' => substr($xor, strlen($iv)) - ); - } - $ciphertext.= $iv; - } - - if ($this->continuousBuffer) { - $this->encryptIV = $iv; - } - break; - case CRYPT_RIJNDAEL_MODE_OFB: - $xor = $this->encryptIV; - if (strlen($buffer)) { - for ($i = 0; $i < strlen($plaintext); $i+=$block_size) { - $xor = $this->_encryptBlock($xor); - $buffer.= $xor; - $key = $this->_string_shift($buffer, $block_size); - $ciphertext.= substr($plaintext, $i, $block_size) ^ $key; - } - } else { - for ($i = 0; $i < strlen($plaintext); $i+=$block_size) { - $xor = $this->_encryptBlock($xor); - $ciphertext.= substr($plaintext, $i, $block_size) ^ $xor; - } - $key = $xor; - } - if ($this->continuousBuffer) { - $this->encryptIV = $xor; - if ($start = strlen($plaintext) % $block_size) { - $buffer = substr($key, $start) . $buffer; - } - } - } - - return $ciphertext; - } - - /** - * Decrypts a message. - * - * If strlen($ciphertext) is not a multiple of the block size, null bytes will be added to the end of the string until - * it is. - * - * @see Crypt_Rijndael::encrypt() - * @access public - * @param String $ciphertext - */ - function decrypt($ciphertext) - { - $this->_setup(); - - if ($this->paddable) { - // we pad with chr(0) since that's what mcrypt_generic does. to quote from http://php.net/function.mcrypt-generic : - // "The data is padded with "\0" to make sure the length of the data is n * blocksize." - $ciphertext = str_pad($ciphertext, strlen($ciphertext) + ($this->block_size - strlen($ciphertext) % $this->block_size) % $this->block_size, chr(0)); - } - - $block_size = $this->block_size; - $buffer = &$this->debuffer; - $continuousBuffer = $this->continuousBuffer; - $plaintext = ''; - switch ($this->mode) { - case CRYPT_RIJNDAEL_MODE_ECB: - for ($i = 0; $i < strlen($ciphertext); $i+=$block_size) { - $plaintext.= $this->_decryptBlock(substr($ciphertext, $i, $block_size)); - } - break; - case CRYPT_RIJNDAEL_MODE_CBC: - $xor = $this->decryptIV; - for ($i = 0; $i < strlen($ciphertext); $i+=$block_size) { - $block = substr($ciphertext, $i, $block_size); - $plaintext.= $this->_decryptBlock($block) ^ $xor; - $xor = $block; - } - if ($this->continuousBuffer) { - $this->decryptIV = $xor; - } - break; - case CRYPT_RIJNDAEL_MODE_CTR: - $xor = $this->decryptIV; - if (strlen($buffer)) { - for ($i = 0; $i < strlen($ciphertext); $i+=$block_size) { - $block = substr($ciphertext, $i, $block_size); - $buffer.= $this->_encryptBlock($this->_generate_xor($block_size, $xor)); - $key = $this->_string_shift($buffer, $block_size); - $plaintext.= $block ^ $key; - } - } else { - for ($i = 0; $i < strlen($ciphertext); $i+=$block_size) { - $block = substr($ciphertext, $i, $block_size); - $key = $this->_encryptBlock($this->_generate_xor($block_size, $xor)); - $plaintext.= $block ^ $key; - } - } - if ($this->continuousBuffer) { - $this->decryptIV = $xor; - if ($start = strlen($ciphertext) % $block_size) { - $buffer = substr($key, $start) . $buffer; - } - } - break; - case CRYPT_RIJNDAEL_MODE_CFB: - if (!empty($buffer['ciphertext'])) { - $plaintext = $ciphertext ^ substr($this->decryptIV, strlen($buffer['ciphertext'])); - $buffer['ciphertext'].= substr($ciphertext, 0, strlen($plaintext)); - if (strlen($buffer['ciphertext']) == $block_size) { - $xor = $this->_encryptBlock($buffer['ciphertext']); - $buffer['ciphertext'] = ''; - } - $start = strlen($plaintext); - $block = $this->decryptIV; - } else { - $plaintext = ''; - $xor = $this->_encryptBlock($this->decryptIV); - $start = 0; - } - - for ($i = $start; $i < strlen($ciphertext); $i+=$block_size) { - $block = substr($ciphertext, $i, $block_size); - $plaintext.= $block ^ $xor; - if ($continuousBuffer && strlen($block) != $block_size) { - $buffer['ciphertext'].= $block; - $block = $xor; - } else if (strlen($block) == $block_size) { - $xor = $this->_encryptBlock($block); - } - } - if ($this->continuousBuffer) { - $this->decryptIV = $block; - } - break; - case CRYPT_RIJNDAEL_MODE_OFB: - $xor = $this->decryptIV; - if (strlen($buffer)) { - for ($i = 0; $i < strlen($ciphertext); $i+=$block_size) { - $xor = $this->_encryptBlock($xor); - $buffer.= $xor; - $key = $this->_string_shift($buffer, $block_size); - $plaintext.= substr($ciphertext, $i, $block_size) ^ $key; - } - } else { - for ($i = 0; $i < strlen($ciphertext); $i+=$block_size) { - $xor = $this->_encryptBlock($xor); - $plaintext.= substr($ciphertext, $i, $block_size) ^ $xor; - } - $key = $xor; - } - if ($this->continuousBuffer) { - $this->decryptIV = $xor; - if ($start = strlen($ciphertext) % $block_size) { - $buffer = substr($key, $start) . $buffer; - } - } - } - - return $this->paddable ? $this->_unpad($plaintext) : $plaintext; + $this->key = str_pad(substr($this->key, 0, $this->key_size), $this->key_size, "\0"); + parent::_setupMcrypt(); } /** @@ -895,59 +886,66 @@ class Crypt_Rijndael { */ function _encryptBlock($in) { - $state = array(); - $words = unpack('N*word', $in); - - $w = $this->w; - $t0 = $this->t0; - $t1 = $this->t1; - $t2 = $this->t2; - $t3 = $this->t3; - $Nb = $this->Nb; - $Nr = $this->Nr; - $c = $this->c; - - // addRoundKey - $i = 0; - foreach ($words as $word) { - $state[] = $word ^ $w[0][$i++]; + static $t0, $t1, $t2, $t3, $sbox; + if (!$t0) { + for ($i = 0; $i < 256; ++$i) { + $t0[] = (int)$this->t0[$i]; + $t1[] = (int)$this->t1[$i]; + $t2[] = (int)$this->t2[$i]; + $t3[] = (int)$this->t3[$i]; + $sbox[] = (int)$this->sbox[$i]; + } } - // fips-197.pdf#page=19, "Figure 5. Pseudo Code for the Cipher", states that this loop has four components - - // subBytes, shiftRows, mixColumns, and addRoundKey. fips-197.pdf#page=30, "Implementation Suggestions Regarding + $state = array(); + $words = unpack('N*', $in); + + $c = $this->c; + $w = $this->w; + $Nb = $this->Nb; + $Nr = $this->Nr; + + // addRoundKey + $i = -1; + foreach ($words as $word) { + $state[] = $word ^ $w[0][++$i]; + } + + // fips-197.pdf#page=19, "Figure 5. Pseudo Code for the Cipher", states that this loop has four components - + // subBytes, shiftRows, mixColumns, and addRoundKey. fips-197.pdf#page=30, "Implementation Suggestions Regarding // Various Platforms" suggests that performs enhanced implementations are described in Rijndael-ammended.pdf. // Rijndael-ammended.pdf#page=20, "Implementation aspects / 32-bit processor", discusses such an optimization. - // Unfortunately, the description given there is not quite correct. Per aes.spec.v316.pdf#page=19 [1], + // Unfortunately, the description given there is not quite correct. Per aes.spec.v316.pdf#page=19 [1], // equation (7.4.7) is supposed to use addition instead of subtraction, so we'll do that here, as well. // [1] http://fp.gladman.plus.com/cryptography_technology/rijndael/aes.spec.v316.pdf $temp = array(); - for ($round = 1; $round < $Nr; $round++) { + for ($round = 1; $round < $Nr; ++$round) { $i = 0; // $c[0] == 0 $j = $c[1]; $k = $c[2]; $l = $c[3]; - while ($i < $this->Nb) { - $temp[$i] = $t0[$state[$i] & 0xFF000000] ^ - $t1[$state[$j] & 0x00FF0000] ^ - $t2[$state[$k] & 0x0000FF00] ^ - $t3[$state[$l] & 0x000000FF] ^ + while ($i < $Nb) { + $temp[$i] = $t0[$state[$i] >> 24 & 0x000000FF] ^ + $t1[$state[$j] >> 16 & 0x000000FF] ^ + $t2[$state[$k] >> 8 & 0x000000FF] ^ + $t3[$state[$l] & 0x000000FF] ^ $w[$round][$i]; - $i++; + ++$i; $j = ($j + 1) % $Nb; $k = ($k + 1) % $Nb; $l = ($l + 1) % $Nb; } - - for ($i = 0; $i < $Nb; $i++) { - $state[$i] = $temp[$i]; - } + $state = $temp; } // subWord - for ($i = 0; $i < $Nb; $i++) { - $state[$i] = $this->_subWord($state[$i]); + for ($i = 0; $i < $Nb; ++$i) { + $state[$i] = $sbox[$state[$i] & 0x000000FF] | + ($sbox[$state[$i] >> 8 & 0x000000FF] << 8) | + ($sbox[$state[$i] >> 16 & 0x000000FF] << 16) | + ($sbox[$state[$i] >> 24 & 0x000000FF] << 24); } // shiftRows + addRoundKey @@ -955,22 +953,30 @@ class Crypt_Rijndael { $j = $c[1]; $k = $c[2]; $l = $c[3]; - while ($i < $this->Nb) { - $temp[$i] = ($state[$i] & 0xFF000000) ^ - ($state[$j] & 0x00FF0000) ^ - ($state[$k] & 0x0000FF00) ^ + while ($i < $Nb) { + $temp[$i] = ($state[$i] & 0xFF000000) ^ + ($state[$j] & 0x00FF0000) ^ + ($state[$k] & 0x0000FF00) ^ ($state[$l] & 0x000000FF) ^ $w[$Nr][$i]; - $i++; + ++$i; $j = ($j + 1) % $Nb; $k = ($k + 1) % $Nb; $l = ($l + 1) % $Nb; } - $state = $temp; - array_unshift($state, 'N*'); - - return call_user_func_array('pack', $state); + switch ($Nb) { + case 8: + return pack('N*', $temp[0], $temp[1], $temp[2], $temp[3], $temp[4], $temp[5], $temp[6], $temp[7]); + case 7: + return pack('N*', $temp[0], $temp[1], $temp[2], $temp[3], $temp[4], $temp[5], $temp[6]); + case 6: + return pack('N*', $temp[0], $temp[1], $temp[2], $temp[3], $temp[4], $temp[5]); + case 5: + return pack('N*', $temp[0], $temp[1], $temp[2], $temp[3], $temp[4]); + default: + return pack('N*', $temp[0], $temp[1], $temp[2], $temp[3]); + } } /** @@ -982,47 +988,50 @@ class Crypt_Rijndael { */ function _decryptBlock($in) { - $state = array(); - $words = unpack('N*word', $in); + static $dt0, $dt1, $dt2, $dt3, $isbox; + if (!$dt0) { + for ($i = 0; $i < 256; ++$i) { + $dt0[] = (int)$this->dt0[$i]; + $dt1[] = (int)$this->dt1[$i]; + $dt2[] = (int)$this->dt2[$i]; + $dt3[] = (int)$this->dt3[$i]; + $isbox[] = (int)$this->isbox[$i]; + } + } - $num_states = count($state); + $state = array(); + $words = unpack('N*', $in); + + $c = $this->c; $dw = $this->dw; - $dt0 = $this->dt0; - $dt1 = $this->dt1; - $dt2 = $this->dt2; - $dt3 = $this->dt3; $Nb = $this->Nb; $Nr = $this->Nr; - $c = $this->c; // addRoundKey - $i = 0; + $i = -1; foreach ($words as $word) { - $state[] = $word ^ $dw[$Nr][$i++]; + $state[] = $word ^ $dw[$Nr][++$i]; } $temp = array(); - for ($round = $Nr - 1; $round > 0; $round--) { + for ($round = $Nr - 1; $round > 0; --$round) { $i = 0; // $c[0] == 0 $j = $Nb - $c[1]; $k = $Nb - $c[2]; $l = $Nb - $c[3]; while ($i < $Nb) { - $temp[$i] = $dt0[$state[$i] & 0xFF000000] ^ - $dt1[$state[$j] & 0x00FF0000] ^ - $dt2[$state[$k] & 0x0000FF00] ^ - $dt3[$state[$l] & 0x000000FF] ^ + $temp[$i] = $dt0[$state[$i] >> 24 & 0x000000FF] ^ + $dt1[$state[$j] >> 16 & 0x000000FF] ^ + $dt2[$state[$k] >> 8 & 0x000000FF] ^ + $dt3[$state[$l] & 0x000000FF] ^ $dw[$round][$i]; - $i++; + ++$i; $j = ($j + 1) % $Nb; $k = ($k + 1) % $Nb; $l = ($l + 1) % $Nb; } - - for ($i = 0; $i < $Nb; $i++) { - $state[$i] = $temp[$i]; - } + $state = $temp; } // invShiftRows + invSubWord + addRoundKey @@ -1032,33 +1041,42 @@ class Crypt_Rijndael { $l = $Nb - $c[3]; while ($i < $Nb) { - $temp[$i] = $dw[0][$i] ^ - $this->_invSubWord(($state[$i] & 0xFF000000) | - ($state[$j] & 0x00FF0000) | - ($state[$k] & 0x0000FF00) | - ($state[$l] & 0x000000FF)); - $i++; + $word = ($state[$i] & 0xFF000000) | + ($state[$j] & 0x00FF0000) | + ($state[$k] & 0x0000FF00) | + ($state[$l] & 0x000000FF); + + $temp[$i] = $dw[0][$i] ^ ($isbox[$word & 0x000000FF] | + ($isbox[$word >> 8 & 0x000000FF] << 8) | + ($isbox[$word >> 16 & 0x000000FF] << 16) | + ($isbox[$word >> 24 & 0x000000FF] << 24)); + ++$i; $j = ($j + 1) % $Nb; $k = ($k + 1) % $Nb; $l = ($l + 1) % $Nb; } - $state = $temp; - - array_unshift($state, 'N*'); - - return call_user_func_array('pack', $state); + switch ($Nb) { + case 8: + return pack('N*', $temp[0], $temp[1], $temp[2], $temp[3], $temp[4], $temp[5], $temp[6], $temp[7]); + case 7: + return pack('N*', $temp[0], $temp[1], $temp[2], $temp[3], $temp[4], $temp[5], $temp[6]); + case 6: + return pack('N*', $temp[0], $temp[1], $temp[2], $temp[3], $temp[4], $temp[5]); + case 5: + return pack('N*', $temp[0], $temp[1], $temp[2], $temp[3], $temp[4]); + default: + return pack('N*', $temp[0], $temp[1], $temp[2], $temp[3]); + } } /** - * Setup Rijndael - * - * Validates all the variables and calculates $Nr - the number of rounds that need to be performed - and $w - the key - * key schedule. + * Setup the key (expansion) * + * @see Crypt_Base::_setupKey() * @access private */ - function _setup() + function _setupKey() { // Each number in $rcon is equal to the previous number multiplied by two in Rijndael's finite field. // See http://en.wikipedia.org/wiki/Finite_field_arithmetic#Multiplicative_inverse @@ -1071,25 +1089,15 @@ class Crypt_Rijndael { 0x7D000000, 0xFA000000, 0xEF000000, 0xC5000000, 0x91000000 ); - if (!$this->changed) { + $this->key = str_pad(substr($this->key, 0, $this->key_size), $this->key_size, "\0"); + + if (isset($this->kl['key']) && $this->key === $this->kl['key'] && $this->key_size === $this->kl['key_size'] && $this->block_size === $this->kl['block_size']) { + // already expanded return; } + $this->kl = array('key' => $this->key, 'key_size' => $this->key_size, 'block_size' => $this->block_size); - if (!$this->explicit_key_length) { - // we do >> 2, here, and not >> 5, as we do above, since strlen($this->key) tells us the number of bytes - not bits - $length = strlen($this->key) >> 2; - if ($length > 8) { - $length = 8; - } else if ($length < 4) { - $length = 4; - } - $this->Nk = $length; - $this->key_size = $length << 2; - } - - $this->key = str_pad(substr($this->key, 0, $this->key_size), $this->key_size, chr(0)); - $this->encryptIV = $this->decryptIV = $this->iv = str_pad(substr($this->iv, 0, $this->block_size), $this->block_size, chr(0)); - + $this->Nk = $this->key_size >> 2; // see Rijndael-ammended.pdf#page=44 $this->Nr = max($this->Nk, $this->Nb) + 6; @@ -1110,9 +1118,7 @@ class Crypt_Rijndael { $this->c = array(0, 1, 3, 4); } - $key = $this->key; - - $w = array_values(unpack('N*words', $key)); + $w = array_values(unpack('N*words', $this->key)); $length = $this->Nb * ($this->Nr + 1); for ($i = $this->Nk; $i < $length; $i++) { @@ -1132,12 +1138,12 @@ class Crypt_Rijndael { // convert the key schedule from a vector of $Nb * ($Nr + 1) length to a matrix with $Nr + 1 rows and $Nb columns // and generate the inverse key schedule. more specifically, - // according to (section 5.3.3), + // according to (section 5.3.3), // "The key expansion for the Inverse Cipher is defined as follows: // 1. Apply the Key Expansion. // 2. Apply InvMixColumn to all Round Keys except the first and the last one." // also, see fips-197.pdf#page=27, "5.3.5 Equivalent Inverse Cipher" - $temp = array(); + $temp = $this->w = $this->dw = array(); for ($i = $row = $col = 0; $i < $length; $i++, $col++) { if ($col == $this->Nb) { if ($row == 0) { @@ -1147,10 +1153,10 @@ class Crypt_Rijndael { $j = 0; while ($j < $this->Nb) { $dw = $this->_subWord($this->w[$row][$j]); - $temp[$j] = $this->dt0[$dw & 0xFF000000] ^ - $this->dt1[$dw & 0x00FF0000] ^ - $this->dt2[$dw & 0x0000FF00] ^ - $this->dt3[$dw & 0x000000FF]; + $temp[$j] = $this->dt0[$dw >> 24 & 0x000000FF] ^ + $this->dt1[$dw >> 16 & 0x000000FF] ^ + $this->dt2[$dw >> 8 & 0x000000FF] ^ + $this->dt3[$dw & 0x000000FF]; $j++; } $this->dw[$row] = $temp; @@ -1164,261 +1170,202 @@ class Crypt_Rijndael { $this->dw[$row] = $this->w[$row]; - $this->changed = false; + // In case of $this->use_inline_crypt === true we have to use 1-dim key arrays (both ascending) + if ($this->use_inline_crypt) { + $this->dw = array_reverse($this->dw); + $w = array_pop($this->w); + $dw = array_pop($this->dw); + foreach ($this->w as $r => $wr) { + foreach ($wr as $c => $wc) { + $w[] = $wc; + $dw[] = $this->dw[$r][$c]; + } + } + $this->w = $w; + $this->dw = $dw; + } } /** * Performs S-Box substitutions * * @access private + * @param Integer $word */ function _subWord($word) { - static $sbox0, $sbox1, $sbox2, $sbox3; + $sbox = $this->sbox; - if (empty($sbox0)) { - $sbox0 = array( - 0x63, 0x7C, 0x77, 0x7B, 0xF2, 0x6B, 0x6F, 0xC5, 0x30, 0x01, 0x67, 0x2B, 0xFE, 0xD7, 0xAB, 0x76, - 0xCA, 0x82, 0xC9, 0x7D, 0xFA, 0x59, 0x47, 0xF0, 0xAD, 0xD4, 0xA2, 0xAF, 0x9C, 0xA4, 0x72, 0xC0, - 0xB7, 0xFD, 0x93, 0x26, 0x36, 0x3F, 0xF7, 0xCC, 0x34, 0xA5, 0xE5, 0xF1, 0x71, 0xD8, 0x31, 0x15, - 0x04, 0xC7, 0x23, 0xC3, 0x18, 0x96, 0x05, 0x9A, 0x07, 0x12, 0x80, 0xE2, 0xEB, 0x27, 0xB2, 0x75, - 0x09, 0x83, 0x2C, 0x1A, 0x1B, 0x6E, 0x5A, 0xA0, 0x52, 0x3B, 0xD6, 0xB3, 0x29, 0xE3, 0x2F, 0x84, - 0x53, 0xD1, 0x00, 0xED, 0x20, 0xFC, 0xB1, 0x5B, 0x6A, 0xCB, 0xBE, 0x39, 0x4A, 0x4C, 0x58, 0xCF, - 0xD0, 0xEF, 0xAA, 0xFB, 0x43, 0x4D, 0x33, 0x85, 0x45, 0xF9, 0x02, 0x7F, 0x50, 0x3C, 0x9F, 0xA8, - 0x51, 0xA3, 0x40, 0x8F, 0x92, 0x9D, 0x38, 0xF5, 0xBC, 0xB6, 0xDA, 0x21, 0x10, 0xFF, 0xF3, 0xD2, - 0xCD, 0x0C, 0x13, 0xEC, 0x5F, 0x97, 0x44, 0x17, 0xC4, 0xA7, 0x7E, 0x3D, 0x64, 0x5D, 0x19, 0x73, - 0x60, 0x81, 0x4F, 0xDC, 0x22, 0x2A, 0x90, 0x88, 0x46, 0xEE, 0xB8, 0x14, 0xDE, 0x5E, 0x0B, 0xDB, - 0xE0, 0x32, 0x3A, 0x0A, 0x49, 0x06, 0x24, 0x5C, 0xC2, 0xD3, 0xAC, 0x62, 0x91, 0x95, 0xE4, 0x79, - 0xE7, 0xC8, 0x37, 0x6D, 0x8D, 0xD5, 0x4E, 0xA9, 0x6C, 0x56, 0xF4, 0xEA, 0x65, 0x7A, 0xAE, 0x08, - 0xBA, 0x78, 0x25, 0x2E, 0x1C, 0xA6, 0xB4, 0xC6, 0xE8, 0xDD, 0x74, 0x1F, 0x4B, 0xBD, 0x8B, 0x8A, - 0x70, 0x3E, 0xB5, 0x66, 0x48, 0x03, 0xF6, 0x0E, 0x61, 0x35, 0x57, 0xB9, 0x86, 0xC1, 0x1D, 0x9E, - 0xE1, 0xF8, 0x98, 0x11, 0x69, 0xD9, 0x8E, 0x94, 0x9B, 0x1E, 0x87, 0xE9, 0xCE, 0x55, 0x28, 0xDF, - 0x8C, 0xA1, 0x89, 0x0D, 0xBF, 0xE6, 0x42, 0x68, 0x41, 0x99, 0x2D, 0x0F, 0xB0, 0x54, 0xBB, 0x16 + return $sbox[$word & 0x000000FF] | + ($sbox[$word >> 8 & 0x000000FF] << 8) | + ($sbox[$word >> 16 & 0x000000FF] << 16) | + ($sbox[$word >> 24 & 0x000000FF] << 24); + } + + /** + * Setup the performance-optimized function for de/encrypt() + * + * @see Crypt_Base::_setupInlineCrypt() + * @access private + */ + function _setupInlineCrypt() + { + // Note: _setupInlineCrypt() will be called only if $this->changed === true + // So here we are'nt under the same heavy timing-stress as we are in _de/encryptBlock() or de/encrypt(). + // However...the here generated function- $code, stored as php callback in $this->inline_crypt, must work as fast as even possible. + + $lambda_functions =& Crypt_Rijndael::_getLambdaFunctions(); + + // The first 10 generated $lambda_functions will use the key-words hardcoded for better performance. + // For memory reason we limit those ultra-optimized functions. + // After that, we use pure (extracted) integer vars for the key-words which is faster than accessing them via array. + if (count($lambda_functions) < 10) { + $w = $this->w; + $dw = $this->dw; + $init_encrypt = ''; + $init_decrypt = ''; + } else { + for ($i = 0, $cw = count($this->w); $i < $cw; ++$i) { + $w[] = '$w[' . $i . ']'; + $dw[] = '$dw[' . $i . ']'; + } + $init_encrypt = '$w = $self->w;'; + $init_decrypt = '$dw = $self->dw;'; + } + + $code_hash = md5(str_pad("Crypt_Rijndael, {$this->mode}, {$this->block_size}, ", 32, "\0") . implode(',', $w)); + + if (!isset($lambda_functions[$code_hash])) { + $Nr = $this->Nr; + $Nb = $this->Nb; + $c = $this->c; + + // Generating encrypt code: + $init_encrypt.= ' + static $t0, $t1, $t2, $t3, $sbox; + if (!$t0) { + for ($i = 0; $i < 256; ++$i) { + $t0[$i] = (int)$self->t0[$i]; + $t1[$i] = (int)$self->t1[$i]; + $t2[$i] = (int)$self->t2[$i]; + $t3[$i] = (int)$self->t3[$i]; + $sbox[$i] = (int)$self->sbox[$i]; + } + } + '; + + $s = 'e'; + $e = 's'; + $wc = $Nb - 1; + + // Preround: addRoundKey + $encrypt_block = '$in = unpack("N*", $in);'."\n"; + for ($i = 0; $i < $Nb; ++$i) { + $encrypt_block .= '$s'.$i.' = $in['.($i + 1).'] ^ '.$w[++$wc].";\n"; + } + + // Mainrounds: shiftRows + subWord + mixColumns + addRoundKey + for ($round = 1; $round < $Nr; ++$round) { + list($s, $e) = array($e, $s); + for ($i = 0; $i < $Nb; ++$i) { + $encrypt_block.= + '$'.$e.$i.' = + $t0[($'.$s.$i .' >> 24) & 0xff] ^ + $t1[($'.$s.(($i + $c[1]) % $Nb).' >> 16) & 0xff] ^ + $t2[($'.$s.(($i + $c[2]) % $Nb).' >> 8) & 0xff] ^ + $t3[ $'.$s.(($i + $c[3]) % $Nb).' & 0xff] ^ + '.$w[++$wc].";\n"; + } + } + + // Finalround: subWord + shiftRows + addRoundKey + for ($i = 0; $i < $Nb; ++$i) { + $encrypt_block.= + '$'.$e.$i.' = + $sbox[ $'.$e.$i.' & 0xff] | + ($sbox[($'.$e.$i.' >> 8) & 0xff] << 8) | + ($sbox[($'.$e.$i.' >> 16) & 0xff] << 16) | + ($sbox[($'.$e.$i.' >> 24) & 0xff] << 24);'."\n"; + } + $encrypt_block .= '$in = pack("N*"'."\n"; + for ($i = 0; $i < $Nb; ++$i) { + $encrypt_block.= ', + ($'.$e.$i .' & 0xFF000000) ^ + ($'.$e.(($i + $c[1]) % $Nb).' & 0x00FF0000) ^ + ($'.$e.(($i + $c[2]) % $Nb).' & 0x0000FF00) ^ + ($'.$e.(($i + $c[3]) % $Nb).' & 0x000000FF) ^ + '.$w[$i]."\n"; + } + $encrypt_block .= ');'; + + // Generating decrypt code: + $init_decrypt.= ' + static $dt0, $dt1, $dt2, $dt3, $isbox; + if (!$dt0) { + for ($i = 0; $i < 256; ++$i) { + $dt0[$i] = (int)$self->dt0[$i]; + $dt1[$i] = (int)$self->dt1[$i]; + $dt2[$i] = (int)$self->dt2[$i]; + $dt3[$i] = (int)$self->dt3[$i]; + $isbox[$i] = (int)$self->isbox[$i]; + } + } + '; + + $s = 'e'; + $e = 's'; + $wc = $Nb - 1; + + // Preround: addRoundKey + $decrypt_block = '$in = unpack("N*", $in);'."\n"; + for ($i = 0; $i < $Nb; ++$i) { + $decrypt_block .= '$s'.$i.' = $in['.($i + 1).'] ^ '.$dw[++$wc].';'."\n"; + } + + // Mainrounds: shiftRows + subWord + mixColumns + addRoundKey + for ($round = 1; $round < $Nr; ++$round) { + list($s, $e) = array($e, $s); + for ($i = 0; $i < $Nb; ++$i) { + $decrypt_block.= + '$'.$e.$i.' = + $dt0[($'.$s.$i .' >> 24) & 0xff] ^ + $dt1[($'.$s.(($Nb + $i - $c[1]) % $Nb).' >> 16) & 0xff] ^ + $dt2[($'.$s.(($Nb + $i - $c[2]) % $Nb).' >> 8) & 0xff] ^ + $dt3[ $'.$s.(($Nb + $i - $c[3]) % $Nb).' & 0xff] ^ + '.$dw[++$wc].";\n"; + } + } + + // Finalround: subWord + shiftRows + addRoundKey + for ($i = 0; $i < $Nb; ++$i) { + $decrypt_block.= + '$'.$e.$i.' = + $isbox[ $'.$e.$i.' & 0xff] | + ($isbox[($'.$e.$i.' >> 8) & 0xff] << 8) | + ($isbox[($'.$e.$i.' >> 16) & 0xff] << 16) | + ($isbox[($'.$e.$i.' >> 24) & 0xff] << 24);'."\n"; + } + $decrypt_block .= '$in = pack("N*"'."\n"; + for ($i = 0; $i < $Nb; ++$i) { + $decrypt_block.= ', + ($'.$e.$i. ' & 0xFF000000) ^ + ($'.$e.(($Nb + $i - $c[1]) % $Nb).' & 0x00FF0000) ^ + ($'.$e.(($Nb + $i - $c[2]) % $Nb).' & 0x0000FF00) ^ + ($'.$e.(($Nb + $i - $c[3]) % $Nb).' & 0x000000FF) ^ + '.$dw[$i]."\n"; + } + $decrypt_block .= ');'; + + $lambda_functions[$code_hash] = $this->_createInlineCryptFunction( + array( + 'init_crypt' => '', + 'init_encrypt' => $init_encrypt, + 'init_decrypt' => $init_decrypt, + 'encrypt_block' => $encrypt_block, + 'decrypt_block' => $decrypt_block + ) ); - - $sbox1 = array(); - $sbox2 = array(); - $sbox3 = array(); - - for ($i = 0; $i < 256; $i++) { - $sbox1[$i << 8] = $sbox0[$i] << 8; - $sbox2[$i << 16] = $sbox0[$i] << 16; - $sbox3[$i << 24] = $sbox0[$i] << 24; - } } - - return $sbox0[$word & 0x000000FF] | - $sbox1[$word & 0x0000FF00] | - $sbox2[$word & 0x00FF0000] | - $sbox3[$word & 0xFF000000]; - } - - /** - * Performs inverse S-Box substitutions - * - * @access private - */ - function _invSubWord($word) - { - static $sbox0, $sbox1, $sbox2, $sbox3; - - if (empty($sbox0)) { - $sbox0 = array( - 0x52, 0x09, 0x6A, 0xD5, 0x30, 0x36, 0xA5, 0x38, 0xBF, 0x40, 0xA3, 0x9E, 0x81, 0xF3, 0xD7, 0xFB, - 0x7C, 0xE3, 0x39, 0x82, 0x9B, 0x2F, 0xFF, 0x87, 0x34, 0x8E, 0x43, 0x44, 0xC4, 0xDE, 0xE9, 0xCB, - 0x54, 0x7B, 0x94, 0x32, 0xA6, 0xC2, 0x23, 0x3D, 0xEE, 0x4C, 0x95, 0x0B, 0x42, 0xFA, 0xC3, 0x4E, - 0x08, 0x2E, 0xA1, 0x66, 0x28, 0xD9, 0x24, 0xB2, 0x76, 0x5B, 0xA2, 0x49, 0x6D, 0x8B, 0xD1, 0x25, - 0x72, 0xF8, 0xF6, 0x64, 0x86, 0x68, 0x98, 0x16, 0xD4, 0xA4, 0x5C, 0xCC, 0x5D, 0x65, 0xB6, 0x92, - 0x6C, 0x70, 0x48, 0x50, 0xFD, 0xED, 0xB9, 0xDA, 0x5E, 0x15, 0x46, 0x57, 0xA7, 0x8D, 0x9D, 0x84, - 0x90, 0xD8, 0xAB, 0x00, 0x8C, 0xBC, 0xD3, 0x0A, 0xF7, 0xE4, 0x58, 0x05, 0xB8, 0xB3, 0x45, 0x06, - 0xD0, 0x2C, 0x1E, 0x8F, 0xCA, 0x3F, 0x0F, 0x02, 0xC1, 0xAF, 0xBD, 0x03, 0x01, 0x13, 0x8A, 0x6B, - 0x3A, 0x91, 0x11, 0x41, 0x4F, 0x67, 0xDC, 0xEA, 0x97, 0xF2, 0xCF, 0xCE, 0xF0, 0xB4, 0xE6, 0x73, - 0x96, 0xAC, 0x74, 0x22, 0xE7, 0xAD, 0x35, 0x85, 0xE2, 0xF9, 0x37, 0xE8, 0x1C, 0x75, 0xDF, 0x6E, - 0x47, 0xF1, 0x1A, 0x71, 0x1D, 0x29, 0xC5, 0x89, 0x6F, 0xB7, 0x62, 0x0E, 0xAA, 0x18, 0xBE, 0x1B, - 0xFC, 0x56, 0x3E, 0x4B, 0xC6, 0xD2, 0x79, 0x20, 0x9A, 0xDB, 0xC0, 0xFE, 0x78, 0xCD, 0x5A, 0xF4, - 0x1F, 0xDD, 0xA8, 0x33, 0x88, 0x07, 0xC7, 0x31, 0xB1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xEC, 0x5F, - 0x60, 0x51, 0x7F, 0xA9, 0x19, 0xB5, 0x4A, 0x0D, 0x2D, 0xE5, 0x7A, 0x9F, 0x93, 0xC9, 0x9C, 0xEF, - 0xA0, 0xE0, 0x3B, 0x4D, 0xAE, 0x2A, 0xF5, 0xB0, 0xC8, 0xEB, 0xBB, 0x3C, 0x83, 0x53, 0x99, 0x61, - 0x17, 0x2B, 0x04, 0x7E, 0xBA, 0x77, 0xD6, 0x26, 0xE1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0C, 0x7D - ); - - $sbox1 = array(); - $sbox2 = array(); - $sbox3 = array(); - - for ($i = 0; $i < 256; $i++) { - $sbox1[$i << 8] = $sbox0[$i] << 8; - $sbox2[$i << 16] = $sbox0[$i] << 16; - $sbox3[$i << 24] = $sbox0[$i] << 24; - } - } - - return $sbox0[$word & 0x000000FF] | - $sbox1[$word & 0x0000FF00] | - $sbox2[$word & 0x00FF0000] | - $sbox3[$word & 0xFF000000]; - } - - /** - * Pad "packets". - * - * Rijndael works by encrypting between sixteen and thirty-two bytes at a time, provided that number is also a multiple - * of four. If you ever need to encrypt or decrypt something that isn't of the proper length, it becomes necessary to - * pad the input so that it is of the proper length. - * - * Padding is enabled by default. Sometimes, however, it is undesirable to pad strings. Such is the case in SSH, - * where "packets" are padded with random bytes before being encrypted. Unpad these packets and you risk stripping - * away characters that shouldn't be stripped away. (SSH knows how many bytes are added because the length is - * transmitted separately) - * - * @see Crypt_Rijndael::disablePadding() - * @access public - */ - function enablePadding() - { - $this->padding = true; - } - - /** - * Do not pad packets. - * - * @see Crypt_Rijndael::enablePadding() - * @access public - */ - function disablePadding() - { - $this->padding = false; - } - - /** - * Pads a string - * - * Pads a string using the RSA PKCS padding standards so that its length is a multiple of the blocksize. - * $block_size - (strlen($text) % $block_size) bytes are added, each of which is equal to - * chr($block_size - (strlen($text) % $block_size) - * - * If padding is disabled and $text is not a multiple of the blocksize, the string will be padded regardless - * and padding will, hence forth, be enabled. - * - * @see Crypt_Rijndael::_unpad() - * @access private - */ - function _pad($text) - { - $length = strlen($text); - - if (!$this->padding) { - if ($length % $this->block_size == 0) { - return $text; - } else { - user_error("The plaintext's length ($length) is not a multiple of the block size ({$this->block_size})", E_USER_NOTICE); - $this->padding = true; - } - } - - $pad = $this->block_size - ($length % $this->block_size); - - return str_pad($text, $length + $pad, chr($pad)); - } - - /** - * Unpads a string. - * - * If padding is enabled and the reported padding length is invalid the encryption key will be assumed to be wrong - * and false will be returned. - * - * @see Crypt_Rijndael::_pad() - * @access private - */ - function _unpad($text) - { - if (!$this->padding) { - return $text; - } - - $length = ord($text[strlen($text) - 1]); - - if (!$length || $length > $this->block_size) { - return false; - } - - return substr($text, 0, -$length); - } - - /** - * Treat consecutive "packets" as if they are a continuous buffer. - * - * Say you have a 32-byte plaintext $plaintext. Using the default behavior, the two following code snippets - * will yield different outputs: - * - * - * echo $rijndael->encrypt(substr($plaintext, 0, 16)); - * echo $rijndael->encrypt(substr($plaintext, 16, 16)); - * - * - * echo $rijndael->encrypt($plaintext); - * - * - * The solution is to enable the continuous buffer. Although this will resolve the above discrepancy, it creates - * another, as demonstrated with the following: - * - * - * $rijndael->encrypt(substr($plaintext, 0, 16)); - * echo $rijndael->decrypt($des->encrypt(substr($plaintext, 16, 16))); - * - * - * echo $rijndael->decrypt($des->encrypt(substr($plaintext, 16, 16))); - * - * - * With the continuous buffer disabled, these would yield the same output. With it enabled, they yield different - * outputs. The reason is due to the fact that the initialization vector's change after every encryption / - * decryption round when the continuous buffer is enabled. When it's disabled, they remain constant. - * - * Put another way, when the continuous buffer is enabled, the state of the Crypt_Rijndael() object changes after each - * encryption / decryption round, whereas otherwise, it'd remain constant. For this reason, it's recommended that - * continuous buffers not be used. They do offer better security and are, in fact, sometimes required (SSH uses them), - * however, they are also less intuitive and more likely to cause you problems. - * - * @see Crypt_Rijndael::disableContinuousBuffer() - * @access public - */ - function enableContinuousBuffer() - { - $this->continuousBuffer = true; - } - - /** - * Treat consecutive packets as if they are a discontinuous buffer. - * - * The default behavior. - * - * @see Crypt_Rijndael::enableContinuousBuffer() - * @access public - */ - function disableContinuousBuffer() - { - $this->continuousBuffer = false; - $this->encryptIV = $this->iv; - $this->decryptIV = $this->iv; - } - - /** - * String Shift - * - * Inspired by array_shift - * - * @param String $string - * @param optional Integer $index - * @return String - * @access private - */ - function _string_shift(&$string, $index = 1) - { - $substr = substr($string, 0, $index); - $string = substr($string, $index); - return $substr; + $this->inline_crypt = $lambda_functions[$code_hash]; } } - -// vim: ts=4:sw=4:et: -// vim6: fdl=1: \ No newline at end of file diff --git a/lam/lib/3rdParty/phpseclib/Crypt/TripleDES.php b/lam/lib/3rdParty/phpseclib/Crypt/TripleDES.php index 34432921..21318209 100644 --- a/lam/lib/3rdParty/phpseclib/Crypt/TripleDES.php +++ b/lam/lib/3rdParty/phpseclib/Crypt/TripleDES.php @@ -1,5 +1,4 @@ - * @copyright MMVII Jim Wigginton - * @license http://www.opensource.org/licenses/mit-license.html MIT License - * @version $Id$ - * @link http://phpseclib.sourceforge.net + * @category Crypt + * @package Crypt_TripleDES + * @author Jim Wigginton + * @copyright MMVII Jim Wigginton + * @license http://www.opensource.org/licenses/mit-license.html MIT License + * @link http://phpseclib.sourceforge.net */ /** * Include Crypt_DES */ -require_once('DES.php'); +if (!class_exists('Crypt_DES')) { + include_once 'DES.php'; +} /** * Encrypt / decrypt using inner chaining @@ -76,255 +76,161 @@ define('CRYPT_DES_MODE_CBC3', CRYPT_DES_MODE_CBC); /** * Pure-PHP implementation of Triple DES. * + * @package Crypt_TripleDES * @author Jim Wigginton * @version 0.1.0 * @access public - * @package Crypt_TerraDES */ -class Crypt_TripleDES { +class Crypt_TripleDES extends Crypt_DES +{ /** - * The Three Keys + * The default password key_size used by setPassword() * - * @see Crypt_TripleDES::setKey() - * @var String - * @access private - */ - var $key = "\0\0\0\0\0\0\0\0"; - - /** - * The Encryption Mode - * - * @see Crypt_TripleDES::Crypt_TripleDES() + * @see Crypt_DES::password_key_size + * @see Crypt_Base::password_key_size + * @see Crypt_Base::setPassword() * @var Integer * @access private */ - var $mode = CRYPT_DES_MODE_CBC; + var $password_key_size = 24; /** - * Continuous Buffer status + * The default salt used by setPassword() + * + * @see Crypt_Base::password_default_salt + * @see Crypt_Base::setPassword() + * @var String + * @access private + */ + var $password_default_salt = 'phpseclib'; + + /** + * The namespace used by the cipher for its constants. + * + * @see Crypt_DES::const_namespace + * @see Crypt_Base::const_namespace + * @var String + * @access private + */ + var $const_namespace = 'DES'; + + /** + * The mcrypt specific name of the cipher + * + * @see Crypt_DES::cipher_name_mcrypt + * @see Crypt_Base::cipher_name_mcrypt + * @var String + * @access private + */ + var $cipher_name_mcrypt = 'tripledes'; + + /** + * Optimizing value while CFB-encrypting + * + * @see Crypt_Base::cfb_init_len + * @var Integer + * @access private + */ + var $cfb_init_len = 750; + + /** + * max possible size of $key + * + * @see Crypt_TripleDES::setKey() + * @see Crypt_DES::setKey() + * @var String + * @access private + */ + var $key_size_max = 24; + + /** + * Internal flag whether using CRYPT_DES_MODE_3CBC or not * - * @see Crypt_TripleDES::enableContinuousBuffer() * @var Boolean * @access private */ - var $continuousBuffer = false; - - /** - * Padding status - * - * @see Crypt_TripleDES::enablePadding() - * @var Boolean - * @access private - */ - var $padding = true; - - /** - * The Initialization Vector - * - * @see Crypt_TripleDES::setIV() - * @var String - * @access private - */ - var $iv = "\0\0\0\0\0\0\0\0"; - - /** - * A "sliding" Initialization Vector - * - * @see Crypt_TripleDES::enableContinuousBuffer() - * @var String - * @access private - */ - var $encryptIV = "\0\0\0\0\0\0\0\0"; - - /** - * A "sliding" Initialization Vector - * - * @see Crypt_TripleDES::enableContinuousBuffer() - * @var String - * @access private - */ - var $decryptIV = "\0\0\0\0\0\0\0\0"; + var $mode_3cbc; /** * The Crypt_DES objects * + * Used only if $mode_3cbc === true + * * @var Array * @access private */ var $des; - /** - * mcrypt resource for encryption - * - * The mcrypt resource can be recreated every time something needs to be created or it can be created just once. - * Since mcrypt operates in continuous mode, by default, it'll need to be recreated when in non-continuous mode. - * - * @see Crypt_TripleDES::encrypt() - * @var String - * @access private - */ - var $enmcrypt; - - /** - * mcrypt resource for decryption - * - * The mcrypt resource can be recreated every time something needs to be created or it can be created just once. - * Since mcrypt operates in continuous mode, by default, it'll need to be recreated when in non-continuous mode. - * - * @see Crypt_TripleDES::decrypt() - * @var String - * @access private - */ - var $demcrypt; - - /** - * Does the enmcrypt resource need to be (re)initialized? - * - * @see Crypt_TripleDES::setKey() - * @see Crypt_TripleDES::setIV() - * @var Boolean - * @access private - */ - var $enchanged = true; - - /** - * Does the demcrypt resource need to be (re)initialized? - * - * @see Crypt_TripleDES::setKey() - * @see Crypt_TripleDES::setIV() - * @var Boolean - * @access private - */ - var $dechanged = true; - - /** - * Is the mode one that is paddable? - * - * @see Crypt_TripleDES::Crypt_TripleDES() - * @var Boolean - * @access private - */ - var $paddable = false; - - /** - * Encryption buffer for CTR, OFB and CFB modes - * - * @see Crypt_TripleDES::encrypt() - * @var String - * @access private - */ - var $enbuffer = ''; - - /** - * Decryption buffer for CTR, OFB and CFB modes - * - * @see Crypt_TripleDES::decrypt() - * @var String - * @access private - */ - var $debuffer = ''; - - /** - * mcrypt resource for CFB mode - * - * @see Crypt_TripleDES::encrypt() - * @see Crypt_TripleDES::decrypt() - * @var String - * @access private - */ - var $ecb; - /** * Default Constructor. * - * Determines whether or not the mcrypt extension should be used. $mode should only, at present, be - * CRYPT_DES_MODE_ECB or CRYPT_DES_MODE_CBC. If not explictly set, CRYPT_DES_MODE_CBC will be used. + * Determines whether or not the mcrypt extension should be used. * + * $mode could be: + * + * - CRYPT_DES_MODE_ECB + * + * - CRYPT_DES_MODE_CBC + * + * - CRYPT_DES_MODE_CTR + * + * - CRYPT_DES_MODE_CFB + * + * - CRYPT_DES_MODE_OFB + * + * - CRYPT_DES_MODE_3CBC + * + * If not explictly set, CRYPT_DES_MODE_CBC will be used. + * + * @see Crypt_DES::Crypt_DES() + * @see Crypt_Base::Crypt_Base() * @param optional Integer $mode - * @return Crypt_TripleDES * @access public */ function Crypt_TripleDES($mode = CRYPT_DES_MODE_CBC) { - if ( !defined('CRYPT_DES_MODE') ) { - switch (true) { - case extension_loaded('mcrypt'): - // i'd check to see if des was supported, by doing in_array('des', mcrypt_list_algorithms('')), - // but since that can be changed after the object has been created, there doesn't seem to be - // a lot of point... - define('CRYPT_DES_MODE', CRYPT_DES_MODE_MCRYPT); - break; - default: - define('CRYPT_DES_MODE', CRYPT_DES_MODE_INTERNAL); - } - } + switch ($mode) { + // In case of CRYPT_DES_MODE_3CBC, we init as CRYPT_DES_MODE_CBC + // and additional flag us internally as 3CBC + case CRYPT_DES_MODE_3CBC: + parent::Crypt_DES(CRYPT_DES_MODE_CBC); + $this->mode_3cbc = true; - if ( $mode == CRYPT_DES_MODE_3CBC ) { - $this->mode = CRYPT_DES_MODE_3CBC; - $this->des = array( - new Crypt_DES(CRYPT_DES_MODE_CBC), - new Crypt_DES(CRYPT_DES_MODE_CBC), - new Crypt_DES(CRYPT_DES_MODE_CBC) - ); - - // we're going to be doing the padding, ourselves, so disable it in the Crypt_DES objects - $this->des[0]->disablePadding(); - $this->des[1]->disablePadding(); - $this->des[2]->disablePadding(); - - return; - } - - switch ( CRYPT_DES_MODE ) { - case CRYPT_DES_MODE_MCRYPT: - switch ($mode) { - case CRYPT_DES_MODE_ECB: - $this->paddable = true; - $this->mode = MCRYPT_MODE_ECB; - break; - case CRYPT_DES_MODE_CTR: - $this->mode = 'ctr'; - break; - case CRYPT_DES_MODE_CFB: - $this->mode = 'ncfb'; - break; - case CRYPT_DES_MODE_OFB: - $this->mode = MCRYPT_MODE_NOFB; - break; - case CRYPT_DES_MODE_CBC: - default: - $this->paddable = true; - $this->mode = MCRYPT_MODE_CBC; - } - - break; - default: + // This three $des'es will do the 3CBC work (if $key > 64bits) $this->des = array( - new Crypt_DES(CRYPT_DES_MODE_ECB), - new Crypt_DES(CRYPT_DES_MODE_ECB), - new Crypt_DES(CRYPT_DES_MODE_ECB) + new Crypt_DES(CRYPT_DES_MODE_CBC), + new Crypt_DES(CRYPT_DES_MODE_CBC), + new Crypt_DES(CRYPT_DES_MODE_CBC), ); - + // we're going to be doing the padding, ourselves, so disable it in the Crypt_DES objects $this->des[0]->disablePadding(); $this->des[1]->disablePadding(); $this->des[2]->disablePadding(); + break; + // If not 3CBC, we init as usual + default: + parent::Crypt_DES($mode); + } + } - switch ($mode) { - case CRYPT_DES_MODE_ECB: - case CRYPT_DES_MODE_CBC: - $this->paddable = true; - $this->mode = $mode; - break; - case CRYPT_DES_MODE_CTR: - case CRYPT_DES_MODE_CFB: - case CRYPT_DES_MODE_OFB: - $this->mode = $mode; - break; - default: - $this->paddable = true; - $this->mode = CRYPT_DES_MODE_CBC; - } + /** + * Sets the initialization vector. (optional) + * + * SetIV is not required when CRYPT_DES_MODE_ECB is being used. If not explictly set, it'll be assumed + * to be all zero's. + * + * @see Crypt_Base::setIV() + * @access public + * @param String $iv + */ + function setIV($iv) + { + parent::setIV($iv); + if ($this->mode_3cbc) { + $this->des[0]->setIV($iv); + $this->des[1]->setIV($iv); + $this->des[2]->setIV($iv); } } @@ -336,504 +242,77 @@ class Crypt_TripleDES { * * DES also requires that every eighth bit be a parity bit, however, we'll ignore that. * - * If the key is not explicitly set, it'll be assumed to be all zero's. + * If the key is not explicitly set, it'll be assumed to be all null bytes. * * @access public + * @see Crypt_DES::setKey() + * @see Crypt_Base::setKey() * @param String $key */ function setKey($key) { $length = strlen($key); if ($length > 8) { - $key = str_pad($key, 24, chr(0)); + $key = str_pad(substr($key, 0, 24), 24, chr(0)); // if $key is between 64 and 128-bits, use the first 64-bits as the last, per this: // http://php.net/function.mcrypt-encrypt#47973 //$key = $length <= 16 ? substr_replace($key, substr($key, 0, 8), 16) : substr($key, 0, 24); } else { $key = str_pad($key, 8, chr(0)); } - $this->key = $key; - switch (true) { - case CRYPT_DES_MODE == CRYPT_DES_MODE_INTERNAL: - case $this->mode == CRYPT_DES_MODE_3CBC: - $this->des[0]->setKey(substr($key, 0, 8)); - $this->des[1]->setKey(substr($key, 8, 8)); - $this->des[2]->setKey(substr($key, 16, 8)); - } - $this->enchanged = $this->dechanged = true; - } + parent::setKey($key); - /** - * Sets the initialization vector. (optional) - * - * SetIV is not required when CRYPT_DES_MODE_ECB is being used. If not explictly set, it'll be assumed - * to be all zero's. - * - * @access public - * @param String $iv - */ - function setIV($iv) - { - $this->encryptIV = $this->decryptIV = $this->iv = str_pad(substr($iv, 0, 8), 8, chr(0)); - if ($this->mode == CRYPT_DES_MODE_3CBC) { - $this->des[0]->setIV($iv); - $this->des[1]->setIV($iv); - $this->des[2]->setIV($iv); + // And in case of CRYPT_DES_MODE_3CBC: + // if key <= 64bits we not need the 3 $des to work, + // because we will then act as regular DES-CBC with just a <= 64bit key. + // So only if the key > 64bits (> 8 bytes) we will call setKey() for the 3 $des. + if ($this->mode_3cbc && $length > 8) { + $this->des[0]->setKey(substr($key, 0, 8)); + $this->des[1]->setKey(substr($key, 8, 8)); + $this->des[2]->setKey(substr($key, 16, 8)); } - $this->enchanged = $this->dechanged = true; - } - - /** - * Generate CTR XOR encryption key - * - * Encrypt the output of this and XOR it against the ciphertext / plaintext to get the - * plaintext / ciphertext in CTR mode. - * - * @see Crypt_TripleDES::decrypt() - * @see Crypt_TripleDES::encrypt() - * @access private - * @param Integer $length - * @param String $iv - */ - function _generate_xor($length, &$iv) - { - $xor = ''; - $num_blocks = ($length + 7) >> 3; - for ($i = 0; $i < $num_blocks; $i++) { - $xor.= $iv; - for ($j = 4; $j <= 8; $j+=4) { - $temp = substr($iv, -$j, 4); - switch ($temp) { - case "\xFF\xFF\xFF\xFF": - $iv = substr_replace($iv, "\x00\x00\x00\x00", -$j, 4); - break; - case "\x7F\xFF\xFF\xFF": - $iv = substr_replace($iv, "\x80\x00\x00\x00", -$j, 4); - break 2; - default: - extract(unpack('Ncount', $temp)); - $iv = substr_replace($iv, pack('N', $count + 1), -$j, 4); - break 2; - } - } - } - - return $xor; } /** * Encrypts a message. * + * @see Crypt_Base::encrypt() * @access public * @param String $plaintext + * @return String $cipertext */ function encrypt($plaintext) { - if ($this->paddable) { - $plaintext = $this->_pad($plaintext); - } + // parent::en/decrypt() is able to do all the work for all modes and keylengths, + // except for: CRYPT_DES_MODE_3CBC (inner chaining CBC) with a key > 64bits // if the key is smaller then 8, do what we'd normally do - if ($this->mode == CRYPT_DES_MODE_3CBC && strlen($this->key) > 8) { - $ciphertext = $this->des[2]->encrypt($this->des[1]->decrypt($this->des[0]->encrypt($plaintext))); - - return $ciphertext; + if ($this->mode_3cbc && strlen($this->key) > 8) { + return $this->des[2]->encrypt( + $this->des[1]->decrypt( + $this->des[0]->encrypt($this->_pad($plaintext)))); } - if ( CRYPT_DES_MODE == CRYPT_DES_MODE_MCRYPT ) { - if ($this->enchanged) { - if (!isset($this->enmcrypt)) { - $this->enmcrypt = mcrypt_module_open(MCRYPT_3DES, '', $this->mode, ''); - } - mcrypt_generic_init($this->enmcrypt, $this->key, $this->encryptIV); - if ($this->mode != 'ncfb') { - $this->enchanged = false; - } - } - - if ($this->mode != 'ncfb') { - $ciphertext = mcrypt_generic($this->enmcrypt, $plaintext); - } else { - if ($this->enchanged) { - $this->ecb = mcrypt_module_open(MCRYPT_3DES, '', MCRYPT_MODE_ECB, ''); - mcrypt_generic_init($this->ecb, $this->key, "\0\0\0\0\0\0\0\0"); - $this->enchanged = false; - } - - if (strlen($this->enbuffer)) { - $ciphertext = $plaintext ^ substr($this->encryptIV, strlen($this->enbuffer)); - $this->enbuffer.= $ciphertext; - if (strlen($this->enbuffer) == 8) { - $this->encryptIV = $this->enbuffer; - $this->enbuffer = ''; - mcrypt_generic_init($this->enmcrypt, $this->key, $this->encryptIV); - } - $plaintext = substr($plaintext, strlen($ciphertext)); - } else { - $ciphertext = ''; - } - - $last_pos = strlen($plaintext) & 0xFFFFFFF8; - $ciphertext.= $last_pos ? mcrypt_generic($this->enmcrypt, substr($plaintext, 0, $last_pos)) : ''; - - if (strlen($plaintext) & 0x7) { - if (strlen($ciphertext)) { - $this->encryptIV = substr($ciphertext, -8); - } - $this->encryptIV = mcrypt_generic($this->ecb, $this->encryptIV); - $this->enbuffer = substr($plaintext, $last_pos) ^ $this->encryptIV; - $ciphertext.= $this->enbuffer; - } - } - - if (!$this->continuousBuffer) { - mcrypt_generic_init($this->enmcrypt, $this->key, $this->encryptIV); - } - - return $ciphertext; - } - - if (strlen($this->key) <= 8) { - $this->des[0]->mode = $this->mode; - - return $this->des[0]->encrypt($plaintext); - } - - $des = $this->des; - - $buffer = &$this->enbuffer; - $continuousBuffer = $this->continuousBuffer; - $ciphertext = ''; - switch ($this->mode) { - case CRYPT_DES_MODE_ECB: - for ($i = 0; $i < strlen($plaintext); $i+=8) { - $block = substr($plaintext, $i, 8); - // all of these _processBlock calls could, in theory, be put in a function - say Crypt_TripleDES::_ede_encrypt() or something. - // only problem with that: it would slow encryption and decryption down. $this->des would have to be called every time that - // function is called, instead of once for the whole string of text that's being encrypted, which would, in turn, make - // encryption and decryption take more time, per this: - // - // http://blog.libssh2.org/index.php?/archives/21-Compiled-Variables.html - $block = $des[0]->_processBlock($block, CRYPT_DES_ENCRYPT); - $block = $des[1]->_processBlock($block, CRYPT_DES_DECRYPT); - $block = $des[2]->_processBlock($block, CRYPT_DES_ENCRYPT); - $ciphertext.= $block; - } - break; - case CRYPT_DES_MODE_CBC: - $xor = $this->encryptIV; - for ($i = 0; $i < strlen($plaintext); $i+=8) { - $block = substr($plaintext, $i, 8) ^ $xor; - $block = $des[0]->_processBlock($block, CRYPT_DES_ENCRYPT); - $block = $des[1]->_processBlock($block, CRYPT_DES_DECRYPT); - $block = $des[2]->_processBlock($block, CRYPT_DES_ENCRYPT); - $xor = $block; - $ciphertext.= $block; - } - if ($this->continuousBuffer) { - $this->encryptIV = $xor; - } - break; - case CRYPT_DES_MODE_CTR: - $xor = $this->encryptIV; - if (strlen($buffer)) { - for ($i = 0; $i < strlen($plaintext); $i+=8) { - $block = substr($plaintext, $i, 8); - $key = $this->_generate_xor(8, $xor); - $key = $des[0]->_processBlock($key, CRYPT_DES_ENCRYPT); - $key = $des[1]->_processBlock($key, CRYPT_DES_DECRYPT); - $key = $des[2]->_processBlock($key, CRYPT_DES_ENCRYPT); - $buffer.= $key; - $key = $this->_string_shift($buffer, 8); - $ciphertext.= $block ^ $key; - } - } else { - for ($i = 0; $i < strlen($plaintext); $i+=8) { - $block = substr($plaintext, $i, 8); - $key = $this->_generate_xor(8, $xor); - $key = $des[0]->_processBlock($key, CRYPT_DES_ENCRYPT); - $key = $des[1]->_processBlock($key, CRYPT_DES_DECRYPT); - $key = $des[2]->_processBlock($key, CRYPT_DES_ENCRYPT); - $ciphertext.= $block ^ $key; - } - } - if ($this->continuousBuffer) { - $this->encryptIV = $xor; - if ($start = strlen($plaintext) & 7) { - $buffer = substr($key, $start) . $buffer; - } - } - break; - case CRYPT_DES_MODE_CFB: - if (!empty($buffer['xor'])) { - $ciphertext = $plaintext ^ $buffer['xor']; - $iv = $buffer['encrypted'] . $ciphertext; - $start = strlen($ciphertext); - $buffer['encrypted'].= $ciphertext; - $buffer['xor'] = substr($buffer['xor'], strlen($ciphertext)); - } else { - $ciphertext = ''; - $iv = $this->encryptIV; - $start = 0; - } - - for ($i = $start; $i < strlen($plaintext); $i+=8) { - $block = substr($plaintext, $i, 8); - $iv = $des[0]->_processBlock($iv, CRYPT_DES_ENCRYPT); - $iv = $des[1]->_processBlock($iv, CRYPT_DES_DECRYPT); - $xor= $des[2]->_processBlock($iv, CRYPT_DES_ENCRYPT); - - $iv = $block ^ $xor; - if ($continuousBuffer && strlen($iv) != 8) { - $buffer = array( - 'encrypted' => $iv, - 'xor' => substr($xor, strlen($iv)) - ); - } - $ciphertext.= $iv; - } - - if ($this->continuousBuffer) { - $this->encryptIV = $iv; - } - break; - case CRYPT_DES_MODE_OFB: - $xor = $this->encryptIV; - if (strlen($buffer)) { - for ($i = 0; $i < strlen($plaintext); $i+=8) { - $xor = $des[0]->_processBlock($xor, CRYPT_DES_ENCRYPT); - $xor = $des[1]->_processBlock($xor, CRYPT_DES_DECRYPT); - $xor = $des[2]->_processBlock($xor, CRYPT_DES_ENCRYPT); - $buffer.= $xor; - $key = $this->_string_shift($buffer, 8); - $ciphertext.= substr($plaintext, $i, 8) ^ $key; - } - } else { - for ($i = 0; $i < strlen($plaintext); $i+=8) { - $xor = $des[0]->_processBlock($xor, CRYPT_DES_ENCRYPT); - $xor = $des[1]->_processBlock($xor, CRYPT_DES_DECRYPT); - $xor = $des[2]->_processBlock($xor, CRYPT_DES_ENCRYPT); - $ciphertext.= substr($plaintext, $i, 8) ^ $xor; - } - $key = $xor; - } - if ($this->continuousBuffer) { - $this->encryptIV = $xor; - if ($start = strlen($plaintext) & 7) { - $buffer = substr($key, $start) . $buffer; - } - } - } - - return $ciphertext; + return parent::encrypt($plaintext); } /** * Decrypts a message. * + * @see Crypt_Base::decrypt() * @access public * @param String $ciphertext + * @return String $plaintext */ function decrypt($ciphertext) { - if ($this->mode == CRYPT_DES_MODE_3CBC && strlen($this->key) > 8) { - $plaintext = $this->des[0]->decrypt($this->des[1]->encrypt($this->des[2]->decrypt($ciphertext))); - - return $this->_unpad($plaintext); + if ($this->mode_3cbc && strlen($this->key) > 8) { + return $this->_unpad($this->des[0]->decrypt( + $this->des[1]->encrypt( + $this->des[2]->decrypt(str_pad($ciphertext, (strlen($ciphertext) + 7) & 0xFFFFFFF8, "\0"))))); } - if ($this->paddable) { - // we pad with chr(0) since that's what mcrypt_generic does. to quote from http://php.net/function.mcrypt-generic : - // "The data is padded with "\0" to make sure the length of the data is n * blocksize." - $ciphertext = str_pad($ciphertext, (strlen($ciphertext) + 7) & 0xFFFFFFF8, chr(0)); - } - - if ( CRYPT_DES_MODE == CRYPT_DES_MODE_MCRYPT ) { - if ($this->dechanged) { - if (!isset($this->demcrypt)) { - $this->demcrypt = mcrypt_module_open(MCRYPT_3DES, '', $this->mode, ''); - } - mcrypt_generic_init($this->demcrypt, $this->key, $this->decryptIV); - if ($this->mode != 'ncfb') { - $this->dechanged = false; - } - } - - if ($this->mode != 'ncfb') { - $plaintext = mdecrypt_generic($this->demcrypt, $ciphertext); - } else { - if ($this->dechanged) { - $this->ecb = mcrypt_module_open(MCRYPT_3DES, '', MCRYPT_MODE_ECB, ''); - mcrypt_generic_init($this->ecb, $this->key, "\0\0\0\0\0\0\0\0"); - $this->dechanged = false; - } - - if (strlen($this->debuffer)) { - $plaintext = $ciphertext ^ substr($this->decryptIV, strlen($this->debuffer)); - - $this->debuffer.= substr($ciphertext, 0, strlen($plaintext)); - if (strlen($this->debuffer) == 8) { - $this->decryptIV = $this->debuffer; - $this->debuffer = ''; - mcrypt_generic_init($this->demcrypt, $this->key, $this->decryptIV); - } - $ciphertext = substr($ciphertext, strlen($plaintext)); - } else { - $plaintext = ''; - } - - $last_pos = strlen($ciphertext) & 0xFFFFFFF8; - $plaintext.= $last_pos ? mdecrypt_generic($this->demcrypt, substr($ciphertext, 0, $last_pos)) : ''; - - if (strlen($ciphertext) & 0x7) { - if (strlen($plaintext)) { - $this->decryptIV = substr($ciphertext, $last_pos - 8, 8); - } - $this->decryptIV = mcrypt_generic($this->ecb, $this->decryptIV); - $this->debuffer = substr($ciphertext, $last_pos); - $plaintext.= $this->debuffer ^ $this->decryptIV; - } - - return $plaintext; - } - - if (!$this->continuousBuffer) { - mcrypt_generic_init($this->demcrypt, $this->key, $this->decryptIV); - } - - return $this->paddable ? $this->_unpad($plaintext) : $plaintext; - } - - if (strlen($this->key) <= 8) { - $this->des[0]->mode = $this->mode; - $plaintext = $this->des[0]->decrypt($ciphertext); - return $this->paddable ? $this->_unpad($plaintext) : $plaintext; - } - - $des = $this->des; - - $buffer = &$this->enbuffer; - $continuousBuffer = $this->continuousBuffer; - $plaintext = ''; - switch ($this->mode) { - case CRYPT_DES_MODE_ECB: - for ($i = 0; $i < strlen($ciphertext); $i+=8) { - $block = substr($ciphertext, $i, 8); - $block = $des[2]->_processBlock($block, CRYPT_DES_DECRYPT); - $block = $des[1]->_processBlock($block, CRYPT_DES_ENCRYPT); - $block = $des[0]->_processBlock($block, CRYPT_DES_DECRYPT); - $plaintext.= $block; - } - break; - case CRYPT_DES_MODE_CBC: - $xor = $this->decryptIV; - for ($i = 0; $i < strlen($ciphertext); $i+=8) { - $orig = $block = substr($ciphertext, $i, 8); - $block = $des[2]->_processBlock($block, CRYPT_DES_DECRYPT); - $block = $des[1]->_processBlock($block, CRYPT_DES_ENCRYPT); - $block = $des[0]->_processBlock($block, CRYPT_DES_DECRYPT); - $plaintext.= $block ^ $xor; - $xor = $orig; - } - if ($this->continuousBuffer) { - $this->decryptIV = $xor; - } - break; - case CRYPT_DES_MODE_CTR: - $xor = $this->decryptIV; - if (strlen($buffer)) { - for ($i = 0; $i < strlen($ciphertext); $i+=8) { - $block = substr($ciphertext, $i, 8); - $key = $this->_generate_xor(8, $xor); - $key = $des[0]->_processBlock($key, CRYPT_DES_ENCRYPT); - $key = $des[1]->_processBlock($key, CRYPT_DES_DECRYPT); - $key = $des[2]->_processBlock($key, CRYPT_DES_ENCRYPT); - $buffer.= $key; - $key = $this->_string_shift($buffer, 8); - $plaintext.= $block ^ $key; - } - } else { - for ($i = 0; $i < strlen($ciphertext); $i+=8) { - $block = substr($ciphertext, $i, 8); - $key = $this->_generate_xor(8, $xor); - $key = $des[0]->_processBlock($key, CRYPT_DES_ENCRYPT); - $key = $des[1]->_processBlock($key, CRYPT_DES_DECRYPT); - $key = $des[2]->_processBlock($key, CRYPT_DES_ENCRYPT); - $plaintext.= $block ^ $key; - } - } - if ($this->continuousBuffer) { - $this->decryptIV = $xor; - if ($start = strlen($plaintext) & 7) { - $buffer = substr($key, $start) . $buffer; - } - } - break; - case CRYPT_DES_MODE_CFB: - if (!empty($buffer['ciphertext'])) { - $plaintext = $ciphertext ^ substr($this->decryptIV, strlen($buffer['ciphertext'])); - $buffer['ciphertext'].= substr($ciphertext, 0, strlen($plaintext)); - if (strlen($buffer['ciphertext']) == 8) { - $xor = $des[0]->_processBlock($buffer['ciphertext'], CRYPT_DES_ENCRYPT); - $xor = $des[1]->_processBlock($xor, CRYPT_DES_DECRYPT); - $xor = $des[2]->_processBlock($xor, CRYPT_DES_ENCRYPT); - $buffer['ciphertext'] = ''; - } - $start = strlen($plaintext); - $block = $this->decryptIV; - } else { - $plaintext = ''; - $xor = $des[0]->_processBlock($this->decryptIV, CRYPT_DES_ENCRYPT); - $xor = $des[1]->_processBlock($xor, CRYPT_DES_DECRYPT); - $xor = $des[2]->_processBlock($xor, CRYPT_DES_ENCRYPT); - $start = 0; - } - - for ($i = $start; $i < strlen($ciphertext); $i+=8) { - $block = substr($ciphertext, $i, 8); - $plaintext.= $block ^ $xor; - if ($continuousBuffer && strlen($block) != 8) { - $buffer['ciphertext'].= $block; - $block = $xor; - } else if (strlen($block) == 8) { - $xor = $des[0]->_processBlock($block, CRYPT_DES_ENCRYPT); - $xor = $des[1]->_processBlock($xor, CRYPT_DES_DECRYPT); - $xor = $des[2]->_processBlock($xor, CRYPT_DES_ENCRYPT); - } - } - if ($this->continuousBuffer) { - $this->decryptIV = $block; - } - break; - case CRYPT_DES_MODE_OFB: - $xor = $this->decryptIV; - if (strlen($buffer)) { - for ($i = 0; $i < strlen($ciphertext); $i+=8) { - $xor = $des[0]->_processBlock($xor, CRYPT_DES_ENCRYPT); - $xor = $des[1]->_processBlock($xor, CRYPT_DES_DECRYPT); - $xor = $des[2]->_processBlock($xor, CRYPT_DES_ENCRYPT); - $buffer.= $xor; - $key = $this->_string_shift($buffer, 8); - $plaintext.= substr($ciphertext, $i, 8) ^ $key; - } - } else { - for ($i = 0; $i < strlen($ciphertext); $i+=8) { - $xor = $des[0]->_processBlock($xor, CRYPT_DES_ENCRYPT); - $xor = $des[1]->_processBlock($xor, CRYPT_DES_DECRYPT); - $xor = $des[2]->_processBlock($xor, CRYPT_DES_ENCRYPT); - $plaintext.= substr($ciphertext, $i, 8) ^ $xor; - } - $key = $xor; - } - if ($this->continuousBuffer) { - $this->decryptIV = $xor; - if ($start = strlen($ciphertext) & 7) { - $buffer = substr($key, $start) . $buffer; - } - } - } - - return $this->paddable ? $this->_unpad($plaintext) : $plaintext; + return parent::decrypt($ciphertext); } /** @@ -870,13 +349,14 @@ class Crypt_TripleDES { * continuous buffers not be used. They do offer better security and are, in fact, sometimes required (SSH uses them), * however, they are also less intuitive and more likely to cause you problems. * + * @see Crypt_Base::enableContinuousBuffer() * @see Crypt_TripleDES::disableContinuousBuffer() * @access public */ function enableContinuousBuffer() { - $this->continuousBuffer = true; - if ($this->mode == CRYPT_DES_MODE_3CBC) { + parent::enableContinuousBuffer(); + if ($this->mode_3cbc) { $this->des[0]->enableContinuousBuffer(); $this->des[1]->enableContinuousBuffer(); $this->des[2]->enableContinuousBuffer(); @@ -888,16 +368,14 @@ class Crypt_TripleDES { * * The default behavior. * + * @see Crypt_Base::disableContinuousBuffer() * @see Crypt_TripleDES::enableContinuousBuffer() * @access public */ function disableContinuousBuffer() { - $this->continuousBuffer = false; - $this->encryptIV = $this->iv; - $this->decryptIV = $this->iv; - - if ($this->mode == CRYPT_DES_MODE_3CBC) { + parent::disableContinuousBuffer(); + if ($this->mode_3cbc) { $this->des[0]->disableContinuousBuffer(); $this->des[1]->disableContinuousBuffer(); $this->des[2]->disableContinuousBuffer(); @@ -905,105 +383,37 @@ class Crypt_TripleDES { } /** - * Pad "packets". + * Creates the key schedule * - * DES works by encrypting eight bytes at a time. If you ever need to encrypt or decrypt something that's not - * a multiple of eight, it becomes necessary to pad the input so that it's length is a multiple of eight. - * - * Padding is enabled by default. Sometimes, however, it is undesirable to pad strings. Such is the case in SSH1, - * where "packets" are padded with random bytes before being encrypted. Unpad these packets and you risk stripping - * away characters that shouldn't be stripped away. (SSH knows how many bytes are added because the length is - * transmitted separately) - * - * @see Crypt_TripleDES::disablePadding() - * @access public - */ - function enablePadding() - { - $this->padding = true; - } - - /** - * Do not pad packets. - * - * @see Crypt_TripleDES::enablePadding() - * @access public - */ - function disablePadding() - { - $this->padding = false; - } - - /** - * Pads a string - * - * Pads a string using the RSA PKCS padding standards so that its length is a multiple of the blocksize (8). - * 8 - (strlen($text) & 7) bytes are added, each of which is equal to chr(8 - (strlen($text) & 7) - * - * If padding is disabled and $text is not a multiple of the blocksize, the string will be padded regardless - * and padding will, hence forth, be enabled. - * - * @see Crypt_TripleDES::_unpad() + * @see Crypt_DES::_setupKey() + * @see Crypt_Base::_setupKey() * @access private */ - function _pad($text) + function _setupKey() { - $length = strlen($text); + switch (true) { + // if $key <= 64bits we configure our internal pure-php cipher engine + // to act as regular [1]DES, not as 3DES. mcrypt.so::tripledes does the same. + case strlen($this->key) <= 8: + $this->des_rounds = 1; + break; - if (!$this->padding) { - if (($length & 7) == 0) { - return $text; - } else { - user_error("The plaintext's length ($length) is not a multiple of the block size (8)", E_USER_NOTICE); - $this->padding = true; - } + // otherwise, if $key > 64bits, we configure our engine to work as 3DES. + default: + $this->des_rounds = 3; + + // (only) if 3CBC is used we have, of course, to setup the $des[0-2] keys also separately. + if ($this->mode_3cbc) { + $this->des[0]->_setupKey(); + $this->des[1]->_setupKey(); + $this->des[2]->_setupKey(); + + // because $des[0-2] will, now, do all the work we can return here + // not need unnecessary stress parent::_setupKey() with our, now unused, $key. + return; + } } - - $pad = 8 - ($length & 7); - return str_pad($text, $length + $pad, chr($pad)); - } - - /** - * Unpads a string - * - * If padding is enabled and the reported padding length is invalid the encryption key will be assumed to be wrong - * and false will be returned. - * - * @see Crypt_TripleDES::_pad() - * @access private - */ - function _unpad($text) - { - if (!$this->padding) { - return $text; - } - - $length = ord($text[strlen($text) - 1]); - - if (!$length || $length > 8) { - return false; - } - - return substr($text, 0, -$length); - } - - /** - * String Shift - * - * Inspired by array_shift - * - * @param String $string - * @param optional Integer $index - * @return String - * @access private - */ - function _string_shift(&$string, $index = 1) - { - $substr = substr($string, 0, $index); - $string = substr($string, $index); - return $substr; + // setup our key + parent::_setupKey(); } } - -// vim: ts=4:sw=4:et: -// vim6: fdl=1: \ No newline at end of file diff --git a/lam/lib/3rdParty/phpseclib/Crypt/Twofish.php b/lam/lib/3rdParty/phpseclib/Crypt/Twofish.php new file mode 100644 index 00000000..cf950832 --- /dev/null +++ b/lam/lib/3rdParty/phpseclib/Crypt/Twofish.php @@ -0,0 +1,921 @@ + + * setKey('12345678901234567890123456789012'); + * + * $plaintext = str_repeat('a', 1024); + * + * echo $twofish->decrypt($twofish->encrypt($plaintext)); + * ?> + * + * + * LICENSE: Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + * @category Crypt + * @package Crypt_Twofish + * @author Jim Wigginton + * @author Hans-Juergen Petrich + * @copyright MMVII Jim Wigginton + * @license http://www.opensource.org/licenses/mit-license.html MIT License + * @version 1.0 + * @link http://phpseclib.sourceforge.net + */ + +/** + * Include Crypt_Base + * + * Base cipher class + */ +if (!class_exists('Crypt_Base')) { + include_once 'Base.php'; +} + +/**#@+ + * @access public + * @see Crypt_Twofish::encrypt() + * @see Crypt_Twofish::decrypt() + */ +/** + * Encrypt / decrypt using the Counter mode. + * + * Set to -1 since that's what Crypt/Random.php uses to index the CTR mode. + * + * @link http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation#Counter_.28CTR.29 + */ +define('CRYPT_TWOFISH_MODE_CTR', CRYPT_MODE_CTR); +/** + * Encrypt / decrypt using the Electronic Code Book mode. + * + * @link http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation#Electronic_codebook_.28ECB.29 + */ +define('CRYPT_TWOFISH_MODE_ECB', CRYPT_MODE_ECB); +/** + * Encrypt / decrypt using the Code Book Chaining mode. + * + * @link http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation#Cipher-block_chaining_.28CBC.29 + */ +define('CRYPT_TWOFISH_MODE_CBC', CRYPT_MODE_CBC); +/** + * Encrypt / decrypt using the Cipher Feedback mode. + * + * @link http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation#Cipher_feedback_.28CFB.29 + */ +define('CRYPT_TWOFISH_MODE_CFB', CRYPT_MODE_CFB); +/** + * Encrypt / decrypt using the Cipher Feedback mode. + * + * @link http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation#Output_feedback_.28OFB.29 + */ +define('CRYPT_TWOFISH_MODE_OFB', CRYPT_MODE_OFB); +/**#@-*/ + +/**#@+ + * @access private + * @see Crypt_Twofish::Crypt_Twofish() + */ +/** + * Toggles the internal implementation + */ +define('CRYPT_TWOFISH_MODE_INTERNAL', CRYPT_MODE_INTERNAL); +/** + * Toggles the mcrypt implementation + */ +define('CRYPT_TWOFISH_MODE_MCRYPT', CRYPT_MODE_MCRYPT); +/**#@-*/ + +/** + * Pure-PHP implementation of Twofish. + * + * @package Crypt_Twofish + * @author Jim Wigginton + * @author Hans-Juergen Petrich + * @version 1.0 + * @access public + */ +class Crypt_Twofish extends Crypt_Base +{ + /** + * The namespace used by the cipher for its constants. + * + * @see Crypt_Base::const_namespace + * @var String + * @access private + */ + var $const_namespace = 'TWOFISH'; + + /** + * The mcrypt specific name of the cipher + * + * @see Crypt_Base::cipher_name_mcrypt + * @var String + * @access private + */ + var $cipher_name_mcrypt = 'twofish'; + + /** + * Optimizing value while CFB-encrypting + * + * @see Crypt_Base::cfb_init_len + * @var Integer + * @access private + */ + var $cfb_init_len = 800; + + /** + * Q-Table + * + * @var Array + * @access private + */ + var $q0 = array ( + 0xA9, 0x67, 0xB3, 0xE8, 0x04, 0xFD, 0xA3, 0x76, + 0x9A, 0x92, 0x80, 0x78, 0xE4, 0xDD, 0xD1, 0x38, + 0x0D, 0xC6, 0x35, 0x98, 0x18, 0xF7, 0xEC, 0x6C, + 0x43, 0x75, 0x37, 0x26, 0xFA, 0x13, 0x94, 0x48, + 0xF2, 0xD0, 0x8B, 0x30, 0x84, 0x54, 0xDF, 0x23, + 0x19, 0x5B, 0x3D, 0x59, 0xF3, 0xAE, 0xA2, 0x82, + 0x63, 0x01, 0x83, 0x2E, 0xD9, 0x51, 0x9B, 0x7C, + 0xA6, 0xEB, 0xA5, 0xBE, 0x16, 0x0C, 0xE3, 0x61, + 0xC0, 0x8C, 0x3A, 0xF5, 0x73, 0x2C, 0x25, 0x0B, + 0xBB, 0x4E, 0x89, 0x6B, 0x53, 0x6A, 0xB4, 0xF1, + 0xE1, 0xE6, 0xBD, 0x45, 0xE2, 0xF4, 0xB6, 0x66, + 0xCC, 0x95, 0x03, 0x56, 0xD4, 0x1C, 0x1E, 0xD7, + 0xFB, 0xC3, 0x8E, 0xB5, 0xE9, 0xCF, 0xBF, 0xBA, + 0xEA, 0x77, 0x39, 0xAF, 0x33, 0xC9, 0x62, 0x71, + 0x81, 0x79, 0x09, 0xAD, 0x24, 0xCD, 0xF9, 0xD8, + 0xE5, 0xC5, 0xB9, 0x4D, 0x44, 0x08, 0x86, 0xE7, + 0xA1, 0x1D, 0xAA, 0xED, 0x06, 0x70, 0xB2, 0xD2, + 0x41, 0x7B, 0xA0, 0x11, 0x31, 0xC2, 0x27, 0x90, + 0x20, 0xF6, 0x60, 0xFF, 0x96, 0x5C, 0xB1, 0xAB, + 0x9E, 0x9C, 0x52, 0x1B, 0x5F, 0x93, 0x0A, 0xEF, + 0x91, 0x85, 0x49, 0xEE, 0x2D, 0x4F, 0x8F, 0x3B, + 0x47, 0x87, 0x6D, 0x46, 0xD6, 0x3E, 0x69, 0x64, + 0x2A, 0xCE, 0xCB, 0x2F, 0xFC, 0x97, 0x05, 0x7A, + 0xAC, 0x7F, 0xD5, 0x1A, 0x4B, 0x0E, 0xA7, 0x5A, + 0x28, 0x14, 0x3F, 0x29, 0x88, 0x3C, 0x4C, 0x02, + 0xB8, 0xDA, 0xB0, 0x17, 0x55, 0x1F, 0x8A, 0x7D, + 0x57, 0xC7, 0x8D, 0x74, 0xB7, 0xC4, 0x9F, 0x72, + 0x7E, 0x15, 0x22, 0x12, 0x58, 0x07, 0x99, 0x34, + 0x6E, 0x50, 0xDE, 0x68, 0x65, 0xBC, 0xDB, 0xF8, + 0xC8, 0xA8, 0x2B, 0x40, 0xDC, 0xFE, 0x32, 0xA4, + 0xCA, 0x10, 0x21, 0xF0, 0xD3, 0x5D, 0x0F, 0x00, + 0x6F, 0x9D, 0x36, 0x42, 0x4A, 0x5E, 0xC1, 0xE0 + ); + + /** + * Q-Table + * + * @var Array + * @access private + */ + var $q1 = array ( + 0x75, 0xF3, 0xC6, 0xF4, 0xDB, 0x7B, 0xFB, 0xC8, + 0x4A, 0xD3, 0xE6, 0x6B, 0x45, 0x7D, 0xE8, 0x4B, + 0xD6, 0x32, 0xD8, 0xFD, 0x37, 0x71, 0xF1, 0xE1, + 0x30, 0x0F, 0xF8, 0x1B, 0x87, 0xFA, 0x06, 0x3F, + 0x5E, 0xBA, 0xAE, 0x5B, 0x8A, 0x00, 0xBC, 0x9D, + 0x6D, 0xC1, 0xB1, 0x0E, 0x80, 0x5D, 0xD2, 0xD5, + 0xA0, 0x84, 0x07, 0x14, 0xB5, 0x90, 0x2C, 0xA3, + 0xB2, 0x73, 0x4C, 0x54, 0x92, 0x74, 0x36, 0x51, + 0x38, 0xB0, 0xBD, 0x5A, 0xFC, 0x60, 0x62, 0x96, + 0x6C, 0x42, 0xF7, 0x10, 0x7C, 0x28, 0x27, 0x8C, + 0x13, 0x95, 0x9C, 0xC7, 0x24, 0x46, 0x3B, 0x70, + 0xCA, 0xE3, 0x85, 0xCB, 0x11, 0xD0, 0x93, 0xB8, + 0xA6, 0x83, 0x20, 0xFF, 0x9F, 0x77, 0xC3, 0xCC, + 0x03, 0x6F, 0x08, 0xBF, 0x40, 0xE7, 0x2B, 0xE2, + 0x79, 0x0C, 0xAA, 0x82, 0x41, 0x3A, 0xEA, 0xB9, + 0xE4, 0x9A, 0xA4, 0x97, 0x7E, 0xDA, 0x7A, 0x17, + 0x66, 0x94, 0xA1, 0x1D, 0x3D, 0xF0, 0xDE, 0xB3, + 0x0B, 0x72, 0xA7, 0x1C, 0xEF, 0xD1, 0x53, 0x3E, + 0x8F, 0x33, 0x26, 0x5F, 0xEC, 0x76, 0x2A, 0x49, + 0x81, 0x88, 0xEE, 0x21, 0xC4, 0x1A, 0xEB, 0xD9, + 0xC5, 0x39, 0x99, 0xCD, 0xAD, 0x31, 0x8B, 0x01, + 0x18, 0x23, 0xDD, 0x1F, 0x4E, 0x2D, 0xF9, 0x48, + 0x4F, 0xF2, 0x65, 0x8E, 0x78, 0x5C, 0x58, 0x19, + 0x8D, 0xE5, 0x98, 0x57, 0x67, 0x7F, 0x05, 0x64, + 0xAF, 0x63, 0xB6, 0xFE, 0xF5, 0xB7, 0x3C, 0xA5, + 0xCE, 0xE9, 0x68, 0x44, 0xE0, 0x4D, 0x43, 0x69, + 0x29, 0x2E, 0xAC, 0x15, 0x59, 0xA8, 0x0A, 0x9E, + 0x6E, 0x47, 0xDF, 0x34, 0x35, 0x6A, 0xCF, 0xDC, + 0x22, 0xC9, 0xC0, 0x9B, 0x89, 0xD4, 0xED, 0xAB, + 0x12, 0xA2, 0x0D, 0x52, 0xBB, 0x02, 0x2F, 0xA9, + 0xD7, 0x61, 0x1E, 0xB4, 0x50, 0x04, 0xF6, 0xC2, + 0x16, 0x25, 0x86, 0x56, 0x55, 0x09, 0xBE, 0x91 + ); + + /** + * M-Table + * + * @var Array + * @access private + */ + var $m0 = array ( + 0xBCBC3275, 0xECEC21F3, 0x202043C6, 0xB3B3C9F4, 0xDADA03DB, 0x02028B7B, 0xE2E22BFB, 0x9E9EFAC8, + 0xC9C9EC4A, 0xD4D409D3, 0x18186BE6, 0x1E1E9F6B, 0x98980E45, 0xB2B2387D, 0xA6A6D2E8, 0x2626B74B, + 0x3C3C57D6, 0x93938A32, 0x8282EED8, 0x525298FD, 0x7B7BD437, 0xBBBB3771, 0x5B5B97F1, 0x474783E1, + 0x24243C30, 0x5151E20F, 0xBABAC6F8, 0x4A4AF31B, 0xBFBF4887, 0x0D0D70FA, 0xB0B0B306, 0x7575DE3F, + 0xD2D2FD5E, 0x7D7D20BA, 0x666631AE, 0x3A3AA35B, 0x59591C8A, 0x00000000, 0xCDCD93BC, 0x1A1AE09D, + 0xAEAE2C6D, 0x7F7FABC1, 0x2B2BC7B1, 0xBEBEB90E, 0xE0E0A080, 0x8A8A105D, 0x3B3B52D2, 0x6464BAD5, + 0xD8D888A0, 0xE7E7A584, 0x5F5FE807, 0x1B1B1114, 0x2C2CC2B5, 0xFCFCB490, 0x3131272C, 0x808065A3, + 0x73732AB2, 0x0C0C8173, 0x79795F4C, 0x6B6B4154, 0x4B4B0292, 0x53536974, 0x94948F36, 0x83831F51, + 0x2A2A3638, 0xC4C49CB0, 0x2222C8BD, 0xD5D5F85A, 0xBDBDC3FC, 0x48487860, 0xFFFFCE62, 0x4C4C0796, + 0x4141776C, 0xC7C7E642, 0xEBEB24F7, 0x1C1C1410, 0x5D5D637C, 0x36362228, 0x6767C027, 0xE9E9AF8C, + 0x4444F913, 0x1414EA95, 0xF5F5BB9C, 0xCFCF18C7, 0x3F3F2D24, 0xC0C0E346, 0x7272DB3B, 0x54546C70, + 0x29294CCA, 0xF0F035E3, 0x0808FE85, 0xC6C617CB, 0xF3F34F11, 0x8C8CE4D0, 0xA4A45993, 0xCACA96B8, + 0x68683BA6, 0xB8B84D83, 0x38382820, 0xE5E52EFF, 0xADAD569F, 0x0B0B8477, 0xC8C81DC3, 0x9999FFCC, + 0x5858ED03, 0x19199A6F, 0x0E0E0A08, 0x95957EBF, 0x70705040, 0xF7F730E7, 0x6E6ECF2B, 0x1F1F6EE2, + 0xB5B53D79, 0x09090F0C, 0x616134AA, 0x57571682, 0x9F9F0B41, 0x9D9D803A, 0x111164EA, 0x2525CDB9, + 0xAFAFDDE4, 0x4545089A, 0xDFDF8DA4, 0xA3A35C97, 0xEAEAD57E, 0x353558DA, 0xEDEDD07A, 0x4343FC17, + 0xF8F8CB66, 0xFBFBB194, 0x3737D3A1, 0xFAFA401D, 0xC2C2683D, 0xB4B4CCF0, 0x32325DDE, 0x9C9C71B3, + 0x5656E70B, 0xE3E3DA72, 0x878760A7, 0x15151B1C, 0xF9F93AEF, 0x6363BFD1, 0x3434A953, 0x9A9A853E, + 0xB1B1428F, 0x7C7CD133, 0x88889B26, 0x3D3DA65F, 0xA1A1D7EC, 0xE4E4DF76, 0x8181942A, 0x91910149, + 0x0F0FFB81, 0xEEEEAA88, 0x161661EE, 0xD7D77321, 0x9797F5C4, 0xA5A5A81A, 0xFEFE3FEB, 0x6D6DB5D9, + 0x7878AEC5, 0xC5C56D39, 0x1D1DE599, 0x7676A4CD, 0x3E3EDCAD, 0xCBCB6731, 0xB6B6478B, 0xEFEF5B01, + 0x12121E18, 0x6060C523, 0x6A6AB0DD, 0x4D4DF61F, 0xCECEE94E, 0xDEDE7C2D, 0x55559DF9, 0x7E7E5A48, + 0x2121B24F, 0x03037AF2, 0xA0A02665, 0x5E5E198E, 0x5A5A6678, 0x65654B5C, 0x62624E58, 0xFDFD4519, + 0x0606F48D, 0x404086E5, 0xF2F2BE98, 0x3333AC57, 0x17179067, 0x05058E7F, 0xE8E85E05, 0x4F4F7D64, + 0x89896AAF, 0x10109563, 0x74742FB6, 0x0A0A75FE, 0x5C5C92F5, 0x9B9B74B7, 0x2D2D333C, 0x3030D6A5, + 0x2E2E49CE, 0x494989E9, 0x46467268, 0x77775544, 0xA8A8D8E0, 0x9696044D, 0x2828BD43, 0xA9A92969, + 0xD9D97929, 0x8686912E, 0xD1D187AC, 0xF4F44A15, 0x8D8D1559, 0xD6D682A8, 0xB9B9BC0A, 0x42420D9E, + 0xF6F6C16E, 0x2F2FB847, 0xDDDD06DF, 0x23233934, 0xCCCC6235, 0xF1F1C46A, 0xC1C112CF, 0x8585EBDC, + 0x8F8F9E22, 0x7171A1C9, 0x9090F0C0, 0xAAAA539B, 0x0101F189, 0x8B8BE1D4, 0x4E4E8CED, 0x8E8E6FAB, + 0xABABA212, 0x6F6F3EA2, 0xE6E6540D, 0xDBDBF252, 0x92927BBB, 0xB7B7B602, 0x6969CA2F, 0x3939D9A9, + 0xD3D30CD7, 0xA7A72361, 0xA2A2AD1E, 0xC3C399B4, 0x6C6C4450, 0x07070504, 0x04047FF6, 0x272746C2, + 0xACACA716, 0xD0D07625, 0x50501386, 0xDCDCF756, 0x84841A55, 0xE1E15109, 0x7A7A25BE, 0x1313EF91 + ); + + /** + * M-Table + * + * @var Array + * @access private + */ + var $m1 = array ( + 0xA9D93939, 0x67901717, 0xB3719C9C, 0xE8D2A6A6, 0x04050707, 0xFD985252, 0xA3658080, 0x76DFE4E4, + 0x9A084545, 0x92024B4B, 0x80A0E0E0, 0x78665A5A, 0xE4DDAFAF, 0xDDB06A6A, 0xD1BF6363, 0x38362A2A, + 0x0D54E6E6, 0xC6432020, 0x3562CCCC, 0x98BEF2F2, 0x181E1212, 0xF724EBEB, 0xECD7A1A1, 0x6C774141, + 0x43BD2828, 0x7532BCBC, 0x37D47B7B, 0x269B8888, 0xFA700D0D, 0x13F94444, 0x94B1FBFB, 0x485A7E7E, + 0xF27A0303, 0xD0E48C8C, 0x8B47B6B6, 0x303C2424, 0x84A5E7E7, 0x54416B6B, 0xDF06DDDD, 0x23C56060, + 0x1945FDFD, 0x5BA33A3A, 0x3D68C2C2, 0x59158D8D, 0xF321ECEC, 0xAE316666, 0xA23E6F6F, 0x82165757, + 0x63951010, 0x015BEFEF, 0x834DB8B8, 0x2E918686, 0xD9B56D6D, 0x511F8383, 0x9B53AAAA, 0x7C635D5D, + 0xA63B6868, 0xEB3FFEFE, 0xA5D63030, 0xBE257A7A, 0x16A7ACAC, 0x0C0F0909, 0xE335F0F0, 0x6123A7A7, + 0xC0F09090, 0x8CAFE9E9, 0x3A809D9D, 0xF5925C5C, 0x73810C0C, 0x2C273131, 0x2576D0D0, 0x0BE75656, + 0xBB7B9292, 0x4EE9CECE, 0x89F10101, 0x6B9F1E1E, 0x53A93434, 0x6AC4F1F1, 0xB499C3C3, 0xF1975B5B, + 0xE1834747, 0xE66B1818, 0xBDC82222, 0x450E9898, 0xE26E1F1F, 0xF4C9B3B3, 0xB62F7474, 0x66CBF8F8, + 0xCCFF9999, 0x95EA1414, 0x03ED5858, 0x56F7DCDC, 0xD4E18B8B, 0x1C1B1515, 0x1EADA2A2, 0xD70CD3D3, + 0xFB2BE2E2, 0xC31DC8C8, 0x8E195E5E, 0xB5C22C2C, 0xE9894949, 0xCF12C1C1, 0xBF7E9595, 0xBA207D7D, + 0xEA641111, 0x77840B0B, 0x396DC5C5, 0xAF6A8989, 0x33D17C7C, 0xC9A17171, 0x62CEFFFF, 0x7137BBBB, + 0x81FB0F0F, 0x793DB5B5, 0x0951E1E1, 0xADDC3E3E, 0x242D3F3F, 0xCDA47676, 0xF99D5555, 0xD8EE8282, + 0xE5864040, 0xC5AE7878, 0xB9CD2525, 0x4D049696, 0x44557777, 0x080A0E0E, 0x86135050, 0xE730F7F7, + 0xA1D33737, 0x1D40FAFA, 0xAA346161, 0xED8C4E4E, 0x06B3B0B0, 0x706C5454, 0xB22A7373, 0xD2523B3B, + 0x410B9F9F, 0x7B8B0202, 0xA088D8D8, 0x114FF3F3, 0x3167CBCB, 0xC2462727, 0x27C06767, 0x90B4FCFC, + 0x20283838, 0xF67F0404, 0x60784848, 0xFF2EE5E5, 0x96074C4C, 0x5C4B6565, 0xB1C72B2B, 0xAB6F8E8E, + 0x9E0D4242, 0x9CBBF5F5, 0x52F2DBDB, 0x1BF34A4A, 0x5FA63D3D, 0x9359A4A4, 0x0ABCB9B9, 0xEF3AF9F9, + 0x91EF1313, 0x85FE0808, 0x49019191, 0xEE611616, 0x2D7CDEDE, 0x4FB22121, 0x8F42B1B1, 0x3BDB7272, + 0x47B82F2F, 0x8748BFBF, 0x6D2CAEAE, 0x46E3C0C0, 0xD6573C3C, 0x3E859A9A, 0x6929A9A9, 0x647D4F4F, + 0x2A948181, 0xCE492E2E, 0xCB17C6C6, 0x2FCA6969, 0xFCC3BDBD, 0x975CA3A3, 0x055EE8E8, 0x7AD0EDED, + 0xAC87D1D1, 0x7F8E0505, 0xD5BA6464, 0x1AA8A5A5, 0x4BB72626, 0x0EB9BEBE, 0xA7608787, 0x5AF8D5D5, + 0x28223636, 0x14111B1B, 0x3FDE7575, 0x2979D9D9, 0x88AAEEEE, 0x3C332D2D, 0x4C5F7979, 0x02B6B7B7, + 0xB896CACA, 0xDA583535, 0xB09CC4C4, 0x17FC4343, 0x551A8484, 0x1FF64D4D, 0x8A1C5959, 0x7D38B2B2, + 0x57AC3333, 0xC718CFCF, 0x8DF40606, 0x74695353, 0xB7749B9B, 0xC4F59797, 0x9F56ADAD, 0x72DAE3E3, + 0x7ED5EAEA, 0x154AF4F4, 0x229E8F8F, 0x12A2ABAB, 0x584E6262, 0x07E85F5F, 0x99E51D1D, 0x34392323, + 0x6EC1F6F6, 0x50446C6C, 0xDE5D3232, 0x68724646, 0x6526A0A0, 0xBC93CDCD, 0xDB03DADA, 0xF8C6BABA, + 0xC8FA9E9E, 0xA882D6D6, 0x2BCF6E6E, 0x40507070, 0xDCEB8585, 0xFE750A0A, 0x328A9393, 0xA48DDFDF, + 0xCA4C2929, 0x10141C1C, 0x2173D7D7, 0xF0CCB4B4, 0xD309D4D4, 0x5D108A8A, 0x0FE25151, 0x00000000, + 0x6F9A1919, 0x9DE01A1A, 0x368F9494, 0x42E6C7C7, 0x4AECC9C9, 0x5EFDD2D2, 0xC1AB7F7F, 0xE0D8A8A8 + ); + + /** + * M-Table + * + * @var Array + * @access private + */ + var $m2 = array ( + 0xBC75BC32, 0xECF3EC21, 0x20C62043, 0xB3F4B3C9, 0xDADBDA03, 0x027B028B, 0xE2FBE22B, 0x9EC89EFA, + 0xC94AC9EC, 0xD4D3D409, 0x18E6186B, 0x1E6B1E9F, 0x9845980E, 0xB27DB238, 0xA6E8A6D2, 0x264B26B7, + 0x3CD63C57, 0x9332938A, 0x82D882EE, 0x52FD5298, 0x7B377BD4, 0xBB71BB37, 0x5BF15B97, 0x47E14783, + 0x2430243C, 0x510F51E2, 0xBAF8BAC6, 0x4A1B4AF3, 0xBF87BF48, 0x0DFA0D70, 0xB006B0B3, 0x753F75DE, + 0xD25ED2FD, 0x7DBA7D20, 0x66AE6631, 0x3A5B3AA3, 0x598A591C, 0x00000000, 0xCDBCCD93, 0x1A9D1AE0, + 0xAE6DAE2C, 0x7FC17FAB, 0x2BB12BC7, 0xBE0EBEB9, 0xE080E0A0, 0x8A5D8A10, 0x3BD23B52, 0x64D564BA, + 0xD8A0D888, 0xE784E7A5, 0x5F075FE8, 0x1B141B11, 0x2CB52CC2, 0xFC90FCB4, 0x312C3127, 0x80A38065, + 0x73B2732A, 0x0C730C81, 0x794C795F, 0x6B546B41, 0x4B924B02, 0x53745369, 0x9436948F, 0x8351831F, + 0x2A382A36, 0xC4B0C49C, 0x22BD22C8, 0xD55AD5F8, 0xBDFCBDC3, 0x48604878, 0xFF62FFCE, 0x4C964C07, + 0x416C4177, 0xC742C7E6, 0xEBF7EB24, 0x1C101C14, 0x5D7C5D63, 0x36283622, 0x672767C0, 0xE98CE9AF, + 0x441344F9, 0x149514EA, 0xF59CF5BB, 0xCFC7CF18, 0x3F243F2D, 0xC046C0E3, 0x723B72DB, 0x5470546C, + 0x29CA294C, 0xF0E3F035, 0x088508FE, 0xC6CBC617, 0xF311F34F, 0x8CD08CE4, 0xA493A459, 0xCAB8CA96, + 0x68A6683B, 0xB883B84D, 0x38203828, 0xE5FFE52E, 0xAD9FAD56, 0x0B770B84, 0xC8C3C81D, 0x99CC99FF, + 0x580358ED, 0x196F199A, 0x0E080E0A, 0x95BF957E, 0x70407050, 0xF7E7F730, 0x6E2B6ECF, 0x1FE21F6E, + 0xB579B53D, 0x090C090F, 0x61AA6134, 0x57825716, 0x9F419F0B, 0x9D3A9D80, 0x11EA1164, 0x25B925CD, + 0xAFE4AFDD, 0x459A4508, 0xDFA4DF8D, 0xA397A35C, 0xEA7EEAD5, 0x35DA3558, 0xED7AEDD0, 0x431743FC, + 0xF866F8CB, 0xFB94FBB1, 0x37A137D3, 0xFA1DFA40, 0xC23DC268, 0xB4F0B4CC, 0x32DE325D, 0x9CB39C71, + 0x560B56E7, 0xE372E3DA, 0x87A78760, 0x151C151B, 0xF9EFF93A, 0x63D163BF, 0x345334A9, 0x9A3E9A85, + 0xB18FB142, 0x7C337CD1, 0x8826889B, 0x3D5F3DA6, 0xA1ECA1D7, 0xE476E4DF, 0x812A8194, 0x91499101, + 0x0F810FFB, 0xEE88EEAA, 0x16EE1661, 0xD721D773, 0x97C497F5, 0xA51AA5A8, 0xFEEBFE3F, 0x6DD96DB5, + 0x78C578AE, 0xC539C56D, 0x1D991DE5, 0x76CD76A4, 0x3EAD3EDC, 0xCB31CB67, 0xB68BB647, 0xEF01EF5B, + 0x1218121E, 0x602360C5, 0x6ADD6AB0, 0x4D1F4DF6, 0xCE4ECEE9, 0xDE2DDE7C, 0x55F9559D, 0x7E487E5A, + 0x214F21B2, 0x03F2037A, 0xA065A026, 0x5E8E5E19, 0x5A785A66, 0x655C654B, 0x6258624E, 0xFD19FD45, + 0x068D06F4, 0x40E54086, 0xF298F2BE, 0x335733AC, 0x17671790, 0x057F058E, 0xE805E85E, 0x4F644F7D, + 0x89AF896A, 0x10631095, 0x74B6742F, 0x0AFE0A75, 0x5CF55C92, 0x9BB79B74, 0x2D3C2D33, 0x30A530D6, + 0x2ECE2E49, 0x49E94989, 0x46684672, 0x77447755, 0xA8E0A8D8, 0x964D9604, 0x284328BD, 0xA969A929, + 0xD929D979, 0x862E8691, 0xD1ACD187, 0xF415F44A, 0x8D598D15, 0xD6A8D682, 0xB90AB9BC, 0x429E420D, + 0xF66EF6C1, 0x2F472FB8, 0xDDDFDD06, 0x23342339, 0xCC35CC62, 0xF16AF1C4, 0xC1CFC112, 0x85DC85EB, + 0x8F228F9E, 0x71C971A1, 0x90C090F0, 0xAA9BAA53, 0x018901F1, 0x8BD48BE1, 0x4EED4E8C, 0x8EAB8E6F, + 0xAB12ABA2, 0x6FA26F3E, 0xE60DE654, 0xDB52DBF2, 0x92BB927B, 0xB702B7B6, 0x692F69CA, 0x39A939D9, + 0xD3D7D30C, 0xA761A723, 0xA21EA2AD, 0xC3B4C399, 0x6C506C44, 0x07040705, 0x04F6047F, 0x27C22746, + 0xAC16ACA7, 0xD025D076, 0x50865013, 0xDC56DCF7, 0x8455841A, 0xE109E151, 0x7ABE7A25, 0x139113EF + ); + + /** + * M-Table + * + * @var Array + * @access private + */ + var $m3 = array ( + 0xD939A9D9, 0x90176790, 0x719CB371, 0xD2A6E8D2, 0x05070405, 0x9852FD98, 0x6580A365, 0xDFE476DF, + 0x08459A08, 0x024B9202, 0xA0E080A0, 0x665A7866, 0xDDAFE4DD, 0xB06ADDB0, 0xBF63D1BF, 0x362A3836, + 0x54E60D54, 0x4320C643, 0x62CC3562, 0xBEF298BE, 0x1E12181E, 0x24EBF724, 0xD7A1ECD7, 0x77416C77, + 0xBD2843BD, 0x32BC7532, 0xD47B37D4, 0x9B88269B, 0x700DFA70, 0xF94413F9, 0xB1FB94B1, 0x5A7E485A, + 0x7A03F27A, 0xE48CD0E4, 0x47B68B47, 0x3C24303C, 0xA5E784A5, 0x416B5441, 0x06DDDF06, 0xC56023C5, + 0x45FD1945, 0xA33A5BA3, 0x68C23D68, 0x158D5915, 0x21ECF321, 0x3166AE31, 0x3E6FA23E, 0x16578216, + 0x95106395, 0x5BEF015B, 0x4DB8834D, 0x91862E91, 0xB56DD9B5, 0x1F83511F, 0x53AA9B53, 0x635D7C63, + 0x3B68A63B, 0x3FFEEB3F, 0xD630A5D6, 0x257ABE25, 0xA7AC16A7, 0x0F090C0F, 0x35F0E335, 0x23A76123, + 0xF090C0F0, 0xAFE98CAF, 0x809D3A80, 0x925CF592, 0x810C7381, 0x27312C27, 0x76D02576, 0xE7560BE7, + 0x7B92BB7B, 0xE9CE4EE9, 0xF10189F1, 0x9F1E6B9F, 0xA93453A9, 0xC4F16AC4, 0x99C3B499, 0x975BF197, + 0x8347E183, 0x6B18E66B, 0xC822BDC8, 0x0E98450E, 0x6E1FE26E, 0xC9B3F4C9, 0x2F74B62F, 0xCBF866CB, + 0xFF99CCFF, 0xEA1495EA, 0xED5803ED, 0xF7DC56F7, 0xE18BD4E1, 0x1B151C1B, 0xADA21EAD, 0x0CD3D70C, + 0x2BE2FB2B, 0x1DC8C31D, 0x195E8E19, 0xC22CB5C2, 0x8949E989, 0x12C1CF12, 0x7E95BF7E, 0x207DBA20, + 0x6411EA64, 0x840B7784, 0x6DC5396D, 0x6A89AF6A, 0xD17C33D1, 0xA171C9A1, 0xCEFF62CE, 0x37BB7137, + 0xFB0F81FB, 0x3DB5793D, 0x51E10951, 0xDC3EADDC, 0x2D3F242D, 0xA476CDA4, 0x9D55F99D, 0xEE82D8EE, + 0x8640E586, 0xAE78C5AE, 0xCD25B9CD, 0x04964D04, 0x55774455, 0x0A0E080A, 0x13508613, 0x30F7E730, + 0xD337A1D3, 0x40FA1D40, 0x3461AA34, 0x8C4EED8C, 0xB3B006B3, 0x6C54706C, 0x2A73B22A, 0x523BD252, + 0x0B9F410B, 0x8B027B8B, 0x88D8A088, 0x4FF3114F, 0x67CB3167, 0x4627C246, 0xC06727C0, 0xB4FC90B4, + 0x28382028, 0x7F04F67F, 0x78486078, 0x2EE5FF2E, 0x074C9607, 0x4B655C4B, 0xC72BB1C7, 0x6F8EAB6F, + 0x0D429E0D, 0xBBF59CBB, 0xF2DB52F2, 0xF34A1BF3, 0xA63D5FA6, 0x59A49359, 0xBCB90ABC, 0x3AF9EF3A, + 0xEF1391EF, 0xFE0885FE, 0x01914901, 0x6116EE61, 0x7CDE2D7C, 0xB2214FB2, 0x42B18F42, 0xDB723BDB, + 0xB82F47B8, 0x48BF8748, 0x2CAE6D2C, 0xE3C046E3, 0x573CD657, 0x859A3E85, 0x29A96929, 0x7D4F647D, + 0x94812A94, 0x492ECE49, 0x17C6CB17, 0xCA692FCA, 0xC3BDFCC3, 0x5CA3975C, 0x5EE8055E, 0xD0ED7AD0, + 0x87D1AC87, 0x8E057F8E, 0xBA64D5BA, 0xA8A51AA8, 0xB7264BB7, 0xB9BE0EB9, 0x6087A760, 0xF8D55AF8, + 0x22362822, 0x111B1411, 0xDE753FDE, 0x79D92979, 0xAAEE88AA, 0x332D3C33, 0x5F794C5F, 0xB6B702B6, + 0x96CAB896, 0x5835DA58, 0x9CC4B09C, 0xFC4317FC, 0x1A84551A, 0xF64D1FF6, 0x1C598A1C, 0x38B27D38, + 0xAC3357AC, 0x18CFC718, 0xF4068DF4, 0x69537469, 0x749BB774, 0xF597C4F5, 0x56AD9F56, 0xDAE372DA, + 0xD5EA7ED5, 0x4AF4154A, 0x9E8F229E, 0xA2AB12A2, 0x4E62584E, 0xE85F07E8, 0xE51D99E5, 0x39233439, + 0xC1F66EC1, 0x446C5044, 0x5D32DE5D, 0x72466872, 0x26A06526, 0x93CDBC93, 0x03DADB03, 0xC6BAF8C6, + 0xFA9EC8FA, 0x82D6A882, 0xCF6E2BCF, 0x50704050, 0xEB85DCEB, 0x750AFE75, 0x8A93328A, 0x8DDFA48D, + 0x4C29CA4C, 0x141C1014, 0x73D72173, 0xCCB4F0CC, 0x09D4D309, 0x108A5D10, 0xE2510FE2, 0x00000000, + 0x9A196F9A, 0xE01A9DE0, 0x8F94368F, 0xE6C742E6, 0xECC94AEC, 0xFDD25EFD, 0xAB7FC1AB, 0xD8A8E0D8 + ); + + /** + * The Key Schedule Array + * + * @var Array + * @access private + */ + var $K = array(); + + /** + * The Key depended S-Table 0 + * + * @var Array + * @access private + */ + var $S0 = array(); + + /** + * The Key depended S-Table 1 + * + * @var Array + * @access private + */ + var $S1 = array(); + + /** + * The Key depended S-Table 2 + * + * @var Array + * @access private + */ + var $S2 = array(); + + /** + * The Key depended S-Table 3 + * + * @var Array + * @access private + */ + var $S3 = array(); + + /** + * Holds the last used key + * + * @var Array + * @access private + */ + var $kl; + + /** + * Default Constructor. + * + * Determines whether or not the mcrypt extension should be used. + * + * $mode could be: + * + * - CRYPT_TWOFISH_MODE_ECB + * + * - CRYPT_TWOFISH_MODE_CBC + * + * - CRYPT_TWOFISH_MODE_CTR + * + * - CRYPT_TWOFISH_MODE_CFB + * + * - CRYPT_TWOFISH_MODE_OFB + * + * If not explictly set, CRYPT_TWOFISH_MODE_CBC will be used. + * + * @see Crypt_Base::Crypt_Base() + * @param optional Integer $mode + * @access public + */ + function Crypt_Twofish($mode = CRYPT_TWOFISH_MODE_CBC) + { + parent::Crypt_Base($mode); + } + + /** + * Sets the key. + * + * Keys can be of any length. Twofish, itself, requires the use of a key that's 128, 192 or 256-bits long. + * If the key is less than 256-bits we round the length up to the closest valid key length, + * padding $key with null bytes. If the key is more than 256-bits, we trim the excess bits. + * + * If the key is not explicitly set, it'll be assumed a 128 bits key to be all null bytes. + * + * @access public + * @see Crypt_Base::setKey() + * @param String $key + */ + function setKey($key) + { + $keylength = strlen($key); + switch (true) { + case $keylength <= 16: + $key = str_pad($key, 16, "\0"); + break; + case $keylength <= 24: + $key = str_pad($key, 24, "\0"); + break; + case $keylength < 32: + $key = str_pad($key, 32, "\0"); + break; + case $keylength > 32: + $key = substr($key, 0, 32); + } + parent::setKey($key); + } + + /** + * Setup the key (expansion) + * + * @see Crypt_Base::_setupKey() + * @access private + */ + function _setupKey() + { + if (isset($this->kl['key']) && $this->key === $this->kl['key']) { + // already expanded + return; + } + $this->kl = array('key' => $this->key); + + /* Key expanding and generating the key-depended s-boxes */ + $le_longs = unpack('V*', $this->key); + $key = unpack('C*', $this->key); + $m0 = $this->m0; + $m1 = $this->m1; + $m2 = $this->m2; + $m3 = $this->m3; + $q0 = $this->q0; + $q1 = $this->q1; + + $K = $S0 = $S1 = $S2 = $S3 = array(); + + switch (strlen($this->key)) { + case 16: + list ($s7, $s6, $s5, $s4) = $this->_mdsrem($le_longs[1], $le_longs[2]); + list ($s3, $s2, $s1, $s0) = $this->_mdsrem($le_longs[3], $le_longs[4]); + for ($i = 0, $j = 1; $i < 40; $i+= 2,$j+= 2) { + $A = $m0[$q0[$q0[$i] ^ $key[ 9]] ^ $key[1]] ^ + $m1[$q0[$q1[$i] ^ $key[10]] ^ $key[2]] ^ + $m2[$q1[$q0[$i] ^ $key[11]] ^ $key[3]] ^ + $m3[$q1[$q1[$i] ^ $key[12]] ^ $key[4]]; + $B = $m0[$q0[$q0[$j] ^ $key[13]] ^ $key[5]] ^ + $m1[$q0[$q1[$j] ^ $key[14]] ^ $key[6]] ^ + $m2[$q1[$q0[$j] ^ $key[15]] ^ $key[7]] ^ + $m3[$q1[$q1[$j] ^ $key[16]] ^ $key[8]]; + $B = ($B << 8) | ($B >> 24 & 0xff); + $K[] = $A+= $B; + $K[] = (($A+= $B) << 9 | $A >> 23 & 0x1ff); + } + for ($i = 0; $i < 256; ++$i) { + $S0[$i] = $m0[$q0[$q0[$i] ^ $s4] ^ $s0]; + $S1[$i] = $m1[$q0[$q1[$i] ^ $s5] ^ $s1]; + $S2[$i] = $m2[$q1[$q0[$i] ^ $s6] ^ $s2]; + $S3[$i] = $m3[$q1[$q1[$i] ^ $s7] ^ $s3]; + } + break; + case 24: + list ($sb, $sa, $s9, $s8) = $this->_mdsrem($le_longs[1], $le_longs[2]); + list ($s7, $s6, $s5, $s4) = $this->_mdsrem($le_longs[3], $le_longs[4]); + list ($s3, $s2, $s1, $s0) = $this->_mdsrem($le_longs[5], $le_longs[6]); + for ($i = 0, $j = 1; $i < 40; $i+= 2, $j+= 2) { + $A = $m0[$q0[$q0[$q1[$i] ^ $key[17]] ^ $key[ 9]] ^ $key[1]] ^ + $m1[$q0[$q1[$q1[$i] ^ $key[18]] ^ $key[10]] ^ $key[2]] ^ + $m2[$q1[$q0[$q0[$i] ^ $key[19]] ^ $key[11]] ^ $key[3]] ^ + $m3[$q1[$q1[$q0[$i] ^ $key[20]] ^ $key[12]] ^ $key[4]]; + $B = $m0[$q0[$q0[$q1[$j] ^ $key[21]] ^ $key[13]] ^ $key[5]] ^ + $m1[$q0[$q1[$q1[$j] ^ $key[22]] ^ $key[14]] ^ $key[6]] ^ + $m2[$q1[$q0[$q0[$j] ^ $key[23]] ^ $key[15]] ^ $key[7]] ^ + $m3[$q1[$q1[$q0[$j] ^ $key[24]] ^ $key[16]] ^ $key[8]]; + $B = ($B << 8) | ($B >> 24 & 0xff); + $K[] = $A+= $B; + $K[] = (($A+= $B) << 9 | $A >> 23 & 0x1ff); + } + for ($i = 0; $i < 256; ++$i) { + $S0[$i] = $m0[$q0[$q0[$q1[$i] ^ $s8] ^ $s4] ^ $s0]; + $S1[$i] = $m1[$q0[$q1[$q1[$i] ^ $s9] ^ $s5] ^ $s1]; + $S2[$i] = $m2[$q1[$q0[$q0[$i] ^ $sa] ^ $s6] ^ $s2]; + $S3[$i] = $m3[$q1[$q1[$q0[$i] ^ $sb] ^ $s7] ^ $s3]; + } + break; + default: // 32 + list ($sf, $se, $sd, $sc) = $this->_mdsrem($le_longs[1], $le_longs[2]); + list ($sb, $sa, $s9, $s8) = $this->_mdsrem($le_longs[3], $le_longs[4]); + list ($s7, $s6, $s5, $s4) = $this->_mdsrem($le_longs[5], $le_longs[6]); + list ($s3, $s2, $s1, $s0) = $this->_mdsrem($le_longs[7], $le_longs[8]); + for ($i = 0, $j = 1; $i < 40; $i+= 2, $j+= 2) { + $A = $m0[$q0[$q0[$q1[$q1[$i] ^ $key[25]] ^ $key[17]] ^ $key[ 9]] ^ $key[1]] ^ + $m1[$q0[$q1[$q1[$q0[$i] ^ $key[26]] ^ $key[18]] ^ $key[10]] ^ $key[2]] ^ + $m2[$q1[$q0[$q0[$q0[$i] ^ $key[27]] ^ $key[19]] ^ $key[11]] ^ $key[3]] ^ + $m3[$q1[$q1[$q0[$q1[$i] ^ $key[28]] ^ $key[20]] ^ $key[12]] ^ $key[4]]; + $B = $m0[$q0[$q0[$q1[$q1[$j] ^ $key[29]] ^ $key[21]] ^ $key[13]] ^ $key[5]] ^ + $m1[$q0[$q1[$q1[$q0[$j] ^ $key[30]] ^ $key[22]] ^ $key[14]] ^ $key[6]] ^ + $m2[$q1[$q0[$q0[$q0[$j] ^ $key[31]] ^ $key[23]] ^ $key[15]] ^ $key[7]] ^ + $m3[$q1[$q1[$q0[$q1[$j] ^ $key[32]] ^ $key[24]] ^ $key[16]] ^ $key[8]]; + $B = ($B << 8) | ($B >> 24 & 0xff); + $K[] = $A+= $B; + $K[] = (($A+= $B) << 9 | $A >> 23 & 0x1ff); + } + for ($i = 0; $i < 256; ++$i) { + $S0[$i] = $m0[$q0[$q0[$q1[$q1[$i] ^ $sc] ^ $s8] ^ $s4] ^ $s0]; + $S1[$i] = $m1[$q0[$q1[$q1[$q0[$i] ^ $sd] ^ $s9] ^ $s5] ^ $s1]; + $S2[$i] = $m2[$q1[$q0[$q0[$q0[$i] ^ $se] ^ $sa] ^ $s6] ^ $s2]; + $S3[$i] = $m3[$q1[$q1[$q0[$q1[$i] ^ $sf] ^ $sb] ^ $s7] ^ $s3]; + } + } + + $this->K = $K; + $this->S0 = $S0; + $this->S1 = $S1; + $this->S2 = $S2; + $this->S3 = $S3; + } + + /** + * _mdsrem function using by the twofish cipher algorithm + * + * @access private + * @param String $A + * @param String $B + * @return Array + */ + function _mdsrem($A, $B) + { + // No gain by unrolling this loop. + for ($i = 0; $i < 8; ++$i) { + // Get most significant coefficient. + $t = 0xff & ($B >> 24); + + // Shift the others up. + $B = ($B << 8) | (0xff & ($A >> 24)); + $A<<= 8; + + $u = $t << 1; + + // Subtract the modular polynomial on overflow. + if ($t & 0x80) { + $u^= 0x14d; + } + + // Remove t * (a * x^2 + 1). + $B ^= $t ^ ($u << 16); + + // Form u = a*t + t/a = t*(a + 1/a). + $u^= 0x7fffffff & ($t >> 1); + + // Add the modular polynomial on underflow. + if ($t & 0x01) $u^= 0xa6 ; + + // Remove t * (a + 1/a) * (x^3 + x). + $B^= ($u << 24) | ($u << 8); + } + + return array( + 0xff & $B >> 24, + 0xff & $B >> 16, + 0xff & $B >> 8, + 0xff & $B); + } + + /** + * Encrypts a block + * + * @access private + * @param String $in + * @return String + */ + function _encryptBlock($in) + { + $S0 = $this->S0; + $S1 = $this->S1; + $S2 = $this->S2; + $S3 = $this->S3; + $K = $this->K; + + $in = unpack("V4", $in); + $R0 = $K[0] ^ $in[1]; + $R1 = $K[1] ^ $in[2]; + $R2 = $K[2] ^ $in[3]; + $R3 = $K[3] ^ $in[4]; + + $ki = 7; + while ($ki < 39) { + $t0 = $S0[ $R0 & 0xff] ^ + $S1[($R0 >> 8) & 0xff] ^ + $S2[($R0 >> 16) & 0xff] ^ + $S3[($R0 >> 24) & 0xff]; + $t1 = $S0[($R1 >> 24) & 0xff] ^ + $S1[ $R1 & 0xff] ^ + $S2[($R1 >> 8) & 0xff] ^ + $S3[($R1 >> 16) & 0xff]; + $R2^= $t0 + $t1 + $K[++$ki]; + $R2 = ($R2 >> 1 & 0x7fffffff) | ($R2 << 31); + $R3 = ((($R3 >> 31) & 1) | ($R3 << 1)) ^ ($t0 + ($t1 << 1) + $K[++$ki]); + + $t0 = $S0[ $R2 & 0xff] ^ + $S1[($R2 >> 8) & 0xff] ^ + $S2[($R2 >> 16) & 0xff] ^ + $S3[($R2 >> 24) & 0xff]; + $t1 = $S0[($R3 >> 24) & 0xff] ^ + $S1[ $R3 & 0xff] ^ + $S2[($R3 >> 8) & 0xff] ^ + $S3[($R3 >> 16) & 0xff]; + $R0^= ($t0 + $t1 + $K[++$ki]); + $R0 = ($R0 >> 1 & 0x7fffffff) | ($R0 << 31); + $R1 = ((($R1 >> 31) & 1) | ($R1 << 1)) ^ ($t0 + ($t1 << 1) + $K[++$ki]); + } + + return pack("V4", $K[4] ^ $R2, + $K[5] ^ $R3, + $K[6] ^ $R0, + $K[7] ^ $R1); + } + + /** + * Decrypts a block + * + * @access private + * @param String $in + * @return String + */ + function _decryptBlock($in) + { + $S0 = $this->S0; + $S1 = $this->S1; + $S2 = $this->S2; + $S3 = $this->S3; + $K = $this->K; + + $in = unpack("V4", $in); + $R0 = $K[4] ^ $in[1]; + $R1 = $K[5] ^ $in[2]; + $R2 = $K[6] ^ $in[3]; + $R3 = $K[7] ^ $in[4]; + + $ki = 40; + while ($ki > 8) { + $t0 = $S0[$R0 & 0xff] ^ + $S1[$R0 >> 8 & 0xff] ^ + $S2[$R0 >> 16 & 0xff] ^ + $S3[$R0 >> 24 & 0xff]; + $t1 = $S0[$R1 >> 24 & 0xff] ^ + $S1[$R1 & 0xff] ^ + $S2[$R1 >> 8 & 0xff] ^ + $S3[$R1 >> 16 & 0xff]; + $R3^= $t0 + ($t1 << 1) + $K[--$ki]; + $R3 = $R3 >> 1 & 0x7fffffff | $R3 << 31; + $R2 = ($R2 >> 31 & 0x1 | $R2 << 1) ^ ($t0 + $t1 + $K[--$ki]); + + $t0 = $S0[$R2 & 0xff] ^ + $S1[$R2 >> 8 & 0xff] ^ + $S2[$R2 >> 16 & 0xff] ^ + $S3[$R2 >> 24 & 0xff]; + $t1 = $S0[$R3 >> 24 & 0xff] ^ + $S1[$R3 & 0xff] ^ + $S2[$R3 >> 8 & 0xff] ^ + $S3[$R3 >> 16 & 0xff]; + $R1^= $t0 + ($t1 << 1) + $K[--$ki]; + $R1 = $R1 >> 1 & 0x7fffffff | $R1 << 31; + $R0 = ($R0 >> 31 & 0x1 | $R0 << 1) ^ ($t0 + $t1 + $K[--$ki]); + } + + return pack("V4", $K[0] ^ $R2, + $K[1] ^ $R3, + $K[2] ^ $R0, + $K[3] ^ $R1); + } + + /** + * Setup the performance-optimized function for de/encrypt() + * + * @see Crypt_Base::_setupInlineCrypt() + * @access private + */ + function _setupInlineCrypt() + { + $lambda_functions =& Crypt_Twofish::_getLambdaFunctions(); + + // Max. 10 Ultra-Hi-optimized inline-crypt functions. After that, we'll (still) create very fast code, but not the ultimate fast one. + $gen_hi_opt_code = (bool)( count($lambda_functions) < 10 ); + + switch (true) { + case $gen_hi_opt_code: + $code_hash = md5(str_pad("Crypt_Twofish, {$this->mode}, ", 32, "\0") . $this->key); + break; + default: + $code_hash = "Crypt_Twofish, {$this->mode}"; + } + + if (!isset($lambda_functions[$code_hash])) { + switch (true) { + case $gen_hi_opt_code: + $K = $this->K; + + $init_crypt = ' + static $S0, $S1, $S2, $S3; + if (!$S0) { + for ($i = 0; $i < 256; ++$i) { + $S0[] = (int)$self->S0[$i]; + $S1[] = (int)$self->S1[$i]; + $S2[] = (int)$self->S2[$i]; + $S3[] = (int)$self->S3[$i]; + } + } + '; + break; + default: + $K = array(); + for ($i = 0; $i < 40; ++$i) { + $K[] = '$K_' . $i; + } + + $init_crypt = ' + $S0 = $self->S0; + $S1 = $self->S1; + $S2 = $self->S2; + $S3 = $self->S3; + list(' . implode(',', $K) . ') = $self->K; + '; + } + + // Generating encrypt code: + $encrypt_block = ' + $in = unpack("V4", $in); + $R0 = '.$K[0].' ^ $in[1]; + $R1 = '.$K[1].' ^ $in[2]; + $R2 = '.$K[2].' ^ $in[3]; + $R3 = '.$K[3].' ^ $in[4]; + '; + for ($ki = 7, $i = 0; $i < 8; ++$i) { + $encrypt_block.= ' + $t0 = $S0[ $R0 & 0xff] ^ + $S1[($R0 >> 8) & 0xff] ^ + $S2[($R0 >> 16) & 0xff] ^ + $S3[($R0 >> 24) & 0xff]; + $t1 = $S0[($R1 >> 24) & 0xff] ^ + $S1[ $R1 & 0xff] ^ + $S2[($R1 >> 8) & 0xff] ^ + $S3[($R1 >> 16) & 0xff]; + $R2^= ($t0 + $t1 + '.$K[++$ki].'); + $R2 = ($R2 >> 1 & 0x7fffffff) | ($R2 << 31); + $R3 = ((($R3 >> 31) & 1) | ($R3 << 1)) ^ ($t0 + ($t1 << 1) + '.$K[++$ki].'); + + $t0 = $S0[ $R2 & 0xff] ^ + $S1[($R2 >> 8) & 0xff] ^ + $S2[($R2 >> 16) & 0xff] ^ + $S3[($R2 >> 24) & 0xff]; + $t1 = $S0[($R3 >> 24) & 0xff] ^ + $S1[ $R3 & 0xff] ^ + $S2[($R3 >> 8) & 0xff] ^ + $S3[($R3 >> 16) & 0xff]; + $R0^= ($t0 + $t1 + '.$K[++$ki].'); + $R0 = ($R0 >> 1 & 0x7fffffff) | ($R0 << 31); + $R1 = ((($R1 >> 31) & 1) | ($R1 << 1)) ^ ($t0 + ($t1 << 1) + '.$K[++$ki].'); + '; + } + $encrypt_block.= ' + $in = pack("V4", '.$K[4].' ^ $R2, + '.$K[5].' ^ $R3, + '.$K[6].' ^ $R0, + '.$K[7].' ^ $R1); + '; + + // Generating decrypt code: + $decrypt_block = ' + $in = unpack("V4", $in); + $R0 = '.$K[4].' ^ $in[1]; + $R1 = '.$K[5].' ^ $in[2]; + $R2 = '.$K[6].' ^ $in[3]; + $R3 = '.$K[7].' ^ $in[4]; + '; + for ($ki = 40, $i = 0; $i < 8; ++$i) { + $decrypt_block.= ' + $t0 = $S0[$R0 & 0xff] ^ + $S1[$R0 >> 8 & 0xff] ^ + $S2[$R0 >> 16 & 0xff] ^ + $S3[$R0 >> 24 & 0xff]; + $t1 = $S0[$R1 >> 24 & 0xff] ^ + $S1[$R1 & 0xff] ^ + $S2[$R1 >> 8 & 0xff] ^ + $S3[$R1 >> 16 & 0xff]; + $R3^= $t0 + ($t1 << 1) + '.$K[--$ki].'; + $R3 = $R3 >> 1 & 0x7fffffff | $R3 << 31; + $R2 = ($R2 >> 31 & 0x1 | $R2 << 1) ^ ($t0 + $t1 + '.$K[--$ki].'); + + $t0 = $S0[$R2 & 0xff] ^ + $S1[$R2 >> 8 & 0xff] ^ + $S2[$R2 >> 16 & 0xff] ^ + $S3[$R2 >> 24 & 0xff]; + $t1 = $S0[$R3 >> 24 & 0xff] ^ + $S1[$R3 & 0xff] ^ + $S2[$R3 >> 8 & 0xff] ^ + $S3[$R3 >> 16 & 0xff]; + $R1^= $t0 + ($t1 << 1) + '.$K[--$ki].'; + $R1 = $R1 >> 1 & 0x7fffffff | $R1 << 31; + $R0 = ($R0 >> 31 & 0x1 | $R0 << 1) ^ ($t0 + $t1 + '.$K[--$ki].'); + '; + } + $decrypt_block.= ' + $in = pack("V4", '.$K[0].' ^ $R2, + '.$K[1].' ^ $R3, + '.$K[2].' ^ $R0, + '.$K[3].' ^ $R1); + '; + + $lambda_functions[$code_hash] = $this->_createInlineCryptFunction( + array( + 'init_crypt' => $init_crypt, + 'init_encrypt' => '', + 'init_decrypt' => '', + 'encrypt_block' => $encrypt_block, + 'decrypt_block' => $decrypt_block + ) + ); + } + $this->inline_crypt = $lambda_functions[$code_hash]; + } +} diff --git a/lam/lib/3rdParty/phpseclib/Math/BigInteger.php b/lam/lib/3rdParty/phpseclib/Math/BigInteger.php index defe7081..1b4ea675 100644 --- a/lam/lib/3rdParty/phpseclib/Math/BigInteger.php +++ b/lam/lib/3rdParty/phpseclib/Math/BigInteger.php @@ -1,5 +1,4 @@ - * @copyright MMVI Jim Wigginton - * @license http://www.opensource.org/licenses/mit-license.html MIT License - * @version $Id$ - * @link http://pear.php.net/package/Math_BigInteger + * @category Math + * @package Math_BigInteger + * @author Jim Wigginton + * @copyright MMVI Jim Wigginton + * @license http://www.opensource.org/licenses/mit-license.html MIT License + * @link http://pear.php.net/package/Math_BigInteger */ /**#@+ @@ -162,16 +160,6 @@ define('MATH_BIGINTEGER_MODE_BCMATH', 2); define('MATH_BIGINTEGER_MODE_GMP', 3); /**#@-*/ -/** - * The largest digit that may be used in addition / subtraction - * - * (we do pow(2, 52) instead of using 4503599627370496, directly, because some PHP installations - * will truncate 4503599627370496) - * - * @access private - */ -define('MATH_BIGINTEGER_MAX_DIGIT52', pow(2, 52)); - /** * Karatsuba Cutoff * @@ -185,12 +173,13 @@ define('MATH_BIGINTEGER_KARATSUBA_CUTOFF', 25); * Pure-PHP arbitrary precision integer arithmetic library. Supports base-2, base-10, base-16, and base-256 * numbers. * + * @package Math_BigInteger * @author Jim Wigginton * @version 1.0.0RC4 * @access public - * @package Math_BigInteger */ -class Math_BigInteger { +class Math_BigInteger +{ /** * Holds the BigInteger's value. * @@ -232,9 +221,9 @@ class Math_BigInteger { var $bitmask = false; /** - * Mode independant value used for serialization. + * Mode independent value used for serialization. * - * If the bcmath or gmp extensions are installed $this->value will be a non-serializable resource, hence the need for + * If the bcmath or gmp extensions are installed $this->value will be a non-serializable resource, hence the need for * a variable that'll be serializable regardless of whether or not extensions are being used. Unlike $this->value, * however, $this->hex is only calculated when $this->__sleep() is called. * @@ -246,20 +235,20 @@ class Math_BigInteger { var $hex; /** - * Converts base-2, base-10, base-16, and binary strings (eg. base-256) to BigIntegers. + * Converts base-2, base-10, base-16, and binary strings (base-256) to BigIntegers. * * If the second parameter - $base - is negative, then it will be assumed that the number's are encoded using * two's compliment. The sole exception to this is -10, which is treated the same as 10 is. * * Here's an example: * - * toString(); // outputs 50 - * ?> + * ?> * * * @param optional $x base-10 number or base-$base number if $base set. @@ -282,6 +271,67 @@ class Math_BigInteger { } } + if (function_exists('openssl_public_encrypt') && !defined('MATH_BIGINTEGER_OPENSSL_DISABLE') && !defined('MATH_BIGINTEGER_OPENSSL_ENABLED')) { + // some versions of XAMPP have mismatched versions of OpenSSL which causes it not to work + ob_start(); + phpinfo(); + $content = ob_get_contents(); + ob_end_clean(); + + preg_match_all('#OpenSSL (Header|Library) Version(.*)#im', $content, $matches); + + $versions = array(); + if (!empty($matches[1])) { + for ($i = 0; $i < count($matches[1]); $i++) { + $versions[$matches[1][$i]] = trim(str_replace('=>', '', strip_tags($matches[2][$i]))); + } + } + + // it doesn't appear that OpenSSL versions were reported upon until PHP 5.3+ + switch (true) { + case !isset($versions['Header']): + case !isset($versions['Library']): + case $versions['Header'] == $versions['Library']: + define('MATH_BIGINTEGER_OPENSSL_ENABLED', true); + break; + default: + define('MATH_BIGINTEGER_OPENSSL_DISABLE', true); + } + } + + if (!defined('PHP_INT_SIZE')) { + define('PHP_INT_SIZE', 4); + } + + if (!defined('MATH_BIGINTEGER_BASE') && MATH_BIGINTEGER_MODE == MATH_BIGINTEGER_MODE_INTERNAL) { + switch (PHP_INT_SIZE) { + case 8: // use 64-bit integers if int size is 8 bytes + define('MATH_BIGINTEGER_BASE', 31); + define('MATH_BIGINTEGER_BASE_FULL', 0x80000000); + define('MATH_BIGINTEGER_MAX_DIGIT', 0x7FFFFFFF); + define('MATH_BIGINTEGER_MSB', 0x40000000); + // 10**9 is the closest we can get to 2**31 without passing it + define('MATH_BIGINTEGER_MAX10', 1000000000); + define('MATH_BIGINTEGER_MAX10_LEN', 9); + // the largest digit that may be used in addition / subtraction + define('MATH_BIGINTEGER_MAX_DIGIT2', pow(2, 62)); + break; + //case 4: // use 64-bit floats if int size is 4 bytes + default: + define('MATH_BIGINTEGER_BASE', 26); + define('MATH_BIGINTEGER_BASE_FULL', 0x4000000); + define('MATH_BIGINTEGER_MAX_DIGIT', 0x3FFFFFF); + define('MATH_BIGINTEGER_MSB', 0x2000000); + // 10**7 is the closest to 2**26 without passing it + define('MATH_BIGINTEGER_MAX10', 10000000); + define('MATH_BIGINTEGER_MAX10_LEN', 7); + // the largest digit that may be used in addition / subtraction + // we do pow(2, 52) instead of using 4503599627370496 directly because some + // PHP installations will truncate 4503599627370496. + define('MATH_BIGINTEGER_MAX_DIGIT2', pow(2, 52)); + } + } + switch ( MATH_BIGINTEGER_MODE ) { case MATH_BIGINTEGER_MODE_GMP: if (is_resource($x) && get_resource_type($x) == 'GMP integer') { @@ -297,7 +347,9 @@ class Math_BigInteger { $this->value = array(); } - if (empty($x)) { + // '0' counts as empty() but when the base is 256 '0' is equal to ord('0') or 48 + // '0' is the only value like this per http://php.net/empty + if (empty($x) && (abs($base) != 256 || $x !== '0')) { return; } @@ -332,7 +384,7 @@ class Math_BigInteger { // converts a base-2**8 (big endian / msb) number to base-2**26 (little endian / lsb) default: while (strlen($x)) { - $this->value[] = $this->_bytes2int($this->_base256_rshift($x, 26)); + $this->value[] = $this->_bytes2int($this->_base256_rshift($x, MATH_BIGINTEGER_BASE)); } } @@ -384,7 +436,10 @@ class Math_BigInteger { break; case 10: case -10: - $x = preg_replace('#^(-?[0-9]*).*#', '$1', $x); + // (?value = (string) $x; + $this->value = $x === '-' ? '0' : (string) $x; break; default: $temp = new Math_BigInteger(); - // array(10000000) is 10**7 in base-2**26. 10**7 is the closest to 2**26 we can get without passing it. $multiplier = new Math_BigInteger(); - $multiplier->value = array(10000000); + $multiplier->value = array(MATH_BIGINTEGER_MAX10); if ($x[0] == '-') { $this->is_negative = true; $x = substr($x, 1); } - $x = str_pad($x, strlen($x) + (6 * strlen($x)) % 7, 0, STR_PAD_LEFT); - + $x = str_pad($x, strlen($x) + ((MATH_BIGINTEGER_MAX10_LEN - 1) * strlen($x)) % MATH_BIGINTEGER_MAX10_LEN, 0, STR_PAD_LEFT); while (strlen($x)) { $temp = $temp->multiply($multiplier); - $temp = $temp->add(new Math_BigInteger($this->_int2bytes(substr($x, 0, 7)), 256)); - $x = substr($x, 7); + $temp = $temp->add(new Math_BigInteger($this->_int2bytes(substr($x, 0, MATH_BIGINTEGER_MAX10_LEN)), 256)); + $x = substr($x, MATH_BIGINTEGER_MAX10_LEN); } $this->value = $temp->value; @@ -537,7 +590,7 @@ class Math_BigInteger { $temp = $this->copy(); for ($i = count($temp->value) - 2; $i >= 0; --$i) { - $temp->_base256_lshift($result, 26); + $temp->_base256_lshift($result, MATH_BIGINTEGER_BASE); $result = $result | str_pad($temp->_int2bytes($temp->value[$i]), strlen($result), chr(0), STR_PAD_LEFT); } @@ -599,13 +652,19 @@ class Math_BigInteger { { $hex = $this->toHex($twos_compliment); $bits = ''; - for ($i = 0, $end = strlen($hex) & 0xFFFFFFF8; $i < $end; $i+=8) { - $bits.= str_pad(decbin(hexdec(substr($hex, $i, 8))), 32, '0', STR_PAD_LEFT); + for ($i = strlen($hex) - 8, $start = strlen($hex) & 7; $i >= $start; $i-=8) { + $bits = str_pad(decbin(hexdec(substr($hex, $i, 8))), 32, '0', STR_PAD_LEFT) . $bits; } - if ($end != strlen($hex)) { // hexdec('') == 0 - $bits.= str_pad(decbin(hexdec(substr($hex, $end))), strlen($hex) & 7, '0', STR_PAD_LEFT); + if ($start) { // hexdec('') == 0 + $bits = str_pad(decbin(hexdec(substr($hex, 0, $start))), 8, '0', STR_PAD_LEFT) . $bits; } - return $this->precision > 0 ? substr($bits, -$this->precision) : ltrim($bits, '0'); + $result = $this->precision > 0 ? substr($bits, -$this->precision) : ltrim($bits, '0'); + + if ($twos_compliment && $this->compare(new Math_BigInteger()) > 0 && $this->precision <= 0) { + return '0' . $result; + } + + return $result; } /** @@ -647,11 +706,11 @@ class Math_BigInteger { $temp->is_negative = false; $divisor = new Math_BigInteger(); - $divisor->value = array(10000000); // eg. 10**7 + $divisor->value = array(MATH_BIGINTEGER_MAX10); $result = ''; while (count($temp->value)) { list($temp, $mod) = $temp->divide($divisor); - $result = str_pad(isset($mod->value[0]) ? $mod->value[0] : '', 7, '0', STR_PAD_LEFT) . $result; + $result = str_pad(isset($mod->value[0]) ? $mod->value[0] : '', MATH_BIGINTEGER_MAX10_LEN, '0', STR_PAD_LEFT) . $result; } $result = ltrim($result, '0'); if (empty($result)) { @@ -738,7 +797,7 @@ class Math_BigInteger { $vars[] = 'precision'; } return $vars; - + } /** @@ -862,25 +921,25 @@ class Math_BigInteger { $carry = 0; for ($i = 0, $j = 1; $j < $size; $i+=2, $j+=2) { - $sum = $x_value[$j] * 0x4000000 + $x_value[$i] + $y_value[$j] * 0x4000000 + $y_value[$i] + $carry; - $carry = $sum >= MATH_BIGINTEGER_MAX_DIGIT52; // eg. floor($sum / 2**52); only possible values (in any base) are 0 and 1 - $sum = $carry ? $sum - MATH_BIGINTEGER_MAX_DIGIT52 : $sum; + $sum = $x_value[$j] * MATH_BIGINTEGER_BASE_FULL + $x_value[$i] + $y_value[$j] * MATH_BIGINTEGER_BASE_FULL + $y_value[$i] + $carry; + $carry = $sum >= MATH_BIGINTEGER_MAX_DIGIT2; // eg. floor($sum / 2**52); only possible values (in any base) are 0 and 1 + $sum = $carry ? $sum - MATH_BIGINTEGER_MAX_DIGIT2 : $sum; - $temp = (int) ($sum / 0x4000000); + $temp = (int) ($sum / MATH_BIGINTEGER_BASE_FULL); - $value[$i] = (int) ($sum - 0x4000000 * $temp); // eg. a faster alternative to fmod($sum, 0x4000000) + $value[$i] = (int) ($sum - MATH_BIGINTEGER_BASE_FULL * $temp); // eg. a faster alternative to fmod($sum, 0x4000000) $value[$j] = $temp; } if ($j == $size) { // ie. if $y_size is odd $sum = $x_value[$i] + $y_value[$i] + $carry; - $carry = $sum >= 0x4000000; - $value[$i] = $carry ? $sum - 0x4000000 : $sum; + $carry = $sum >= MATH_BIGINTEGER_BASE_FULL; + $value[$i] = $carry ? $sum - MATH_BIGINTEGER_BASE_FULL : $sum; ++$i; // ie. let $i = $j since we've just done $value[$i] } if ($carry) { - for (; $value[$i] == 0x3FFFFFF; ++$i) { + for (; $value[$i] == MATH_BIGINTEGER_MAX_DIGIT; ++$i) { $value[$i] = 0; } ++$value[$i]; @@ -998,26 +1057,26 @@ class Math_BigInteger { $carry = 0; for ($i = 0, $j = 1; $j < $y_size; $i+=2, $j+=2) { - $sum = $x_value[$j] * 0x4000000 + $x_value[$i] - $y_value[$j] * 0x4000000 - $y_value[$i] - $carry; + $sum = $x_value[$j] * MATH_BIGINTEGER_BASE_FULL + $x_value[$i] - $y_value[$j] * MATH_BIGINTEGER_BASE_FULL - $y_value[$i] - $carry; $carry = $sum < 0; // eg. floor($sum / 2**52); only possible values (in any base) are 0 and 1 - $sum = $carry ? $sum + MATH_BIGINTEGER_MAX_DIGIT52 : $sum; + $sum = $carry ? $sum + MATH_BIGINTEGER_MAX_DIGIT2 : $sum; - $temp = (int) ($sum / 0x4000000); + $temp = (int) ($sum / MATH_BIGINTEGER_BASE_FULL); - $x_value[$i] = (int) ($sum - 0x4000000 * $temp); + $x_value[$i] = (int) ($sum - MATH_BIGINTEGER_BASE_FULL * $temp); $x_value[$j] = $temp; } if ($j == $y_size) { // ie. if $y_size is odd $sum = $x_value[$i] - $y_value[$i] - $carry; $carry = $sum < 0; - $x_value[$i] = $carry ? $sum + 0x4000000 : $sum; + $x_value[$i] = $carry ? $sum + MATH_BIGINTEGER_BASE_FULL : $sum; ++$i; } if ($carry) { for (; !$x_value[$i]; ++$i) { - $x_value[$i] = 0x3FFFFFF; + $x_value[$i] = MATH_BIGINTEGER_MAX_DIGIT; } --$x_value[$i]; } @@ -1150,8 +1209,8 @@ class Math_BigInteger { for ($j = 0; $j < $x_length; ++$j) { // ie. $i = 0 $temp = $x_value[$j] * $y_value[0] + $carry; // $product_value[$k] == 0 - $carry = (int) ($temp / 0x4000000); - $product_value[$j] = (int) ($temp - 0x4000000 * $carry); + $carry = (int) ($temp / MATH_BIGINTEGER_BASE_FULL); + $product_value[$j] = (int) ($temp - MATH_BIGINTEGER_BASE_FULL * $carry); } $product_value[$j] = $carry; @@ -1163,8 +1222,8 @@ class Math_BigInteger { for ($j = 0, $k = $i; $j < $x_length; ++$j, ++$k) { $temp = $product_value[$k] + $x_value[$j] * $y_value[$i] + $carry; - $carry = (int) ($temp / 0x4000000); - $product_value[$k] = (int) ($temp - 0x4000000 * $carry); + $carry = (int) ($temp / MATH_BIGINTEGER_BASE_FULL); + $product_value[$k] = (int) ($temp - MATH_BIGINTEGER_BASE_FULL * $carry); } $product_value[$k] = $carry; @@ -1251,14 +1310,14 @@ class Math_BigInteger { $i2 = $i << 1; $temp = $square_value[$i2] + $value[$i] * $value[$i]; - $carry = (int) ($temp / 0x4000000); - $square_value[$i2] = (int) ($temp - 0x4000000 * $carry); + $carry = (int) ($temp / MATH_BIGINTEGER_BASE_FULL); + $square_value[$i2] = (int) ($temp - MATH_BIGINTEGER_BASE_FULL * $carry); // note how we start from $i+1 instead of 0 as we do in multiplication. for ($j = $i + 1, $k = $i2 + 1; $j <= $max_index; ++$j, ++$k) { $temp = $square_value[$k] + 2 * $value[$j] * $value[$i] + $carry; - $carry = (int) ($temp / 0x4000000); - $square_value[$k] = (int) ($temp - 0x4000000 * $carry); + $carry = (int) ($temp / MATH_BIGINTEGER_BASE_FULL); + $square_value[$k] = (int) ($temp - MATH_BIGINTEGER_BASE_FULL * $carry); } // the following line can yield values larger 2**15. at this point, PHP should switch @@ -1406,7 +1465,7 @@ class Math_BigInteger { // normalize $x and $y as described in HAC 14.23 / 14.24 $msb = $y->value[count($y->value) - 1]; - for ($shift = 0; !($msb & 0x2000000); ++$shift) { + for ($shift = 0; !($msb & MATH_BIGINTEGER_MSB); ++$shift) { $msb <<= 1; } $x->_lshift($shift); @@ -1453,10 +1512,10 @@ class Math_BigInteger { $q_index = $i - $y_max - 1; if ($x_window[0] == $y_window[0]) { - $quotient_value[$q_index] = 0x3FFFFFF; + $quotient_value[$q_index] = MATH_BIGINTEGER_MAX_DIGIT; } else { $quotient_value[$q_index] = (int) ( - ($x_window[0] * 0x4000000 + $x_window[1]) + ($x_window[0] * MATH_BIGINTEGER_BASE_FULL + $x_window[1]) / $y_window[0] ); @@ -1524,7 +1583,7 @@ class Math_BigInteger { $result = array(); for ($i = count($dividend) - 1; $i >= 0; --$i) { - $temp = 0x4000000 * $carry + $dividend[$i]; + $temp = MATH_BIGINTEGER_BASE_FULL * $carry + $dividend[$i]; $result[$i] = (int) ($temp / $divisor); $carry = (int) ($temp - $divisor * $result[$i]); } @@ -1589,13 +1648,54 @@ class Math_BigInteger { return $this->_normalize($temp->modPow($e, $n)); } - switch ( MATH_BIGINTEGER_MODE ) { - case MATH_BIGINTEGER_MODE_GMP: - $temp = new Math_BigInteger(); - $temp->value = gmp_powm($this->value, $e->value, $n->value); + if ( MATH_BIGINTEGER_MODE == MATH_BIGINTEGER_MODE_GMP ) { + $temp = new Math_BigInteger(); + $temp->value = gmp_powm($this->value, $e->value, $n->value); - return $this->_normalize($temp); - case MATH_BIGINTEGER_MODE_BCMATH: + return $this->_normalize($temp); + } + + if ($this->compare(new Math_BigInteger()) < 0 || $this->compare($n) > 0) { + list(, $temp) = $this->divide($n); + return $temp->modPow($e, $n); + } + + if (defined('MATH_BIGINTEGER_OPENSSL_ENABLED')) { + $components = array( + 'modulus' => $n->toBytes(true), + 'publicExponent' => $e->toBytes(true) + ); + + $components = array( + 'modulus' => pack('Ca*a*', 2, $this->_encodeASN1Length(strlen($components['modulus'])), $components['modulus']), + 'publicExponent' => pack('Ca*a*', 2, $this->_encodeASN1Length(strlen($components['publicExponent'])), $components['publicExponent']) + ); + + $RSAPublicKey = pack('Ca*a*a*', + 48, $this->_encodeASN1Length(strlen($components['modulus']) + strlen($components['publicExponent'])), + $components['modulus'], $components['publicExponent'] + ); + + $rsaOID = pack('H*', '300d06092a864886f70d0101010500'); // hex version of MA0GCSqGSIb3DQEBAQUA + $RSAPublicKey = chr(0) . $RSAPublicKey; + $RSAPublicKey = chr(3) . $this->_encodeASN1Length(strlen($RSAPublicKey)) . $RSAPublicKey; + + $encapsulated = pack('Ca*a*', + 48, $this->_encodeASN1Length(strlen($rsaOID . $RSAPublicKey)), $rsaOID . $RSAPublicKey + ); + + $RSAPublicKey = "-----BEGIN PUBLIC KEY-----\r\n" . + chunk_split(base64_encode($encapsulated)) . + '-----END PUBLIC KEY-----'; + + $plaintext = str_pad($this->toBytes(), strlen($n->toBytes(true)) - 1, "\0", STR_PAD_LEFT); + + if (openssl_public_encrypt($plaintext, $result, $RSAPublicKey, OPENSSL_NO_PADDING)) { + return new Math_BigInteger($result, 256); + } + } + + if ( MATH_BIGINTEGER_MODE == MATH_BIGINTEGER_MODE_BCMATH ) { $temp = new Math_BigInteger(); $temp->value = bcpowmod($this->value, $e->value, $n->value, 0); @@ -1701,7 +1801,7 @@ class Math_BigInteger { $e_length = count($e_value) - 1; $e_bits = decbin($e_value[$e_length]); for ($i = $e_length - 1; $i >= 0; --$i) { - $e_bits.= str_pad(decbin($e_value[$i]), 26, '0', STR_PAD_LEFT); + $e_bits.= str_pad(decbin($e_value[$i]), MATH_BIGINTEGER_BASE, '0', STR_PAD_LEFT); } $e_length = strlen($e_bits); @@ -2036,7 +2136,7 @@ class Math_BigInteger { if ($this->_compare($result, false, $temp[MATH_BIGINTEGER_VALUE], $temp[MATH_BIGINTEGER_SIGN]) < 0) { $corrector_value = $this->_array_repeat(0, $n_length + 1); $corrector_value[] = 1; - $result = $this->_add($result, false, $corrector, false); + $result = $this->_add($result, false, $corrector_value, false); $result = $result[MATH_BIGINTEGER_VALUE]; } @@ -2059,6 +2159,7 @@ class Math_BigInteger { * @param Boolean $x_negative * @param Array $y_value * @param Boolean $y_negative + * @param Integer $stop * @return Array * @access private */ @@ -2095,8 +2196,8 @@ class Math_BigInteger { for ($j = 0; $j < $x_length; ++$j) { // ie. $i = 0, $k = $i $temp = $x_value[$j] * $y_value[0] + $carry; // $product_value[$k] == 0 - $carry = (int) ($temp / 0x4000000); - $product_value[$j] = (int) ($temp - 0x4000000 * $carry); + $carry = (int) ($temp / MATH_BIGINTEGER_BASE_FULL); + $product_value[$j] = (int) ($temp - MATH_BIGINTEGER_BASE_FULL * $carry); } if ($j < $stop) { @@ -2111,8 +2212,8 @@ class Math_BigInteger { for ($j = 0, $k = $i; $j < $x_length && $k < $stop; ++$j, ++$k) { $temp = $product_value[$k] + $x_value[$j] * $y_value[$i] + $carry; - $carry = (int) ($temp / 0x4000000); - $product_value[$k] = (int) ($temp - 0x4000000 * $carry); + $carry = (int) ($temp / MATH_BIGINTEGER_BASE_FULL); + $product_value[$k] = (int) ($temp - MATH_BIGINTEGER_BASE_FULL * $carry); } if ($k < $stop) { @@ -2160,7 +2261,7 @@ class Math_BigInteger { for ($i = 0; $i < $k; ++$i) { $temp = $result[MATH_BIGINTEGER_VALUE][$i] * $cache[MATH_BIGINTEGER_DATA][$key]; - $temp = (int) ($temp - 0x4000000 * ((int) ($temp / 0x4000000))); + $temp = (int) ($temp - MATH_BIGINTEGER_BASE_FULL * ((int) ($temp / MATH_BIGINTEGER_BASE_FULL))); $temp = $this->_regularMultiply(array($temp), $n); $temp = array_merge($this->_array_repeat(0, $i), $temp); $result = $this->_add($result[MATH_BIGINTEGER_VALUE], false, $temp, false); @@ -2178,7 +2279,7 @@ class Math_BigInteger { /** * Montgomery Multiply * - * Interleaves the montgomery reduction and long multiplication algorithms together as described in + * Interleaves the montgomery reduction and long multiplication algorithms together as described in * {@link http://www.cacr.math.uwaterloo.ca/hac/about/chap14.pdf#page=13 HAC 14.36} * * @see _prepMontgomery() @@ -2212,9 +2313,9 @@ class Math_BigInteger { $a = array(MATH_BIGINTEGER_VALUE => $this->_array_repeat(0, $n + 1)); for ($i = 0; $i < $n; ++$i) { $temp = $a[MATH_BIGINTEGER_VALUE][0] + $x[$i] * $y[0]; - $temp = (int) ($temp - 0x4000000 * ((int) ($temp / 0x4000000))); + $temp = (int) ($temp - MATH_BIGINTEGER_BASE_FULL * ((int) ($temp / MATH_BIGINTEGER_BASE_FULL))); $temp = $temp * $cache[MATH_BIGINTEGER_DATA][$key]; - $temp = (int) ($temp - 0x4000000 * ((int) ($temp / 0x4000000))); + $temp = (int) ($temp - MATH_BIGINTEGER_BASE_FULL * ((int) ($temp / MATH_BIGINTEGER_BASE_FULL))); $temp = $this->_add($this->_regularMultiply(array($x[$i]), $y), false, $this->_regularMultiply(array($temp), $m), false); $a = $this->_add($a[MATH_BIGINTEGER_VALUE], false, $temp[MATH_BIGINTEGER_VALUE], false); $a[MATH_BIGINTEGER_VALUE] = array_slice($a[MATH_BIGINTEGER_VALUE], 1); @@ -2258,7 +2359,7 @@ class Math_BigInteger { * {@link http://groups.google.com/group/sci.crypt/msg/7a137205c1be7d85} * * As for why we do all the bitmasking... strange things can happen when converting from floats to ints. For - * instance, on some computers, var_dump((int) -4294967297) yields int(-1) and on others, it yields + * instance, on some computers, var_dump((int) -4294967297) yields int(-1) and on others, it yields * int(-2147483648). To avoid problems stemming from this, we use bitmasks to guarantee that ints aren't * auto-converted to floats. The outermost bitmask is present because without it, there's no guarantee that * the "residue" returned would be the so-called "common residue". We use fmod, in the last step, because the @@ -2272,15 +2373,15 @@ class Math_BigInteger { * @param Array $x * @return Integer */ - function _modInverse67108864($x) // 2**26 == 67108864 + function _modInverse67108864($x) // 2**26 == 67,108,864 { $x = -$x[0]; $result = $x & 0x3; // x**-1 mod 2**2 $result = ($result * (2 - $x * $result)) & 0xF; // x**-1 mod 2**4 $result = ($result * (2 - ($x & 0xFF) * $result)) & 0xFF; // x**-1 mod 2**8 $result = ($result * ((2 - ($x & 0xFFFF) * $result) & 0xFFFF)) & 0xFFFF; // x**-1 mod 2**16 - $result = fmod($result * (2 - fmod($x * $result, 0x4000000)), 0x4000000); // x**-1 mod 2**26 - return $result & 0x3FFFFFF; + $result = fmod($result * (2 - fmod($x * $result, MATH_BIGINTEGER_BASE_FULL)), MATH_BIGINTEGER_BASE_FULL); // x**-1 mod 2**26 + return $result & MATH_BIGINTEGER_MAX_DIGIT; } /** @@ -2328,13 +2429,13 @@ class Math_BigInteger { $one = new Math_BigInteger(1); } - // $x mod $n == $x mod -$n. + // $x mod -$n == $x mod $n. $n = $n->abs(); if ($this->compare($zero) < 0) { $temp = $this->abs(); $temp = $temp->modInverse($n); - return $negated === false ? false : $this->_normalize($n->subtract($temp)); + return $this->_normalize($n->subtract($temp)); } extract($this->extendedGCD($n)); @@ -2349,12 +2450,12 @@ class Math_BigInteger { } /** - * Calculates the greatest common divisor and Bézout's identity. + * Calculates the greatest common divisor and Bezout's identity. * - * Say you have 693 and 609. The GCD is 21. Bézout's identity states that there exist integers x and y such that + * Say you have 693 and 609. The GCD is 21. Bezout's identity states that there exist integers x and y such that * 693*x + 609*y == 21. In point of fact, there are actually an infinite number of x and y combinations and which * combination is returned is dependant upon which mode is in use. See - * {@link http://en.wikipedia.org/wiki/B%C3%A9zout%27s_identity Bézout's identity - Wikipedia} for more information. + * {@link http://en.wikipedia.org/wiki/B%C3%A9zout%27s_identity Bezout's identity - Wikipedia} for more information. * * Here's an example: * @@ -2551,8 +2652,8 @@ class Math_BigInteger { * * Note how the same comparison operator is used. If you want to test for equality, use $x->equals($y). * - * @param Math_BigInteger $x - * @return Integer < 0 if $this is less than $x; > 0 if $this is greater than $x, and 0 if they are equal. + * @param Math_BigInteger $y + * @return Integer < 0 if $this is less than $y; > 0 if $this is greater than $y, and 0 if they are equal. * @access public * @see equals() * @internal Could return $this->subtract($x), but that's not as fast as what we do do. @@ -2631,9 +2732,8 @@ class Math_BigInteger { * Some bitwise operations give different results depending on the precision being used. Examples include left * shift, not, and rotates. * - * @param Math_BigInteger $x + * @param Integer $bits * @access public - * @return Math_BigInteger */ function setPrecision($bits) { @@ -2683,7 +2783,7 @@ class Math_BigInteger { $result->value = array_slice($result->value, 0, $length); for ($i = 0; $i < $length; ++$i) { - $result->value[$i] = $result->value[$i] & $x->value[$i]; + $result->value[$i]&= $x->value[$i]; } return $this->_normalize($result); @@ -2719,11 +2819,11 @@ class Math_BigInteger { $length = max(count($this->value), count($x->value)); $result = $this->copy(); - $result->value = array_pad($result->value, 0, $length); - $x->value = array_pad($x->value, 0, $length); + $result->value = array_pad($result->value, $length, 0); + $x->value = array_pad($x->value, $length, 0); for ($i = 0; $i < $length; ++$i) { - $result->value[$i] = $this->value[$i] | $x->value[$i]; + $result->value[$i]|= $x->value[$i]; } return $this->_normalize($result); @@ -2759,11 +2859,11 @@ class Math_BigInteger { $length = max(count($this->value), count($x->value)); $result = $this->copy(); - $result->value = array_pad($result->value, 0, $length); - $x->value = array_pad($x->value, 0, $length); + $result->value = array_pad($result->value, $length, 0); + $x->value = array_pad($x->value, $length, 0); for ($i = 0; $i < $length; ++$i) { - $result->value[$i] = $this->value[$i] ^ $x->value[$i]; + $result->value[$i]^= $x->value[$i]; } return $this->_normalize($result); @@ -2942,20 +3042,44 @@ class Math_BigInteger { /** * Set random number generator function * - * $generator should be the name of a random generating function whose first parameter is the minimum - * value and whose second parameter is the maximum value. If this function needs to be seeded, it should - * be seeded prior to calling Math_BigInteger::random() or Math_BigInteger::randomPrime() + * This function is deprecated. * - * If the random generating function is not explicitly set, it'll be assumed to be mt_rand(). - * - * @see random() - * @see randomPrime() - * @param optional String $generator + * @param String $generator * @access public */ function setRandomGenerator($generator) { - $this->generator = $generator; + } + + /** + * Generates a random BigInteger + * + * Byte length is equal to $length. Uses crypt_random if it's loaded and mt_rand if it's not. + * + * @param Integer $length + * @return Math_BigInteger + * @access private + */ + function _random_number_helper($size) + { + $crypt_random = function_exists('crypt_random_string') || (!class_exists('Crypt_Random') && function_exists('crypt_random_string')); + if ($crypt_random) { + $random = crypt_random_string($size); + } else { + $random = ''; + + if ($size & 1) { + $random.= chr(mt_rand(0, 255)); + } + + $blocks = $size >> 1; + for ($i = 0; $i < $blocks; ++$i) { + // mt_rand(-2147483648, 0x7FFFFFFF) always produces -2147483648 on some systems + $random.= pack('n', mt_rand(0, 0xFFFF)); + } + } + + return new Math_BigInteger($random, 256); } /** @@ -2987,32 +3111,45 @@ class Math_BigInteger { $min = $temp; } - $generator = $this->generator; - - $max = $max->subtract($min); - $max = ltrim($max->toBytes(), chr(0)); - $size = strlen($max) - 1; - $random = ''; - - $bytes = $size & 1; - for ($i = 0; $i < $bytes; ++$i) { - $random.= chr($generator(0, 255)); + static $one; + if (!isset($one)) { + $one = new Math_BigInteger(1); } - $blocks = $size >> 1; - for ($i = 0; $i < $blocks; ++$i) { - // mt_rand(-2147483648, 0x7FFFFFFF) always produces -2147483648 on some systems - $random.= pack('n', $generator(0, 0xFFFF)); - } + $max = $max->subtract($min->subtract($one)); + $size = strlen(ltrim($max->toBytes(), chr(0))); - $temp = new Math_BigInteger($random, 256); - if ($temp->compare(new Math_BigInteger(substr($max, 1), 256)) > 0) { - $random = chr($generator(0, ord($max[0]) - 1)) . $random; - } else { - $random = chr($generator(0, ord($max[0]) )) . $random; - } + /* + doing $random % $max doesn't work because some numbers will be more likely to occur than others. + eg. if $max is 140 and $random's max is 255 then that'd mean both $random = 5 and $random = 145 + would produce 5 whereas the only value of random that could produce 139 would be 139. ie. + not all numbers would be equally likely. some would be more likely than others. - $random = new Math_BigInteger($random, 256); + creating a whole new random number until you find one that is within the range doesn't work + because, for sufficiently small ranges, the likelihood that you'd get a number within that range + would be pretty small. eg. with $random's max being 255 and if your $max being 1 the probability + would be pretty high that $random would be greater than $max. + + phpseclib works around this using the technique described here: + + http://crypto.stackexchange.com/questions/5708/creating-a-small-number-from-a-cryptographically-secure-random-string + */ + $random_max = new Math_BigInteger(chr(1) . str_repeat("\0", $size), 256); + $random = $this->_random_number_helper($size); + + list($max_multiple) = $random_max->divide($max); + $max_multiple = $max_multiple->multiply($max); + + while ($random->compare($max_multiple) >= 0) { + $random = $random->subtract($max_multiple); + $random_max = $random_max->subtract($max_multiple); + $random = $random->bitwise_leftShift(8); + $random = $random->add($this->_random_number_helper(1)); + $random_max = $random_max->bitwise_leftShift(8); + list($max_multiple) = $random_max->divide($max); + $max_multiple = $max_multiple->multiply($max); + } + list(, $random) = $random->divide($max); return $this->_normalize($random->add($min)); } @@ -3032,10 +3169,18 @@ class Math_BigInteger { */ function randomPrime($min = false, $max = false, $timeout = false) { + if ($min === false) { + $min = new Math_BigInteger(0); + } + + if ($max === false) { + $max = new Math_BigInteger(0x7FFFFFFF); + } + $compare = $max->compare($min); if (!$compare) { - return $min; + return $min->isPrime() ? $min : false; } else if ($compare < 0) { // if $min is bigger then $max, swap $min and $max $temp = $max; @@ -3043,36 +3188,6 @@ class Math_BigInteger { $min = $temp; } - // gmp_nextprime() requires PHP 5 >= 5.2.0 per . - if ( MATH_BIGINTEGER_MODE == MATH_BIGINTEGER_MODE_GMP && function_exists('gmp_nextprime') ) { - // we don't rely on Math_BigInteger::random()'s min / max when gmp_nextprime() is being used since this function - // does its own checks on $max / $min when gmp_nextprime() is used. When gmp_nextprime() is not used, however, - // the same $max / $min checks are not performed. - if ($min === false) { - $min = new Math_BigInteger(0); - } - - if ($max === false) { - $max = new Math_BigInteger(0x7FFFFFFF); - } - - $x = $this->random($min, $max); - - $x->value = gmp_nextprime($x->value); - - if ($x->compare($max) <= 0) { - return $x; - } - - $x->value = gmp_nextprime($min->value); - - if ($x->compare($max) <= 0) { - return $x; - } - - return false; - } - static $one, $two; if (!isset($one)) { $one = new Math_BigInteger(1); @@ -3082,6 +3197,23 @@ class Math_BigInteger { $start = time(); $x = $this->random($min, $max); + + // gmp_nextprime() requires PHP 5 >= 5.2.0 per . + if ( MATH_BIGINTEGER_MODE == MATH_BIGINTEGER_MODE_GMP && function_exists('gmp_nextprime') ) { + $p = new Math_BigInteger(); + $p->value = gmp_nextprime($x->value); + + if ($p->compare($max) <= 0) { + return $p; + } + + if (!$min->equals($x)) { + $x = $x->subtract($one); + } + + return $x->randomPrime($min, $x); + } + if ($x->equals($two)) { return $x; } @@ -3158,7 +3290,7 @@ class Math_BigInteger { * @return Boolean * @access public * @internal Uses the - * {@link http://en.wikipedia.org/wiki/Miller%E2%80%93Rabin_primality_test Miller-Rabin primality test}. See + * {@link http://en.wikipedia.org/wiki/Miller%E2%80%93Rabin_primality_test Miller-Rabin primality test}. See * {@link http://www.cacr.math.uwaterloo.ca/hac/about/chap4.pdf#page=8 HAC 4.24}. */ function isPrime($t = false) @@ -3167,6 +3299,7 @@ class Math_BigInteger { if (!$t) { // see HAC 4.49 "Note (controlling the error probability)" + // @codingStandardsIgnoreStart if ($length >= 163) { $t = 2; } // floor(1300 / 8) else if ($length >= 106) { $t = 3; } // floor( 850 / 8) else if ($length >= 81 ) { $t = 4; } // floor( 650 / 8) @@ -3179,6 +3312,7 @@ class Math_BigInteger { else if ($length >= 25 ) { $t = 15; } // floor( 200 / 8) else if ($length >= 18 ) { $t = 18; } // floor( 150 / 8) else { $t = 27; } + // @codingStandardsIgnoreEnd } // ie. gmp_testbit($this, 0) @@ -3207,16 +3341,16 @@ class Math_BigInteger { if (!isset($primes)) { $primes = array( - 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, - 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, - 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 211, 223, 227, - 229, 233, 239, 241, 251, 257, 263, 269, 271, 277, 281, 283, 293, 307, 311, 313, - 317, 331, 337, 347, 349, 353, 359, 367, 373, 379, 383, 389, 397, 401, 409, 419, - 421, 431, 433, 439, 443, 449, 457, 461, 463, 467, 479, 487, 491, 499, 503, 509, - 521, 523, 541, 547, 557, 563, 569, 571, 577, 587, 593, 599, 601, 607, 613, 617, - 619, 631, 641, 643, 647, 653, 659, 661, 673, 677, 683, 691, 701, 709, 719, 727, - 733, 739, 743, 751, 757, 761, 769, 773, 787, 797, 809, 811, 821, 823, 827, 829, - 839, 853, 857, 859, 863, 877, 881, 883, 887, 907, 911, 919, 929, 937, 941, 947, + 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, + 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, + 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 211, 223, 227, + 229, 233, 239, 241, 251, 257, 263, 269, 271, 277, 281, 283, 293, 307, 311, 313, + 317, 331, 337, 347, 349, 353, 359, 367, 373, 379, 383, 389, 397, 401, 409, 419, + 421, 431, 433, 439, 443, 449, 457, 461, 463, 467, 479, 487, 491, 499, 503, 509, + 521, 523, 541, 547, 557, 563, 569, 571, 577, 587, 593, 599, 601, 607, 613, 617, + 619, 631, 641, 643, 647, 653, 659, 661, 673, 677, 683, 691, 701, 709, 719, 727, + 733, 739, 743, 751, 757, 761, 769, 773, 787, 797, 809, 811, 821, 823, 827, 829, + 839, 853, 857, 859, 863, 877, 881, 883, 887, 907, 911, 919, 929, 937, 941, 947, 953, 967, 971, 977, 983, 991, 997 ); @@ -3313,16 +3447,16 @@ class Math_BigInteger { return; } - $num_digits = (int) ($shift / 26); - $shift %= 26; + $num_digits = (int) ($shift / MATH_BIGINTEGER_BASE); + $shift %= MATH_BIGINTEGER_BASE; $shift = 1 << $shift; $carry = 0; for ($i = 0; $i < count($this->value); ++$i) { $temp = $this->value[$i] * $shift + $carry; - $carry = (int) ($temp / 0x4000000); - $this->value[$i] = (int) ($temp - $carry * 0x4000000); + $carry = (int) ($temp / MATH_BIGINTEGER_BASE_FULL); + $this->value[$i] = (int) ($temp - $carry * MATH_BIGINTEGER_BASE_FULL); } if ( $carry ) { @@ -3348,9 +3482,9 @@ class Math_BigInteger { return; } - $num_digits = (int) ($shift / 26); - $shift %= 26; - $carry_shift = 26 - $shift; + $num_digits = (int) ($shift / MATH_BIGINTEGER_BASE); + $shift %= MATH_BIGINTEGER_BASE; + $carry_shift = MATH_BIGINTEGER_BASE - $shift; $carry_mask = (1 << $shift) - 1; if ( $num_digits ) { @@ -3423,6 +3557,7 @@ class Math_BigInteger { * * Removes leading zeros * + * @param Array $value * @return Math_BigInteger * @access private */ @@ -3548,4 +3683,24 @@ class Math_BigInteger { $temp = unpack('Nint', str_pad($x, 4, chr(0), STR_PAD_LEFT)); return $temp['int']; } -} \ No newline at end of file + + /** + * DER-encode an integer + * + * The ability to DER-encode integers is needed to create RSA public keys for use with OpenSSL + * + * @see modPow() + * @access private + * @param Integer $length + * @return String + */ + function _encodeASN1Length($length) + { + if ($length <= 0x7F) { + return chr($length); + } + + $temp = ltrim(pack('N', $length), chr(0)); + return pack('Ca*', 0x80 | strlen($temp), $temp); + } +} diff --git a/lam/lib/3rdParty/phpseclib/Net/SCP.php b/lam/lib/3rdParty/phpseclib/Net/SCP.php new file mode 100644 index 00000000..cab91d7e --- /dev/null +++ b/lam/lib/3rdParty/phpseclib/Net/SCP.php @@ -0,0 +1,362 @@ + + * login('username', 'password')) { + * exit('bad login'); + * } + + * $scp = new Net_SCP($ssh); + * $scp->put('abcd', str_repeat('x', 1024*1024)); + * ?> + * + * + * LICENSE: Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + * @category Net + * @package Net_SCP + * @author Jim Wigginton + * @copyright MMX Jim Wigginton + * @license http://www.opensource.org/licenses/mit-license.html MIT License + * @link http://phpseclib.sourceforge.net + */ + +/**#@+ + * @access public + * @see Net_SCP::put() + */ +/** + * Reads data from a local file. + */ +define('NET_SCP_LOCAL_FILE', 1); +/** + * Reads data from a string. + */ +define('NET_SCP_STRING', 2); +/**#@-*/ + +/**#@+ + * @access private + * @see Net_SCP::_send() + * @see Net_SCP::_receive() + */ +/** + * SSH1 is being used. + */ +define('NET_SCP_SSH1', 1); +/** + * SSH2 is being used. + */ +define('NET_SCP_SSH2', 2); +/**#@-*/ + +/** + * Pure-PHP implementations of SCP. + * + * @package Net_SCP + * @author Jim Wigginton + * @version 0.1.0 + * @access public + */ +class Net_SCP +{ + /** + * SSH Object + * + * @var Object + * @access private + */ + var $ssh; + + /** + * Packet Size + * + * @var Integer + * @access private + */ + var $packet_size; + + /** + * Mode + * + * @var Integer + * @access private + */ + var $mode; + + /** + * Default Constructor. + * + * Connects to an SSH server + * + * @param String $host + * @param optional Integer $port + * @param optional Integer $timeout + * @return Net_SCP + * @access public + */ + function Net_SCP($ssh) + { + if (!is_object($ssh)) { + return; + } + + switch (strtolower(get_class($ssh))) { + case'net_ssh2': + $this->mode = NET_SCP_SSH2; + break; + case 'net_ssh1': + $this->packet_size = 50000; + $this->mode = NET_SCP_SSH1; + break; + default: + return; + } + + $this->ssh = $ssh; + } + + /** + * Uploads a file to the SCP server. + * + * By default, Net_SCP::put() does not read from the local filesystem. $data is dumped directly into $remote_file. + * So, for example, if you set $data to 'filename.ext' and then do Net_SCP::get(), you will get a file, twelve bytes + * long, containing 'filename.ext' as its contents. + * + * Setting $mode to NET_SCP_LOCAL_FILE will change the above behavior. With NET_SCP_LOCAL_FILE, $remote_file will + * contain as many bytes as filename.ext does on your local filesystem. If your filename.ext is 1MB then that is how + * large $remote_file will be, as well. + * + * Currently, only binary mode is supported. As such, if the line endings need to be adjusted, you will need to take + * care of that, yourself. + * + * @param String $remote_file + * @param String $data + * @param optional Integer $mode + * @param optional Callable $callback + * @return Boolean + * @access public + */ + function put($remote_file, $data, $mode = NET_SCP_STRING, $callback = null) + { + if (!isset($this->ssh)) { + return false; + } + + if (!$this->ssh->exec('scp -t ' . $remote_file, false)) { // -t = to + return false; + } + + $temp = $this->_receive(); + if ($temp !== chr(0)) { + return false; + } + + if ($this->mode == NET_SCP_SSH2) { + $this->packet_size = $this->ssh->packet_size_client_to_server[NET_SSH2_CHANNEL_EXEC] - 4; + } + + $remote_file = basename($remote_file); + + if ($mode == NET_SCP_STRING) { + $size = strlen($data); + } else { + if (!is_file($data)) { + user_error("$data is not a valid file", E_USER_NOTICE); + return false; + } + + $fp = @fopen($data, 'rb'); + if (!$fp) { + fclose($fp); + return false; + } + $size = filesize($data); + } + + $this->_send('C0644 ' . $size . ' ' . $remote_file . "\n"); + + $temp = $this->_receive(); + if ($temp !== chr(0)) { + return false; + } + + $sent = 0; + while ($sent < $size) { + $temp = $mode & NET_SCP_STRING ? substr($data, $sent, $this->packet_size) : fread($fp, $this->packet_size); + $this->_send($temp); + $sent+= strlen($temp); + + if (is_callable($callback)) { + $callback($sent); + } + } + $this->_close(); + + if ($mode != NET_SCP_STRING) { + fclose($fp); + } + + return true; + } + + /** + * Downloads a file from the SCP server. + * + * Returns a string containing the contents of $remote_file if $local_file is left undefined or a boolean false if + * the operation was unsuccessful. If $local_file is defined, returns true or false depending on the success of the + * operation + * + * @param String $remote_file + * @param optional String $local_file + * @return Mixed + * @access public + */ + function get($remote_file, $local_file = false) + { + if (!isset($this->ssh)) { + return false; + } + + if (!$this->ssh->exec('scp -f ' . $remote_file, false)) { // -f = from + return false; + } + + $this->_send("\0"); + + if (!preg_match('#(?[^ ]+) (?\d+) (?.+)#', rtrim($this->_receive()), $info)) { + return false; + } + + $this->_send("\0"); + + $size = 0; + + if ($local_file !== false) { + $fp = @fopen($local_file, 'wb'); + if (!$fp) { + return false; + } + } + + $content = ''; + while ($size < $info['size']) { + $data = $this->_receive(); + // SCP usually seems to split stuff out into 16k chunks + $size+= strlen($data); + + if ($local_file === false) { + $content.= $data; + } else { + fputs($fp, $data); + } + } + + $this->_close(); + + if ($local_file !== false) { + fclose($fp); + return true; + } + + return $content; + } + + /** + * Sends a packet to an SSH server + * + * @param String $data + * @access private + */ + function _send($data) + { + switch ($this->mode) { + case NET_SCP_SSH2: + $this->ssh->_send_channel_packet(NET_SSH2_CHANNEL_EXEC, $data); + break; + case NET_SCP_SSH1: + $data = pack('CNa*', NET_SSH1_CMSG_STDIN_DATA, strlen($data), $data); + $this->ssh->_send_binary_packet($data); + } + } + + /** + * Receives a packet from an SSH server + * + * @return String + * @access private + */ + function _receive() + { + switch ($this->mode) { + case NET_SCP_SSH2: + return $this->ssh->_get_channel_packet(NET_SSH2_CHANNEL_EXEC, true); + case NET_SCP_SSH1: + if (!$this->ssh->bitmap) { + return false; + } + while (true) { + $response = $this->ssh->_get_binary_packet(); + switch ($response[NET_SSH1_RESPONSE_TYPE]) { + case NET_SSH1_SMSG_STDOUT_DATA: + extract(unpack('Nlength', $response[NET_SSH1_RESPONSE_DATA])); + return $this->ssh->_string_shift($response[NET_SSH1_RESPONSE_DATA], $length); + case NET_SSH1_SMSG_STDERR_DATA: + break; + case NET_SSH1_SMSG_EXITSTATUS: + $this->ssh->_send_binary_packet(chr(NET_SSH1_CMSG_EXIT_CONFIRMATION)); + fclose($this->ssh->fsock); + $this->ssh->bitmap = 0; + return false; + default: + user_error('Unknown packet received', E_USER_NOTICE); + return false; + } + } + } + } + + /** + * Closes the connection to an SSH server + * + * @access private + */ + function _close() + { + switch ($this->mode) { + case NET_SCP_SSH2: + $this->ssh->_close_channel(NET_SSH2_CHANNEL_EXEC, true); + break; + case NET_SCP_SSH1: + $this->ssh->disconnect(); + } + } +} diff --git a/lam/lib/3rdParty/phpseclib/Net/SFTP.php b/lam/lib/3rdParty/phpseclib/Net/SFTP.php index 75d0cacc..68d944f9 100644 --- a/lam/lib/3rdParty/phpseclib/Net/SFTP.php +++ b/lam/lib/3rdParty/phpseclib/Net/SFTP.php @@ -1,12 +1,11 @@ - * @copyright MMIX Jim Wigginton - * @license http://www.opensource.org/licenses/mit-license.html MIT License - * @link http://phpseclib.sourceforge.net + * @category Net + * @package Net_SFTP + * @author Jim Wigginton + * @copyright MMIX Jim Wigginton + * @license http://www.opensource.org/licenses/mit-license.html MIT License + * @link http://phpseclib.sourceforge.net */ /** * Include Net_SSH2 */ -require_once('Net/SSH2.php'); +if (!class_exists('Net_SSH2')) { + include_once 'SSH2.php'; +} /**#@+ * @access public @@ -71,6 +72,10 @@ define('NET_SFTP_LOG_SIMPLE', NET_SSH2_LOG_SIMPLE); * Returns the message content */ define('NET_SFTP_LOG_COMPLEX', NET_SSH2_LOG_COMPLEX); +/** + * Outputs the message content in real-time. + */ +define('NET_SFTP_LOG_REALTIME', 3); /**#@-*/ /** @@ -82,7 +87,7 @@ define('NET_SFTP_LOG_COMPLEX', NET_SSH2_LOG_COMPLEX); * @see Net_SSH2::_get_channel_packet() * @access private */ -define('NET_SFTP_CHANNEL', 2); +define('NET_SFTP_CHANNEL', 0x100); /**#@+ * @access public @@ -91,22 +96,32 @@ define('NET_SFTP_CHANNEL', 2); /** * Reads data from a local file. */ -define('NET_SFTP_LOCAL_FILE', 1); +define('NET_SFTP_LOCAL_FILE', 1); /** * Reads data from a string. */ -define('NET_SFTP_STRING', 2); +// this value isn't really used anymore but i'm keeping it reserved for historical reasons +define('NET_SFTP_STRING', 2); +/** + * Resumes an upload + */ +define('NET_SFTP_RESUME', 4); +/** + * Append a local file to an already existing remote file + */ +define('NET_SFTP_RESUME_START', 8); /**#@-*/ /** * Pure-PHP implementations of SFTP. * + * @package Net_SFTP * @author Jim Wigginton * @version 0.1.0 * @access public - * @package Net_SFTP */ -class Net_SFTP extends Net_SSH2 { +class Net_SFTP extends Net_SSH2 +{ /** * Packet Types * @@ -215,13 +230,28 @@ class Net_SFTP extends Net_SSH2 { var $sftp_errors = array(); /** - * File Type + * Directory Cache * - * @see Net_SFTP::_parseLongname() - * @var Integer + * Rather than always having to open a directory and close it immediately there after to see if a file is a directory or + * rather than always + * + * @see Net_SFTP::_save_dir() + * @see Net_SFTP::_remove_dir() + * @see Net_SFTP::_is_dir() + * @var Array * @access private */ - var $fileType = 0; + var $dirs = array(); + + /** + * Max SFTP Packet Size + * + * @see Net_SFTP::Net_SFTP() + * @see Net_SFTP::get() + * @var Array + * @access private + */ + var $max_sftp_packet; /** * Default Constructor. @@ -237,6 +267,9 @@ class Net_SFTP extends Net_SSH2 { function Net_SFTP($host, $port = 22, $timeout = 10) { parent::Net_SSH2($host, $port, $timeout); + + $this->max_sftp_packet = 1 << 15; + $this->packet_types = array( 1 => 'NET_SFTP_INIT', 2 => 'NET_SFTP_VERSION', @@ -281,7 +314,30 @@ class Net_SFTP extends Net_SSH2 { 5 => 'NET_SFTP_STATUS_BAD_MESSAGE', 6 => 'NET_SFTP_STATUS_NO_CONNECTION', 7 => 'NET_SFTP_STATUS_CONNECTION_LOST', - 8 => 'NET_SFTP_STATUS_OP_UNSUPPORTED' + 8 => 'NET_SFTP_STATUS_OP_UNSUPPORTED', + 9 => 'NET_SFTP_STATUS_INVALID_HANDLE', + 10 => 'NET_SFTP_STATUS_NO_SUCH_PATH', + 11 => 'NET_SFTP_STATUS_FILE_ALREADY_EXISTS', + 12 => 'NET_SFTP_STATUS_WRITE_PROTECT', + 13 => 'NET_SFTP_STATUS_NO_MEDIA', + 14 => 'NET_SFTP_STATUS_NO_SPACE_ON_FILESYSTEM', + 15 => 'NET_SFTP_STATUS_QUOTA_EXCEEDED', + 16 => 'NET_SFTP_STATUS_UNKNOWN_PRINCIPAL', + 17 => 'NET_SFTP_STATUS_LOCK_CONFLICT', + 18 => 'NET_SFTP_STATUS_DIR_NOT_EMPTY', + 19 => 'NET_SFTP_STATUS_NOT_A_DIRECTORY', + 20 => 'NET_SFTP_STATUS_INVALID_FILENAME', + 21 => 'NET_SFTP_STATUS_LINK_LOOP', + 22 => 'NET_SFTP_STATUS_CANNOT_DELETE', + 23 => 'NET_SFTP_STATUS_INVALID_PARAMETER', + 24 => 'NET_SFTP_STATUS_FILE_IS_A_DIRECTORY', + 25 => 'NET_SFTP_STATUS_BYTE_RANGE_LOCK_CONFLICT', + 26 => 'NET_SFTP_STATUS_BYTE_RANGE_LOCK_REFUSED', + 27 => 'NET_SFTP_STATUS_DELETE_PENDING', + 28 => 'NET_SFTP_STATUS_FILE_CORRUPT', + 29 => 'NET_SFTP_STATUS_OWNER_INVALID', + 30 => 'NET_SFTP_STATUS_GROUP_INVALID', + 31 => 'NET_SFTP_STATUS_NO_MATCHING_BYTE_RANGE_LOCK' ); // http://tools.ietf.org/html/draft-ietf-secsh-filexfer-13#section-7.1 // the order, in this case, matters quite a lot - see Net_SFTP::_parseAttributes() to understand why @@ -291,7 +347,7 @@ class Net_SFTP extends Net_SSH2 { 0x00000004 => 'NET_SFTP_ATTR_PERMISSIONS', 0x00000008 => 'NET_SFTP_ATTR_ACCESSTIME', // 0x80000000 will yield a floating point on 32-bit systems and converting floating points to integers - // yields inconsistent behavior depending on how php is compiled. so we left shift -1 (which, in + // yields inconsistent behavior depending on how php is compiled. so we left shift -1 (which, in // two's compliment, consists of all 1 bits) by 31. on 64-bit systems this'll yield 0xFFFFFFFF80000000. // that's not a problem, however, and 'anded' and a 32-bit number, as all the leading 1 bits are ignored. -1 << 31 => 'NET_SFTP_ATTR_EXTENDED' @@ -302,8 +358,10 @@ class Net_SFTP extends Net_SSH2 { $this->open_flags = array( 0x00000001 => 'NET_SFTP_OPEN_READ', 0x00000002 => 'NET_SFTP_OPEN_WRITE', + 0x00000004 => 'NET_SFTP_OPEN_APPEND', 0x00000008 => 'NET_SFTP_OPEN_CREATE', - 0x00000010 => 'NET_SFTP_OPEN_TRUNCATE' + 0x00000010 => 'NET_SFTP_OPEN_TRUNCATE', + 0x00000020 => 'NET_SFTP_OPEN_EXCL' ); // http://tools.ietf.org/html/draft-ietf-secsh-filexfer-04#section-5.2 // see Net_SFTP::_parseLongname() for an explanation @@ -311,7 +369,14 @@ class Net_SFTP extends Net_SSH2 { 1 => 'NET_SFTP_TYPE_REGULAR', 2 => 'NET_SFTP_TYPE_DIRECTORY', 3 => 'NET_SFTP_TYPE_SYMLINK', - 4 => 'NET_SFTP_TYPE_SPECIAL' + 4 => 'NET_SFTP_TYPE_SPECIAL', + 5 => 'NET_SFTP_TYPE_UNKNOWN', + // the followin types were first defined for use in SFTPv5+ + // http://tools.ietf.org/html/draft-ietf-secsh-filexfer-05#section-5.2 + 6 => 'NET_SFTP_TYPE_SOCKET', + 7 => 'NET_SFTP_TYPE_CHAR_DEVICE', + 8 => 'NET_SFTP_TYPE_BLOCK_DEVICE', + 9 => 'NET_SFTP_TYPE_FIFO' ); $this->_define_array( $this->packet_types, @@ -320,6 +385,10 @@ class Net_SFTP extends Net_SSH2 { $this->open_flags, $this->file_types ); + + if (!defined('NET_SFTP_QUEUE_SIZE')) { + define('NET_SFTP_QUEUE_SIZE', 50); + } } /** @@ -330,13 +399,14 @@ class Net_SFTP extends Net_SSH2 { * @return Boolean * @access public */ - function login($username, $password = '') + function login($username) { - if (!parent::login($username, $password)) { + $args = func_get_args(); + if (!call_user_func_array(array(&$this, '_login'), $args)) { return false; } - $this->window_size_client_to_server[NET_SFTP_CHANNEL] = $this->window_size; + $this->window_size_server_to_client[NET_SFTP_CHANNEL] = $this->window_size; $packet = pack('CNa*N3', NET_SSH2_MSG_CHANNEL_OPEN, strlen('session'), 'session', NET_SFTP_CHANNEL, $this->window_size, 0x4000); @@ -362,7 +432,24 @@ class Net_SFTP extends Net_SSH2 { $response = $this->_get_channel_packet(NET_SFTP_CHANNEL); if ($response === false) { - return false; + // from PuTTY's psftp.exe + $command = "test -x /usr/lib/sftp-server && exec /usr/lib/sftp-server\n" . + "test -x /usr/local/lib/sftp-server && exec /usr/local/lib/sftp-server\n" . + "exec sftp-server"; + // we don't do $this->exec($command, false) because exec() operates on a different channel and plus the SSH_MSG_CHANNEL_OPEN that exec() does + // is redundant + $packet = pack('CNNa*CNa*', + NET_SSH2_MSG_CHANNEL_REQUEST, $this->server_channels[NET_SFTP_CHANNEL], strlen('exec'), 'exec', 1, strlen($command), $command); + if (!$this->_send_binary_packet($packet)) { + return false; + } + + $this->channel_status[NET_SFTP_CHANNEL] = NET_SSH2_MSG_CHANNEL_REQUEST; + + $response = $this->_get_channel_packet(NET_SFTP_CHANNEL); + if ($response === false) { + return false; + } } $this->channel_status[NET_SFTP_CHANNEL] = NET_SSH2_MSG_CHANNEL_DATA; @@ -373,7 +460,7 @@ class Net_SFTP extends Net_SSH2 { $response = $this->_get_sftp_packet(); if ($this->packet_type != NET_SFTP_VERSION) { - user_error('Expected SSH_FXP_VERSION', E_USER_NOTICE); + user_error('Expected SSH_FXP_VERSION'); return false; } @@ -426,12 +513,18 @@ class Net_SFTP extends Net_SSH2 { in draft-ietf-secsh-filexfer-13 would be quite impossible. As such, what Net_SFTP would do is close the channel and reopen it with a new and updated SSH_FXP_INIT packet. */ - if ($this->version != 3) { - return false; + switch ($this->version) { + case 2: + case 3: + break; + default: + return false; } $this->pwd = $this->_realpath('.'); + $this->_save_dir($this->pwd); + return true; } @@ -446,94 +539,87 @@ class Net_SFTP extends Net_SSH2 { return $this->pwd; } + /** + * Logs errors + * + * @param String $response + * @param optional Integer $status + * @access public + */ + function _logError($response, $status = -1) + { + if ($status == -1) { + extract(unpack('Nstatus', $this->_string_shift($response, 4))); + } + + $error = $this->status_codes[$status]; + + if ($this->version > 2) { + extract(unpack('Nlength', $this->_string_shift($response, 4))); + $this->sftp_errors[] = $error . ': ' . $this->_string_shift($response, $length); + } else { + $this->sftp_errors[] = $error; + } + } + /** * Canonicalize the Server-Side Path Name * * SFTP doesn't provide a mechanism by which the current working directory can be changed, so we'll emulate it. Returns - * the absolute (canonicalized) path. If $mode is set to NET_SFTP_CONFIRM_DIR (as opposed to NET_SFTP_CONFIRM_NONE, - * which is what it is set to by default), false is returned if $dir is not a valid directory. + * the absolute (canonicalized) path. * * @see Net_SFTP::chdir() - * @param String $dir - * @param optional Integer $mode + * @param String $path * @return Mixed * @access private */ - function _realpath($dir) + function _realpath($path) { - /* - "This protocol represents file names as strings. File names are - assumed to use the slash ('/') character as a directory separator. - - File names starting with a slash are "absolute", and are relative to - the root of the file system. Names starting with any other character - are relative to the user's default directory (home directory). Note - that identifying the user is assumed to take place outside of this - protocol." - - -- http://tools.ietf.org/html/draft-ietf-secsh-filexfer-13#section-6 - */ - $file = ''; - if ($this->pwd !== false) { - // if the SFTP server returned the canonicalized path even for non-existant files this wouldn't be necessary - // on OpenSSH it isn't necessary but on other SFTP servers it is. that and since the specs say nothing on - // the subject, we'll go ahead and work around it with the following. - if ($dir[strlen($dir) - 1] != '/') { - $file = basename($dir); - $dir = dirname($dir); - } - - if ($dir == '.' || $dir == $this->pwd) { - return $this->pwd . $file; - } - - if ($dir[0] != '/') { - $dir = $this->pwd . '/' . $dir; - } - // on the surface it seems like maybe resolving a path beginning with / is unnecessary, but such paths - // can contain .'s and ..'s just like any other. we could parse those out as appropriate or we can let - // the server do it. we'll do the latter. - } - - /* - that SSH_FXP_REALPATH returns SSH_FXP_NAME does not necessarily mean that anything actually exists at the - specified path. generally speaking, no attributes are returned with this particular SSH_FXP_NAME packet - regardless of whether or not a file actually exists. and in SFTPv3, the longname field and the filename - field match for this particular SSH_FXP_NAME packet. for other SSH_FXP_NAME packets, this will likely - not be the case, but for this one, it is. - */ - // http://tools.ietf.org/html/draft-ietf-secsh-filexfer-13#section-8.9 - if (!$this->_send_sftp_packet(NET_SFTP_REALPATH, pack('Na*', strlen($dir), $dir))) { - return false; - } - - $response = $this->_get_sftp_packet(); - switch ($this->packet_type) { - case NET_SFTP_NAME: - // although SSH_FXP_NAME is implemented differently in SFTPv3 than it is in SFTPv4+, the following - // should work on all SFTP versions since the only part of the SSH_FXP_NAME packet the following looks - // at is the first part and that part is defined the same in SFTP versions 3 through 6. - $this->_string_shift($response, 4); // skip over the count - it should be 1, anyway - extract(unpack('Nlength', $this->_string_shift($response, 4))); - $realpath = $this->_string_shift($response, $length); - // the following is SFTPv3 only code. see Net_SFTP::_parseLongname() for more information. - // per the above comment, this is a shot in the dark that, on most servers, won't help us in determining - // the file type for Net_SFTP::stat() and Net_SFTP::lstat() but it's worth a shot. - extract(unpack('Nlength', $this->_string_shift($response, 4))); - $this->fileType = $this->_parseLongname($this->_string_shift($response, $length)); - break; - case NET_SFTP_STATUS: - extract(unpack('Nstatus/Nlength', $this->_string_shift($response, 8))); - $this->sftp_errors[] = $this->status_codes[$status] . ': ' . $this->_string_shift($response, $length); - return false; - default: - user_error('Expected SSH_FXP_NAME or SSH_FXP_STATUS', E_USER_NOTICE); + if ($this->pwd === false) { + // http://tools.ietf.org/html/draft-ietf-secsh-filexfer-13#section-8.9 + if (!$this->_send_sftp_packet(NET_SFTP_REALPATH, pack('Na*', strlen($path), $path))) { return false; + } + + $response = $this->_get_sftp_packet(); + switch ($this->packet_type) { + case NET_SFTP_NAME: + // although SSH_FXP_NAME is implemented differently in SFTPv3 than it is in SFTPv4+, the following + // should work on all SFTP versions since the only part of the SSH_FXP_NAME packet the following looks + // at is the first part and that part is defined the same in SFTP versions 3 through 6. + $this->_string_shift($response, 4); // skip over the count - it should be 1, anyway + extract(unpack('Nlength', $this->_string_shift($response, 4))); + return $this->_string_shift($response, $length); + case NET_SFTP_STATUS: + $this->_logError($response); + return false; + default: + user_error('Expected SSH_FXP_NAME or SSH_FXP_STATUS'); + return false; + } } - // if $this->pwd isn't set than the only thing $realpath could be is for '.', which is pretty much guaranteed to - // be a bonafide directory - return $realpath . '/' . $file; + if ($path[0] != '/') { + $path = $this->pwd . '/' . $path; + } + + $path = explode('/', $path); + $new = array(); + foreach ($path as $dir) { + if (!strlen($dir)) { + continue; + } + switch ($dir) { + case '..': + array_pop($new); + case '.': + break; + default: + $new[] = $dir; + } + } + + return '/' . implode('/', $new); } /** @@ -549,12 +635,27 @@ class Net_SFTP extends Net_SSH2 { return false; } - if ($dir[strlen($dir) - 1] != '/') { + // assume current dir if $dir is empty + if ($dir === '') { + $dir = './'; + // suffix a slash if needed + } elseif ($dir[strlen($dir) - 1] != '/') { $dir.= '/'; } + $dir = $this->_realpath($dir); // confirm that $dir is, in fact, a valid directory + if ($this->_is_dir($dir)) { + $this->pwd = $dir; + return true; + } + + // we could do a stat on the alleged $dir to see if it's a directory but that doesn't tell us + // the currently logged in user has the appropriate permissions or not. maybe you could see if + // the file's uid / gid match the currently logged in user's uid / gid but how there's no easy + // way to get those with SFTP + if (!$this->_send_sftp_packet(NET_SFTP_OPENDIR, pack('Na*', strlen($dir), $dir))) { return false; } @@ -566,30 +667,18 @@ class Net_SFTP extends Net_SSH2 { $handle = substr($response, 4); break; case NET_SFTP_STATUS: - extract(unpack('Nstatus/Nlength', $this->_string_shift($response, 8))); - $this->sftp_errors[] = $this->status_codes[$status] . ': ' . $this->_string_shift($response, $length); + $this->_logError($response); return false; default: - user_error('Expected SSH_FXP_HANDLE or SSH_FXP_STATUS', E_USER_NOTICE); + user_error('Expected SSH_FXP_HANDLE or SSH_FXP_STATUS'); return false; } - if (!$this->_send_sftp_packet(NET_SFTP_CLOSE, pack('Na*', strlen($handle), $handle))) { + if (!$this->_close_handle($handle)) { return false; } - $response = $this->_get_sftp_packet(); - if ($this->packet_type != NET_SFTP_STATUS) { - user_error('Expected SSH_FXP_STATUS', E_USER_NOTICE); - return false; - } - - extract(unpack('Nstatus', $this->_string_shift($response, 4))); - if ($status != NET_SFTP_STATUS_OK) { - extract(unpack('Nlength', $this->_string_shift($response, 4))); - $this->sftp_errors[] = $this->status_codes[$status] . ': ' . $this->_string_shift($response, $length); - return false; - } + $this->_save_dir($dir); $this->pwd = $dir; return true; @@ -622,17 +711,22 @@ class Net_SFTP extends Net_SSH2 { /** * Reads a list, be it detailed or not, of files in the given directory * - * @param optional String $dir + * $realpath exists because, in the case of the recursive deletes and recursive chmod's $realpath has already + * been calculated. + * + * @param String $dir + * @param optional Boolean $raw + * @param optional Boolean $realpath * @return Mixed * @access private */ - function _list($dir, $raw = true) + function _list($dir, $raw = true, $realpath = true) { if (!($this->bitmap & NET_SSH2_MASK_LOGIN)) { return false; } - $dir = $this->_realpath($dir); + $dir = $this->_realpath($dir . '/'); if ($dir === false) { return false; } @@ -652,14 +746,15 @@ class Net_SFTP extends Net_SSH2 { break; case NET_SFTP_STATUS: // presumably SSH_FX_NO_SUCH_FILE or SSH_FX_PERMISSION_DENIED - extract(unpack('Nstatus/Nlength', $this->_string_shift($response, 8))); - $this->sftp_errors[] = $this->status_codes[$status] . ': ' . $this->_string_shift($response, $length); + $this->_logError($response); return false; default: - user_error('Expected SSH_FXP_HANDLE or SSH_FXP_STATUS', E_USER_NOTICE); + user_error('Expected SSH_FXP_HANDLE or SSH_FXP_STATUS'); return false; } + $this->_save_dir($dir); + $contents = array(); while (true) { // http://tools.ietf.org/html/draft-ietf-secsh-filexfer-13#section-8.2.2 @@ -678,15 +773,21 @@ class Net_SFTP extends Net_SSH2 { $shortname = $this->_string_shift($response, $length); extract(unpack('Nlength', $this->_string_shift($response, 4))); $longname = $this->_string_shift($response, $length); - $attributes = $this->_parseAttributes($response); // we also don't care about the attributes + $attributes = $this->_parseAttributes($response); + if (!isset($attributes['type'])) { + $fileType = $this->_parseLongname($longname); + if ($fileType) { + $attributes['type'] = $fileType; + } + } if (!$raw) { $contents[] = $shortname; } else { $contents[$shortname] = $attributes; - $fileType = $this->_parseLongname($longname); - if ($fileType) { - $contents[$shortname]['type'] = $fileType; - } + } + + if (isset($attributes['type']) && $attributes['type'] == NET_SFTP_TYPE_DIRECTORY && ($shortname != '.' && $shortname != '..')) { + $this->_save_dir($dir . '/' . $shortname); } // SFTPv6 has an optional boolean end-of-list field, but we'll ignore that, since the // final SSH_FXP_STATUS packet should tell us that, already. @@ -695,33 +796,17 @@ class Net_SFTP extends Net_SSH2 { case NET_SFTP_STATUS: extract(unpack('Nstatus', $this->_string_shift($response, 4))); if ($status != NET_SFTP_STATUS_EOF) { - extract(unpack('Nlength', $this->_string_shift($response, 4))); - $this->sftp_errors[] = $this->status_codes[$status] . ': ' . $this->_string_shift($response, $length); + $this->_logError($response, $status); return false; } break 2; default: - user_error('Expected SSH_FXP_NAME or SSH_FXP_STATUS', E_USER_NOTICE); + user_error('Expected SSH_FXP_NAME or SSH_FXP_STATUS'); return false; } } - if (!$this->_send_sftp_packet(NET_SFTP_CLOSE, pack('Na*', strlen($handle), $handle))) { - return false; - } - - // "The client MUST release all resources associated with the handle regardless of the status." - // -- http://tools.ietf.org/html/draft-ietf-secsh-filexfer-13#section-8.1.3 - $response = $this->_get_sftp_packet(); - if ($this->packet_type != NET_SFTP_STATUS) { - user_error('Expected SSH_FXP_STATUS', E_USER_NOTICE); - return false; - } - - extract(unpack('Nstatus', $this->_string_shift($response, 4))); - if ($status != NET_SFTP_STATUS_OK) { - extract(unpack('Nlength', $this->_string_shift($response, 4))); - $this->sftp_errors[] = $this->status_codes[$status] . ': ' . $this->_string_shift($response, $length); + if (!$this->_close_handle($handle)) { return false; } @@ -751,6 +836,72 @@ class Net_SFTP extends Net_SSH2 { return $this->_size($filename); } + /** + * Save directories to cache + * + * @param String $dir + * @access private + */ + function _save_dir($dir) + { + // preg_replace('#^/|/(?=/)|/$#', '', $dir) == str_replace('//', '/', trim($dir, '/')) + $dirs = explode('/', preg_replace('#^/|/(?=/)|/$#', '', $dir)); + + $temp = &$this->dirs; + foreach ($dirs as $dir) { + if (!isset($temp[$dir])) { + $temp[$dir] = array(); + } + $temp = &$temp[$dir]; + } + } + + /** + * Remove directories from cache + * + * @param String $dir + * @access private + */ + function _remove_dir($dir) + { + $dirs = explode('/', preg_replace('#^/|/(?=/)|/$#', '', $dir)); + + $temp = &$this->dirs; + foreach ($dirs as $dir) { + if ($dir == end($dirs)) { + unset($temp[$dir]); + return true; + } + if (!isset($temp[$dir])) { + return false; + } + $temp = &$temp[$dir]; + } + } + + /** + * Checks cache for directory + * + * Mainly used by chdir, which is, in turn, also used for determining whether or not an individual + * file is a directory or not by stat() and lstat() + * + * @param String $dir + * @access private + */ + function _is_dir($dir) + { + $dirs = explode('/', preg_replace('#^/|/(?=/)|/$#', '', $dir)); + + $temp = &$this->dirs; + foreach ($dirs as $dir) { + if (!isset($temp[$dir])) { + return false; + } + $temp = &$temp[$dir]; + } + return true; + } + /** * Returns general information about a file. * @@ -771,7 +922,21 @@ class Net_SFTP extends Net_SSH2 { return false; } - return $this->_stat($filename, NET_SFTP_STAT); + $stat = $this->_stat($filename, NET_SFTP_STAT); + if ($stat === false) { + return false; + } + if (isset($stat['type'])) { + return $stat; + } + + $pwd = $this->pwd; + $stat['type'] = $this->chdir($filename) ? + NET_SFTP_TYPE_DIRECTORY : + NET_SFTP_TYPE_REGULAR; + $this->pwd = $pwd; + + return $stat; } /** @@ -794,7 +959,27 @@ class Net_SFTP extends Net_SSH2 { return false; } - return $this->_stat($filename, NET_SFTP_LSTAT); + $lstat = $this->_stat($filename, NET_SFTP_LSTAT); + if ($lstat === false) { + return false; + } + if (isset($lstat['type'])) { + return $lstat; + } + + $stat = $this->_stat($filename, NET_SFTP_STAT); + + if ($lstat != $stat) { + return array_merge($lstat, array('type' => NET_SFTP_TYPE_SYMLINK)); + } + + $pwd = $this->pwd; + $lstat['type'] = $this->chdir($filename) ? + NET_SFTP_TYPE_DIRECTORY : + NET_SFTP_TYPE_REGULAR; + $this->pwd = $pwd; + + return $lstat; } /** @@ -819,18 +1004,13 @@ class Net_SFTP extends Net_SSH2 { $response = $this->_get_sftp_packet(); switch ($this->packet_type) { case NET_SFTP_ATTRS: - $attributes = $this->_parseAttributes($response); - if ($this->fileType) { - $attributes['type'] = $this->fileType; - } - return $attributes; + return $this->_parseAttributes($response); case NET_SFTP_STATUS: - extract(unpack('Nstatus/Nlength', $this->_string_shift($response, 8))); - $this->sftp_errors[] = $this->status_codes[$status] . ': ' . $this->_string_shift($response, $length); + $this->_logError($response); return false; } - user_error('Expected SSH_FXP_ATTRS or SSH_FXP_STATUS', E_USER_NOTICE); + user_error('Expected SSH_FXP_ATTRS or SSH_FXP_STATUS'); return false; } @@ -845,21 +1025,40 @@ class Net_SFTP extends Net_SSH2 { */ function _size($filename) { - $result = $this->_stat($filename, NET_SFTP_LSTAT); - return $result === false ? false : $result['size']; + $result = $this->_stat($filename, NET_SFTP_STAT); + if ($result === false) { + return false; + } + return isset($result['size']) ? $result['size'] : -1; } /** - * Set permissions on a file. + * Truncates a file to a given length * - * Returns the new file permissions on success or FALSE on error. - * - * @param Integer $mode * @param String $filename - * @return Mixed + * @param Integer $new_size + * @return Boolean * @access public */ - function chmod($mode, $filename) + function truncate($filename, $new_size) + { + $attr = pack('N3', NET_SFTP_ATTR_SIZE, $new_size / 4294967296, $new_size); // 4294967296 == 0x100000000 == 1<<32 + + return $this->_setstat($filename, $attr, false); + } + + /** + * Sets access and modification time of file. + * + * If the file does not exist, it will be created. + * + * @param String $filename + * @param optional Integer $time + * @param optional Integer $atime + * @return Boolean + * @access public + */ + function touch($filename, $time = null, $atime = null) { if (!($this->bitmap & NET_SSH2_MASK_LOGIN)) { return false; @@ -870,30 +1069,99 @@ class Net_SFTP extends Net_SSH2 { return false; } - // SFTPv4+ has an additional byte field - type - that would need to be sent, as well. setting it to - // SSH_FILEXFER_TYPE_UNKNOWN might work. if not, we'd have to do an SSH_FXP_STAT before doing an SSH_FXP_SETSTAT. - $attr = pack('N2', NET_SFTP_ATTR_PERMISSIONS, $mode & 07777); - if (!$this->_send_sftp_packet(NET_SFTP_SETSTAT, pack('Na*a*', strlen($filename), $filename, $attr))) { + if (!isset($time)) { + $time = time(); + } + if (!isset($atime)) { + $atime = $time; + } + + $flags = NET_SFTP_OPEN_WRITE | NET_SFTP_OPEN_CREATE | NET_SFTP_OPEN_EXCL; + $attr = pack('N3', NET_SFTP_ATTR_ACCESSTIME, $time, $atime); + $packet = pack('Na*Na*', strlen($filename), $filename, $flags, $attr); + if (!$this->_send_sftp_packet(NET_SFTP_OPEN, $packet)) { return false; } - /* - "Because some systems must use separate system calls to set various attributes, it is possible that a failure - response will be returned, but yet some of the attributes may be have been successfully modified. If possible, - servers SHOULD avoid this situation; however, clients MUST be aware that this is possible." - - -- http://tools.ietf.org/html/draft-ietf-secsh-filexfer-13#section-8.6 - */ $response = $this->_get_sftp_packet(); - if ($this->packet_type != NET_SFTP_STATUS) { - user_error('Expected SSH_FXP_STATUS', E_USER_NOTICE); - return false; + switch ($this->packet_type) { + case NET_SFTP_HANDLE: + return $this->_close_handle(substr($response, 4)); + case NET_SFTP_STATUS: + $this->_logError($response); + break; + default: + user_error('Expected SSH_FXP_HANDLE or SSH_FXP_STATUS'); + return false; } - extract(unpack('Nstatus', $this->_string_shift($response, 4))); - if ($status != NET_SFTP_STATUS_EOF) { - extract(unpack('Nlength', $this->_string_shift($response, 4))); - $this->sftp_errors[] = $this->status_codes[$status] . ': ' . $this->_string_shift($response, $length); + return $this->_setstat($filename, $attr, false); + } + + /** + * Changes file or directory owner + * + * Returns true on success or false on error. + * + * @param String $filename + * @param Integer $uid + * @param optional Boolean $recursive + * @return Boolean + * @access public + */ + function chown($filename, $uid, $recursive = false) + { + // quoting from , + // "if the owner or group is specified as -1, then that ID is not changed" + $attr = pack('N3', NET_SFTP_ATTR_UIDGID, $uid, -1); + + return $this->_setstat($filename, $attr, $recursive); + } + + /** + * Changes file or directory group + * + * Returns true on success or false on error. + * + * @param String $filename + * @param Integer $gid + * @param optional Boolean $recursive + * @return Boolean + * @access public + */ + function chgrp($filename, $gid, $recursive = false) + { + $attr = pack('N3', NET_SFTP_ATTR_UIDGID, -1, $gid); + + return $this->_setstat($filename, $attr, $recursive); + } + + /** + * Set permissions on a file. + * + * Returns the new file permissions on success or false on error. + * If $recursive is true than this just returns true or false. + * + * @param Integer $mode + * @param String $filename + * @param optional Boolean $recursive + * @return Mixed + * @access public + */ + function chmod($mode, $filename, $recursive = false) + { + if (is_string($mode) && is_int($filename)) { + $temp = $mode; + $mode = $filename; + $filename = $temp; + } + + $attr = pack('N2', NET_SFTP_ATTR_PERMISSIONS, $mode & 07777); + if (!$this->_setstat($filename, $attr, $recursive)) { + return false; + } + if ($recursive) { + return true; } // rather than return what the permissions *should* be, we'll return what they actually are. this will also @@ -910,15 +1178,144 @@ class Net_SFTP extends Net_SSH2 { $attrs = $this->_parseAttributes($response); return $attrs['permissions']; case NET_SFTP_STATUS: - extract(unpack('Nstatus/Nlength', $this->_string_shift($response, 8))); - $this->sftp_errors[] = $this->status_codes[$status] . ': ' . $this->_string_shift($response, $length); + $this->_logError($response); return false; } - user_error('Expected SSH_FXP_ATTRS or SSH_FXP_STATUS', E_USER_NOTICE); + user_error('Expected SSH_FXP_ATTRS or SSH_FXP_STATUS'); return false; } + /** + * Sets information about a file + * + * @param String $filename + * @param String $attr + * @param Boolean $recursive + * @return Boolean + * @access private + */ + function _setstat($filename, $attr, $recursive) + { + if (!($this->bitmap & NET_SSH2_MASK_LOGIN)) { + return false; + } + + $filename = $this->_realpath($filename); + if ($filename === false) { + return false; + } + + if ($recursive) { + $i = 0; + $result = $this->_setstat_recursive($filename, $attr, $i); + $this->_read_put_responses($i); + return $result; + } + + // SFTPv4+ has an additional byte field - type - that would need to be sent, as well. setting it to + // SSH_FILEXFER_TYPE_UNKNOWN might work. if not, we'd have to do an SSH_FXP_STAT before doing an SSH_FXP_SETSTAT. + if (!$this->_send_sftp_packet(NET_SFTP_SETSTAT, pack('Na*a*', strlen($filename), $filename, $attr))) { + return false; + } + + /* + "Because some systems must use separate system calls to set various attributes, it is possible that a failure + response will be returned, but yet some of the attributes may be have been successfully modified. If possible, + servers SHOULD avoid this situation; however, clients MUST be aware that this is possible." + + -- http://tools.ietf.org/html/draft-ietf-secsh-filexfer-13#section-8.6 + */ + $response = $this->_get_sftp_packet(); + if ($this->packet_type != NET_SFTP_STATUS) { + user_error('Expected SSH_FXP_STATUS'); + return false; + } + + extract(unpack('Nstatus', $this->_string_shift($response, 4))); + if ($status != NET_SFTP_STATUS_OK) { + $this->_logError($response, $status); + return false; + } + + return true; + } + + /** + * Recursively sets information on directories on the SFTP server + * + * Minimizes directory lookups and SSH_FXP_STATUS requests for speed. + * + * @param String $path + * @param String $attr + * @param Integer $i + * @return Boolean + * @access private + */ + function _setstat_recursive($path, $attr, &$i) + { + if (!$this->_read_put_responses($i)) { + return false; + } + $i = 0; + $entries = $this->_list($path, true, false); + + if ($entries === false) { + return $this->_setstat($path, $attr, false); + } + + // normally $entries would have at least . and .. but it might not if the directories + // permissions didn't allow reading + if (empty($entries)) { + return false; + } + + foreach ($entries as $filename=>$props) { + if ($filename == '.' || $filename == '..') { + continue; + } + + if (!isset($props['type'])) { + return false; + } + + $temp = $path . '/' . $filename; + if ($props['type'] == NET_SFTP_TYPE_DIRECTORY) { + if (!$this->_setstat_recursive($temp, $attr, $i)) { + return false; + } + } else { + if (!$this->_send_sftp_packet(NET_SFTP_SETSTAT, pack('Na*a*', strlen($temp), $temp, $attr))) { + return false; + } + + $i++; + + if ($i >= NET_SFTP_QUEUE_SIZE) { + if (!$this->_read_put_responses($i)) { + return false; + } + $i = 0; + } + } + } + + if (!$this->_send_sftp_packet(NET_SFTP_SETSTAT, pack('Na*a*', strlen($path), $path, $attr))) { + return false; + } + + $i++; + + if ($i >= NET_SFTP_QUEUE_SIZE) { + if (!$this->_read_put_responses($i)) { + return false; + } + $i = 0; + } + + return true; + } + /** * Creates a directory. * @@ -926,36 +1323,61 @@ class Net_SFTP extends Net_SSH2 { * @return Boolean * @access public */ - function mkdir($dir) + function mkdir($dir, $mode = -1, $recursive = false) { if (!($this->bitmap & NET_SSH2_MASK_LOGIN)) { return false; } - $dir = $this->_realpath(rtrim($dir, '/')); - if ($dir === false) { - return false; + $dir = $this->_realpath($dir); + // by not providing any permissions, hopefully the server will use the logged in users umask - their + // default permissions. + $attr = $mode == -1 ? "\0\0\0\0" : pack('N2', NET_SFTP_ATTR_PERMISSIONS, $mode & 07777); + + if ($recursive) { + $dirs = explode('/', preg_replace('#/(?=/)|/$#', '', $dir)); + if (empty($dirs[0])) { + array_shift($dirs); + $dirs[0] = '/' . $dirs[0]; + } + for ($i = 0; $i < count($dirs); $i++) { + $temp = array_slice($dirs, 0, $i + 1); + $temp = implode('/', $temp); + $result = $this->_mkdir_helper($temp, $attr); + } + return $result; } - // by not providing any permissions, hopefully the server will use the logged in users umask - their - // default permissions. - if (!$this->_send_sftp_packet(NET_SFTP_MKDIR, pack('Na*N', strlen($dir), $dir, 0))) { + return $this->_mkdir_helper($dir, $attr); + } + + /** + * Helper function for directory creation + * + * @param String $dir + * @return Boolean + * @access private + */ + function _mkdir_helper($dir, $attr) + { + if (!$this->_send_sftp_packet(NET_SFTP_MKDIR, pack('Na*a*', strlen($dir), $dir, $attr))) { return false; } $response = $this->_get_sftp_packet(); if ($this->packet_type != NET_SFTP_STATUS) { - user_error('Expected SSH_FXP_STATUS', E_USER_NOTICE); + user_error('Expected SSH_FXP_STATUS'); return false; } extract(unpack('Nstatus', $this->_string_shift($response, 4))); if ($status != NET_SFTP_STATUS_OK) { - extract(unpack('Nlength', $this->_string_shift($response, 4))); - $this->sftp_errors[] = $this->status_codes[$status] . ': ' . $this->_string_shift($response, $length); + $this->_logError($response, $status); return false; } + $this->_save_dir($dir); + return true; } @@ -983,18 +1405,19 @@ class Net_SFTP extends Net_SSH2 { $response = $this->_get_sftp_packet(); if ($this->packet_type != NET_SFTP_STATUS) { - user_error('Expected SSH_FXP_STATUS', E_USER_NOTICE); + user_error('Expected SSH_FXP_STATUS'); return false; } extract(unpack('Nstatus', $this->_string_shift($response, 4))); if ($status != NET_SFTP_STATUS_OK) { // presumably SSH_FX_NO_SUCH_FILE or SSH_FX_PERMISSION_DENIED? - extract(unpack('Nlength', $this->_string_shift($response, 4))); - $this->sftp_errors[] = $this->status_codes[$status] . ': ' . $this->_string_shift($response, $length); + $this->_logError($response, $status); return false; } + $this->_remove_dir($dir); + return true; } @@ -1005,21 +1428,40 @@ class Net_SFTP extends Net_SSH2 { * So, for example, if you set $data to 'filename.ext' and then do Net_SFTP::get(), you will get a file, twelve bytes * long, containing 'filename.ext' as its contents. * - * Setting $mode to NET_SFTP_LOCAL_FILE will change the above behavior. With NET_SFTP_LOCAL_FILE, $remote_file will + * Setting $mode to NET_SFTP_LOCAL_FILE will change the above behavior. With NET_SFTP_LOCAL_FILE, $remote_file will * contain as many bytes as filename.ext does on your local filesystem. If your filename.ext is 1MB then that is how * large $remote_file will be, as well. * * Currently, only binary mode is supported. As such, if the line endings need to be adjusted, you will need to take * care of that, yourself. * + * $mode can take an additional two parameters - NET_SFTP_RESUME and NET_SFTP_RESUME_START. These are bitwise AND'd with + * $mode. So if you want to resume upload of a 300mb file on the local file system you'd set $mode to the following: + * + * NET_SFTP_LOCAL_FILE | NET_SFTP_RESUME + * + * If you wanted to simply append the full contents of a local file to the full contents of a remote file you'd replace + * NET_SFTP_RESUME with NET_SFTP_RESUME_START. + * + * If $mode & (NET_SFTP_RESUME | NET_SFTP_RESUME_START) then NET_SFTP_RESUME_START will be assumed. + * + * $start and $local_start give you more fine grained control over this process and take precident over NET_SFTP_RESUME + * when they're non-negative. ie. $start could let you write at the end of a file (like NET_SFTP_RESUME) or in the middle + * of one. $local_start could let you start your reading from the end of a file (like NET_SFTP_RESUME_START) or in the + * middle of one. + * + * Setting $local_start to > 0 or $mode | NET_SFTP_RESUME_START doesn't do anything unless $mode | NET_SFTP_LOCAL_FILE. + * * @param String $remote_file * @param String $data * @param optional Integer $mode + * @param optional Integer $start + * @param optional Integer $local_start * @return Boolean * @access public * @internal ASCII mode for SFTPv4/5/6 can be supported by adding a new function - Net_SFTP::setMode(). */ - function put($remote_file, $data, $mode = NET_SFTP_STRING) + function put($remote_file, $data, $mode = NET_SFTP_STRING, $start = -1, $local_start = -1) { if (!($this->bitmap & NET_SSH2_MASK_LOGIN)) { return false; @@ -1030,7 +1472,23 @@ class Net_SFTP extends Net_SSH2 { return false; } - $packet = pack('Na*N2', strlen($remote_file), $remote_file, NET_SFTP_OPEN_WRITE | NET_SFTP_OPEN_CREATE | NET_SFTP_OPEN_TRUNCATE, 0); + $flags = NET_SFTP_OPEN_WRITE | NET_SFTP_OPEN_CREATE; + // according to the SFTP specs, NET_SFTP_OPEN_APPEND should "force all writes to append data at the end of the file." + // in practice, it doesn't seem to do that. + //$flags|= ($mode & NET_SFTP_RESUME) ? NET_SFTP_OPEN_APPEND : NET_SFTP_OPEN_TRUNCATE; + + if ($start >= 0) { + $offset = $start; + } elseif ($mode & NET_SFTP_RESUME) { + // if NET_SFTP_OPEN_APPEND worked as it should _size() wouldn't need to be called + $size = $this->_size($remote_file); + $offset = $size !== false ? $size : 0; + } else { + $offset = 0; + $flags|= NET_SFTP_OPEN_TRUNCATE; + } + + $packet = pack('Na*N2', strlen($remote_file), $remote_file, $flags, 0); if (!$this->_send_sftp_packet(NET_SFTP_OPEN, $packet)) { return false; } @@ -1041,40 +1499,47 @@ class Net_SFTP extends Net_SSH2 { $handle = substr($response, 4); break; case NET_SFTP_STATUS: - extract(unpack('Nstatus/Nlength', $this->_string_shift($response, 8))); - $this->sftp_errors[] = $this->status_codes[$status] . ': ' . $this->_string_shift($response, $length); + $this->_logError($response); return false; default: - user_error('Expected SSH_FXP_HANDLE or SSH_FXP_STATUS', E_USER_NOTICE); + user_error('Expected SSH_FXP_HANDLE or SSH_FXP_STATUS'); return false; } - $initialize = true; - // http://tools.ietf.org/html/draft-ietf-secsh-filexfer-13#section-8.2.3 - if ($mode == NET_SFTP_LOCAL_FILE) { + if ($mode & NET_SFTP_LOCAL_FILE) { if (!is_file($data)) { - user_error("$data is not a valid file", E_USER_NOTICE); + user_error("$data is not a valid file"); return false; } $fp = @fopen($data, 'rb'); if (!$fp) { return false; } - $sent = 0; $size = filesize($data); + + if ($local_start >= 0) { + fseek($fp, $local_start); + } elseif ($mode & NET_SFTP_RESUME_START) { + // do nothing + } else { + fseek($fp, $offset); + } } else { - $sent = 0; $size = strlen($data); } + $sent = 0; $size = $size < 0 ? ($size & 0x7FFFFFFF) + 0x80000000 : $size; $sftp_packet_size = 4096; // PuTTY uses 4096 + // make the SFTP packet be exactly 4096 bytes by including the bytes in the NET_SFTP_WRITE packets "header" + $sftp_packet_size-= strlen($handle) + 25; $i = 0; while ($sent < $size) { - $temp = $mode == NET_SFTP_LOCAL_FILE ? fread($fp, $sftp_packet_size) : $this->_string_shift($data, $sftp_packet_size); - $packet = pack('Na*N3a*', strlen($handle), $handle, 0, $sent, strlen($temp), $temp); + $temp = $mode & NET_SFTP_LOCAL_FILE ? fread($fp, $sftp_packet_size) : substr($data, $sent, $sftp_packet_size); + $subtemp = $offset + $sent; + $packet = pack('Na*N3a*', strlen($handle), $handle, $subtemp / 4294967296, $subtemp, strlen($temp), $temp); if (!$this->_send_sftp_packet(NET_SFTP_WRITE, $packet)) { fclose($fp); return false; @@ -1083,7 +1548,7 @@ class Net_SFTP extends Net_SSH2 { $i++; - if ($i == 50) { + if ($i == NET_SFTP_QUEUE_SIZE) { if (!$this->_read_put_responses($i)) { $i = 0; break; @@ -1092,30 +1557,19 @@ class Net_SFTP extends Net_SSH2 { } } - $this->_read_put_responses($i); + if (!$this->_read_put_responses($i)) { + if ($mode & NET_SFTP_LOCAL_FILE) { + fclose($fp); + } + $this->_close_handle($handle); + return false; + } - if ($mode == NET_SFTP_LOCAL_FILE) { + if ($mode & NET_SFTP_LOCAL_FILE) { fclose($fp); } - if (!$this->_send_sftp_packet(NET_SFTP_CLOSE, pack('Na*', strlen($handle), $handle))) { - return false; - } - - $response = $this->_get_sftp_packet(); - if ($this->packet_type != NET_SFTP_STATUS) { - user_error('Expected SSH_FXP_STATUS', E_USER_NOTICE); - return false; - } - - extract(unpack('Nstatus', $this->_string_shift($response, 4))); - if ($status != NET_SFTP_STATUS_OK) { - extract(unpack('Nlength', $this->_string_shift($response, 4))); - $this->sftp_errors[] = $this->status_codes[$status] . ': ' . $this->_string_shift($response, $length); - return false; - } - - return true; + return $this->_close_handle($handle); } /** @@ -1133,14 +1587,13 @@ class Net_SFTP extends Net_SSH2 { while ($i--) { $response = $this->_get_sftp_packet(); if ($this->packet_type != NET_SFTP_STATUS) { - user_error('Expected SSH_FXP_STATUS', E_USER_NOTICE); + user_error('Expected SSH_FXP_STATUS'); return false; } extract(unpack('Nstatus', $this->_string_shift($response, 4))); if ($status != NET_SFTP_STATUS_OK) { - extract(unpack('Nlength', $this->_string_shift($response, 4))); - $this->sftp_errors[] = $this->status_codes[$status] . ': ' . $this->_string_shift($response, $length); + $this->_logError($response, $status); break; } } @@ -1148,19 +1601,53 @@ class Net_SFTP extends Net_SSH2 { return $i < 0; } + /** + * Close handle + * + * @param String $handle + * @return Boolean + * @access private + */ + function _close_handle($handle) + { + if (!$this->_send_sftp_packet(NET_SFTP_CLOSE, pack('Na*', strlen($handle), $handle))) { + return false; + } + + // "The client MUST release all resources associated with the handle regardless of the status." + // -- http://tools.ietf.org/html/draft-ietf-secsh-filexfer-13#section-8.1.3 + $response = $this->_get_sftp_packet(); + if ($this->packet_type != NET_SFTP_STATUS) { + user_error('Expected SSH_FXP_STATUS'); + return false; + } + + extract(unpack('Nstatus', $this->_string_shift($response, 4))); + if ($status != NET_SFTP_STATUS_OK) { + $this->_logError($response, $status); + return false; + } + + return true; + } + /** * Downloads a file from the SFTP server. * * Returns a string containing the contents of $remote_file if $local_file is left undefined or a boolean false if * the operation was unsuccessful. If $local_file is defined, returns true or false depending on the success of the - * operation + * operation. + * + * $offset and $length can be used to download files in chunks. * * @param String $remote_file * @param optional String $local_file + * @param optional Integer $offset + * @param optional Integer $length * @return Mixed * @access public */ - function get($remote_file, $local_file = false) + function get($remote_file, $local_file = false, $offset = 0, $length = -1) { if (!($this->bitmap & NET_SSH2_MASK_LOGIN)) { return false; @@ -1171,11 +1658,6 @@ class Net_SFTP extends Net_SSH2 { return false; } - $size = $this->_size($remote_file); - if ($size === false) { - return false; - } - $packet = pack('Na*N2', strlen($remote_file), $remote_file, NET_SFTP_OPEN_READ, 0); if (!$this->_send_sftp_packet(NET_SFTP_OPEN, $packet)) { return false; @@ -1187,11 +1669,10 @@ class Net_SFTP extends Net_SSH2 { $handle = substr($response, 4); break; case NET_SFTP_STATUS: // presumably SSH_FX_NO_SUCH_FILE or SSH_FX_PERMISSION_DENIED - extract(unpack('Nstatus/Nlength', $this->_string_shift($response, 8))); - $this->sftp_errors[] = $this->status_codes[$status] . ': ' . $this->_string_shift($response, $length); + $this->_logError($response); return false; default: - user_error('Expected SSH_FXP_HANDLE or SSH_FXP_STATUS', E_USER_NOTICE); + user_error('Expected SSH_FXP_HANDLE or SSH_FXP_STATUS'); return false; } @@ -1204,10 +1685,14 @@ class Net_SFTP extends Net_SSH2 { $content = ''; } - $read = 0; - while ($read < $size) { - $packet = pack('Na*N3', strlen($handle), $handle, 0, $read, 1 << 20); + $start = $offset; + $size = $this->max_sftp_packet < $length || $length < 0 ? $this->max_sftp_packet : $length; + while (true) { + $packet = pack('Na*N3', strlen($handle), $handle, $offset / 4294967296, $offset, $size); if (!$this->_send_sftp_packet(NET_SFTP_READ, $packet)) { + if ($local_file !== false) { + fclose($fp); + } return false; } @@ -1215,7 +1700,7 @@ class Net_SFTP extends Net_SSH2 { switch ($this->packet_type) { case NET_SFTP_DATA: $temp = substr($response, 4); - $read+= strlen($temp); + $offset+= strlen($temp); if ($local_file === false) { $content.= $temp; } else { @@ -1223,56 +1708,51 @@ class Net_SFTP extends Net_SSH2 { } break; case NET_SFTP_STATUS: - extract(unpack('Nstatus/Nlength', $this->_string_shift($response, 8))); - $this->sftp_errors[] = $this->status_codes[$status] . ': ' . $this->_string_shift($response, $length); + // could, in theory, return false if !strlen($content) but we'll hold off for the time being + $this->_logError($response); break 2; default: - user_error('Expected SSH_FXP_DATA or SSH_FXP_STATUS', E_USER_NOTICE); + user_error('Expected SSH_FXP_DATA or SSH_FXP_STATUS'); + if ($local_file !== false) { + fclose($fp); + } return false; } + + if ($length > 0 && $length <= $offset - $start) { + break; + } } - if (!$this->_send_sftp_packet(NET_SFTP_CLOSE, pack('Na*', strlen($handle), $handle))) { + if ($length > 0 && $length <= $offset - $start) { + if ($local_file === false) { + $content = substr($content, 0, $length); + } else { + ftruncate($fp, $length); + } + } + + if ($local_file !== false) { + fclose($fp); + } + + if (!$this->_close_handle($handle)) { return false; } - $response = $this->_get_sftp_packet(); - if ($this->packet_type != NET_SFTP_STATUS) { - user_error('Expected SSH_FXP_STATUS', E_USER_NOTICE); - return false; - } - - extract(unpack('Nstatus/Nlength', $this->_string_shift($response, 8))); - $this->sftp_errors[] = $this->status_codes[$status] . ': ' . $this->_string_shift($response, $length); - - // check the status from the NET_SFTP_STATUS case in the above switch after the file has been closed - if ($status != NET_SFTP_STATUS_OK) { - return false; - } - - extract(unpack('Nstatus', $this->_string_shift($response, 4))); - if ($status != NET_SFTP_STATUS_OK) { - extract(unpack('Nlength', $this->_string_shift($response, 4))); - $this->sftp_errors[] = $this->status_codes[$status] . ': ' . $this->_string_shift($response, $length); - return false; - } - - if (isset($content)) { - return $content; - } - - fclose($fp); - return true; + // if $content isn't set that means a file was written to + return isset($content) ? $content : true; } /** * Deletes a file on the SFTP server. * * @param String $path + * @param Boolean $recursive * @return Boolean * @access public */ - function delete($path) + function delete($path, $recursive = true) { if (!($this->bitmap & NET_SSH2_MASK_LOGIN)) { return false; @@ -1290,17 +1770,93 @@ class Net_SFTP extends Net_SSH2 { $response = $this->_get_sftp_packet(); if ($this->packet_type != NET_SFTP_STATUS) { - user_error('Expected SSH_FXP_STATUS', E_USER_NOTICE); + user_error('Expected SSH_FXP_STATUS'); return false; } // if $status isn't SSH_FX_OK it's probably SSH_FX_NO_SUCH_FILE or SSH_FX_PERMISSION_DENIED extract(unpack('Nstatus', $this->_string_shift($response, 4))); if ($status != NET_SFTP_STATUS_OK) { - extract(unpack('Nlength', $this->_string_shift($response, 4))); - $this->sftp_errors[] = $this->status_codes[$status] . ': ' . $this->_string_shift($response, $length); + $this->_logError($response, $status); + if (!$recursive) { + return false; + } + $i = 0; + $result = $this->_delete_recursive($path, $i); + $this->_read_put_responses($i); + return $result; + } + + return true; + } + + /** + * Recursively deletes directories on the SFTP server + * + * Minimizes directory lookups and SSH_FXP_STATUS requests for speed. + * + * @param String $path + * @param Integer $i + * @return Boolean + * @access private + */ + function _delete_recursive($path, &$i) + { + if (!$this->_read_put_responses($i)) { return false; } + $i = 0; + $entries = $this->_list($path, true, false); + + // normally $entries would have at least . and .. but it might not if the directories + // permissions didn't allow reading + if (empty($entries)) { + return false; + } + + foreach ($entries as $filename=>$props) { + if ($filename == '.' || $filename == '..') { + continue; + } + + if (!isset($props['type'])) { + return false; + } + + $temp = $path . '/' . $filename; + if ($props['type'] == NET_SFTP_TYPE_DIRECTORY) { + if (!$this->_delete_recursive($temp, $i)) { + return false; + } + } else { + if (!$this->_send_sftp_packet(NET_SFTP_REMOVE, pack('Na*', strlen($temp), $temp))) { + return false; + } + + $i++; + + if ($i >= NET_SFTP_QUEUE_SIZE) { + if (!$this->_read_put_responses($i)) { + return false; + } + $i = 0; + } + } + } + + if (!$this->_send_sftp_packet(NET_SFTP_RMDIR, pack('Na*', strlen($path), $path))) { + return false; + } + $this->_remove_dir($path); + + $i++; + + if ($i >= NET_SFTP_QUEUE_SIZE) { + if (!$this->_read_put_responses($i)) { + return false; + } + $i = 0; + } return true; } @@ -1333,15 +1889,14 @@ class Net_SFTP extends Net_SSH2 { $response = $this->_get_sftp_packet(); if ($this->packet_type != NET_SFTP_STATUS) { - user_error('Expected SSH_FXP_STATUS', E_USER_NOTICE); + user_error('Expected SSH_FXP_STATUS'); return false; } // if $status isn't SSH_FX_OK it's probably SSH_FX_NO_SUCH_FILE or SSH_FX_PERMISSION_DENIED extract(unpack('Nstatus', $this->_string_shift($response, 4))); if ($status != NET_SFTP_STATUS_OK) { - extract(unpack('Nlength', $this->_string_shift($response, 4))); - $this->sftp_errors[] = $this->status_codes[$status] . ': ' . $this->_string_shift($response, $length); + $this->_logError($response, $status); return false; } @@ -1371,17 +1926,21 @@ class Net_SFTP extends Net_SSH2 { // (0xFFFFFFFF bytes), anyway. as such, we'll just represent all file sizes that are bigger than // 4GB as being 4GB. extract(unpack('Nupper/Nsize', $this->_string_shift($response, 8))); - if ($upper) { - $attr['size'] = 0xFFFFFFFF; - } else { - $attr['size'] = $size < 0 ? ($size & 0x7FFFFFFF) + 0x80000000 : $size; - } + $attr['size'] = $upper ? 4294967296 * $upper : 0; + $attr['size']+= $size < 0 ? ($size & 0x7FFFFFFF) + 0x80000000 : $size; break; case NET_SFTP_ATTR_UIDGID: // 0x00000002 (SFTPv3 only) $attr+= unpack('Nuid/Ngid', $this->_string_shift($response, 8)); break; case NET_SFTP_ATTR_PERMISSIONS: // 0x00000004 $attr+= unpack('Npermissions', $this->_string_shift($response, 4)); + // mode == permissions; permissions was the original array key and is retained for bc purposes. + // mode was added because that's the more industry standard terminology + $attr+= array('mode' => $attr['permissions']); + $fileType = $this->_parseMode($attr['permissions']); + if ($fileType !== false) { + $attr+= array('type' => $fileType); + } break; case NET_SFTP_ATTR_ACCESSTIME: // 0x00000008 $attr+= unpack('Natime/Nmtime', $this->_string_shift($response, 8)); @@ -1392,13 +1951,54 @@ class Net_SFTP extends Net_SSH2 { extract(unpack('Nlength', $this->_string_shift($response, 4))); $key = $this->_string_shift($response, $length); extract(unpack('Nlength', $this->_string_shift($response, 4))); - $attr[$key] = $this->_string_shift($response, $length); + $attr[$key] = $this->_string_shift($response, $length); } } } return $attr; } + /** + * Attempt to identify the file type + * + * Quoting the SFTP RFC, "Implementations MUST NOT send bits that are not defined" but they seem to anyway + * + * @param Integer $mode + * @return Integer + * @access private + */ + function _parseMode($mode) + { + // values come from http://lxr.free-electrons.com/source/include/uapi/linux/stat.h#L12 + // see, also, http://linux.die.net/man/2/stat + switch ($mode & 0170000) {// ie. 1111 0000 0000 0000 + case 0000000: // no file type specified - figure out the file type using alternative means + return false; + case 0040000: + return NET_SFTP_TYPE_DIRECTORY; + case 0100000: + return NET_SFTP_TYPE_REGULAR; + case 0120000: + return NET_SFTP_TYPE_SYMLINK; + // new types introduced in SFTPv5+ + // http://tools.ietf.org/html/draft-ietf-secsh-filexfer-05#section-5.2 + case 0010000: // named pipe (fifo) + return NET_SFTP_TYPE_FIFO; + case 0020000: // character special + return NET_SFTP_TYPE_CHAR_DEVICE; + case 0060000: // block special + return NET_SFTP_BLOCK_DEVICE; + case 0140000: // socket + return NET_SFTP_TYPE_SOCKET; + case 0160000: // whiteout + // "SPECIAL should be used for files that are of + // a known type which cannot be expressed in the protocol" + return NET_SFTP_TYPE_SPECIAL; + default: + return NET_SFTP_TYPE_UNKNOWN; + } + } + /** * Parse Longname * @@ -1417,7 +2017,8 @@ class Net_SFTP extends Net_SSH2 { function _parseLongname($longname) { // http://en.wikipedia.org/wiki/Unix_file_types - if (preg_match('#^[^/]([r-][w-][x-]){3}#', $longname)) { + // http://en.wikipedia.org/wiki/Filesystem_permissions#Notation_of_traditional_Unix_permissions + if (preg_match('#^[^/]([r-][w-][xstST-]){3}#', $longname)) { switch ($longname[0]) { case '-': return NET_SFTP_TYPE_REGULAR; @@ -1456,10 +2057,17 @@ class Net_SFTP extends Net_SSH2 { $stop = strtok(microtime(), ' ') + strtok(''); if (defined('NET_SFTP_LOGGING')) { - $this->packet_type_log[] = '-> ' . $this->packet_types[$type] . - ' (' . round($stop - $start, 4) . 's)'; - if (NET_SFTP_LOGGING == NET_SFTP_LOG_COMPLEX) { - $this->packet_log[] = $data; + $packet_type = '-> ' . $this->packet_types[$type] . + ' (' . round($stop - $start, 4) . 's)'; + if (NET_SFTP_LOGGING == NET_SFTP_LOG_REALTIME) { + echo "
\r\n" . $this->_format_log(array($data), array($packet_type)) . "\r\n
\r\n"; + flush(); + ob_flush(); + } else { + $this->packet_type_log[] = $packet_type; + if (NET_SFTP_LOGGING == NET_SFTP_LOG_COMPLEX) { + $this->packet_log[] = $data; + } } } @@ -1481,6 +2089,8 @@ class Net_SFTP extends Net_SSH2 { */ function _get_sftp_packet() { + $this->curTimeout = false; + $start = strtok(microtime(), ' ') + strtok(''); // http://php.net/microtime#61838 // SFTP packet length @@ -1523,10 +2133,17 @@ class Net_SFTP extends Net_SSH2 { $packet = $this->_string_shift($this->packet_buffer, $length); if (defined('NET_SFTP_LOGGING')) { - $this->packet_type_log[] = '<- ' . $this->packet_types[$this->packet_type] . - ' (' . round($stop - $start, 4) . 's)'; - if (NET_SFTP_LOGGING == NET_SFTP_LOG_COMPLEX) { - $this->packet_log[] = $packet; + $packet_type = '<- ' . $this->packet_types[$this->packet_type] . + ' (' . round($stop - $start, 4) . 's)'; + if (NET_SFTP_LOGGING == NET_SFTP_LOG_REALTIME) { + echo "
\r\n" . $this->_format_log(array($packet), array($packet_type)) . "\r\n
\r\n"; + flush(); + ob_flush(); + } else { + $this->packet_type_log[] = $packet_type; + if (NET_SFTP_LOGGING == NET_SFTP_LOG_COMPLEX) { + $this->packet_log[] = $packet; + } } } @@ -1606,4 +2223,4 @@ class Net_SFTP extends Net_SSH2 { $this->pwd = false; parent::_disconnect($reason); } -} \ No newline at end of file +} diff --git a/lam/lib/3rdParty/phpseclib/Net/SSH1.php b/lam/lib/3rdParty/phpseclib/Net/SSH1.php index 8a0281a4..0a6aa908 100644 --- a/lam/lib/3rdParty/phpseclib/Net/SSH1.php +++ b/lam/lib/3rdParty/phpseclib/Net/SSH1.php @@ -1,5 +1,4 @@ * * - * More information on the SSHv1 specification can be found by reading + * More information on the SSHv1 specification can be found by reading * {@link http://www.snailbook.com/docs/protocol-1.5.txt protocol-1.5.txt}. * * LICENSE: Permission is hereby granted, free of charge, to any person obtaining a copy @@ -45,10 +44,10 @@ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: - * + * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. - * + * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE @@ -57,47 +56,14 @@ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. * - * @category Net - * @package Net_SSH1 - * @author Jim Wigginton - * @copyright MMVII Jim Wigginton - * @license http://www.opensource.org/licenses/mit-license.html MIT License - * @version $Id$ - * @link http://phpseclib.sourceforge.net + * @category Net + * @package Net_SSH1 + * @author Jim Wigginton + * @copyright MMVII Jim Wigginton + * @license http://www.opensource.org/licenses/mit-license.html MIT License + * @link http://phpseclib.sourceforge.net */ -/** - * Include Math_BigInteger - * - * Used to do RSA encryption. - */ -require_once('Math/BigInteger.php'); - -/** - * Include Crypt_Null - */ -//require_once('Crypt/Null.php'); - -/** - * Include Crypt_DES - */ -require_once('Crypt/DES.php'); - -/** - * Include Crypt_TripleDES - */ -require_once('Crypt/TripleDES.php'); - -/** - * Include Crypt_RC4 - */ -require_once('Crypt/RC4.php'); - -/** - * Include Crypt_Random - */ -require_once('Crypt/Random.php'); - /**#@+ * Encryption Methods * @@ -232,6 +198,14 @@ define('NET_SSH1_LOG_SIMPLE', 1); * Returns the message content */ define('NET_SSH1_LOG_COMPLEX', 2); +/** + * Outputs the content real-time + */ +define('NET_SSH1_LOG_REALTIME', 3); +/** + * Dumps the content real-time to a file + */ +define('NET_SSH1_LOG_REALTIME_FILE', 4); /**#@-*/ /**#@+ @@ -251,12 +225,13 @@ define('NET_SSH1_READ_REGEX', 2); /** * Pure-PHP implementation of SSHv1. * + * @package Net_SSH1 * @author Jim Wigginton * @version 0.1.0 * @access public - * @package Net_SSH1 */ -class Net_SSH1 { +class Net_SSH1 +{ /** * The SSH identifier * @@ -407,6 +382,33 @@ class Net_SSH1 { */ var $message_log = array(); + /** + * Real-time log file pointer + * + * @see Net_SSH1::_append_log() + * @var Resource + * @access private + */ + var $realtime_log_file; + + /** + * Real-time log file size + * + * @see Net_SSH1::_append_log() + * @var Integer + * @access private + */ + var $realtime_log_size; + + /** + * Real-time log file wrap boolean + * + * @see Net_SSH1::_append_log() + * @var Boolean + * @access private + */ + var $realtime_log_wrap; + /** * Interactive Buffer * @@ -414,7 +416,47 @@ class Net_SSH1 { * @var Array * @access private */ - var $interactive_buffer = ''; + var $interactiveBuffer = ''; + + /** + * Timeout + * + * @see Net_SSH1::setTimeout() + * @access private + */ + var $timeout; + + /** + * Current Timeout + * + * @see Net_SSH1::_get_channel_packet() + * @access private + */ + var $curTimeout; + + /** + * Log Boundary + * + * @see Net_SSH1::_format_log + * @access private + */ + var $log_boundary = ':'; + + /** + * Log Long Width + * + * @see Net_SSH1::_format_log + * @access private + */ + var $log_long_width = 65; + + /** + * Log Short Width + * + * @see Net_SSH1::_format_log + * @access private + */ + var $log_short_width = 16; /** * Default Constructor. @@ -430,6 +472,19 @@ class Net_SSH1 { */ function Net_SSH1($host, $port = 22, $timeout = 10, $cipher = NET_SSH1_CIPHER_3DES) { + if (!class_exists('Math_BigInteger')) { + include_once 'Math/BigInteger.php'; + } + + // Include Crypt_Random + // the class_exists() will only be called if the crypt_random_string function hasn't been defined and + // will trigger a call to __autoload() if you're wanting to auto-load classes + // call function_exists() a second time to stop the include_once from being called outside + // of the auto loader + if (!function_exists('crypt_random_string') && !class_exists('Crypt_Random') && !function_exists('crypt_random_string')) { + include_once 'Crypt/Random.php'; + } + $this->protocol_flags = array( 1 => 'NET_SSH1_MSG_DISCONNECT', 2 => 'NET_SSH1_SMSG_PUBLIC_KEY', @@ -453,28 +508,23 @@ class Net_SSH1 { $this->fsock = @fsockopen($host, $port, $errno, $errstr, $timeout); if (!$this->fsock) { - user_error(rtrim("Cannot connect to $host. Error $errno. $errstr"), E_USER_NOTICE); + user_error(rtrim("Cannot connect to $host. Error $errno. $errstr")); return; } $this->server_identification = $init_line = fgets($this->fsock, 255); if (defined('NET_SSH1_LOGGING')) { - $this->protocol_flags_log[] = '<-'; - $this->protocol_flags_log[] = '->'; - - if (NET_SSH1_LOGGING == NET_SSH1_LOG_COMPLEX) { - $this->message_log[] = $this->server_identification; - $this->message_log[] = $this->identifier . "\r\n"; - } + $this->_append_log('<-', $this->server_identification); + $this->_append_log('->', $this->identifier . "\r\n"); } if (!preg_match('#SSH-([0-9\.]+)-(.+)#', $init_line, $parts)) { - user_error('Can only connect to SSH servers', E_USER_NOTICE); + user_error('Can only connect to SSH servers'); return; } if ($parts[1][0] != 1) { - user_error("Cannot connect to SSH $parts[1] servers", E_USER_NOTICE); + user_error("Cannot connect to SSH $parts[1] servers"); return; } @@ -482,7 +532,7 @@ class Net_SSH1 { $response = $this->_get_binary_packet(); if ($response[NET_SSH1_RESPONSE_TYPE] != NET_SSH1_SMSG_PUBLIC_KEY) { - user_error('Expected SSH_SMSG_PUBLIC_KEY', E_USER_NOTICE); + user_error('Expected SSH_SMSG_PUBLIC_KEY'); return; } @@ -528,10 +578,7 @@ class Net_SSH1 { $session_id = pack('H*', md5($host_key_public_modulus->toBytes() . $server_key_public_modulus->toBytes() . $anti_spoofing_cookie)); - $session_key = ''; - for ($i = 0; $i < 32; $i++) { - $session_key.= chr(crypt_random(0, 255)); - } + $session_key = crypt_random_string(32); $double_encrypted_session_key = $session_key ^ str_pad($session_id, 32, chr(0)); if ($server_key_public_modulus->compare($host_key_public_modulus) < 0) { @@ -570,7 +617,7 @@ class Net_SSH1 { $data = pack('C2a*na*N', NET_SSH1_CMSG_SESSION_KEY, $cipher, $anti_spoofing_cookie, 8 * strlen($double_encrypted_session_key), $double_encrypted_session_key, 0); if (!$this->_send_binary_packet($data)) { - user_error('Error sending SSH_CMSG_SESSION_KEY', E_USER_NOTICE); + user_error('Error sending SSH_CMSG_SESSION_KEY'); return; } @@ -579,18 +626,27 @@ class Net_SSH1 { // $this->crypto = new Crypt_Null(); // break; case NET_SSH1_CIPHER_DES: + if (!class_exists('Crypt_DES')) { + include_once 'Crypt/DES.php'; + } $this->crypto = new Crypt_DES(); $this->crypto->disablePadding(); $this->crypto->enableContinuousBuffer(); $this->crypto->setKey(substr($session_key, 0, 8)); break; case NET_SSH1_CIPHER_3DES: + if (!class_exists('Crypt_TripleDES')) { + include_once 'Crypt/TripleDES.php'; + } $this->crypto = new Crypt_TripleDES(CRYPT_DES_MODE_3CBC); $this->crypto->disablePadding(); $this->crypto->enableContinuousBuffer(); $this->crypto->setKey(substr($session_key, 0, 24)); break; //case NET_SSH1_CIPHER_RC4: + // if (!class_exists('Crypt_RC4')) { + // include_once('Crypt/RC4.php'); + // } // $this->crypto = new Crypt_RC4(); // $this->crypto->enableContinuousBuffer(); // $this->crypto->setKey(substr($session_key, 0, 16)); @@ -600,7 +656,7 @@ class Net_SSH1 { $response = $this->_get_binary_packet(); if ($response[NET_SSH1_RESPONSE_TYPE] != NET_SSH1_SMSG_SUCCESS) { - user_error('Expected SSH_SMSG_SUCCESS', E_USER_NOTICE); + user_error('Expected SSH_SMSG_SUCCESS'); return; } @@ -624,46 +680,65 @@ class Net_SSH1 { $data = pack('CNa*', NET_SSH1_CMSG_USER, strlen($username), $username); if (!$this->_send_binary_packet($data)) { - user_error('Error sending SSH_CMSG_USER', E_USER_NOTICE); + user_error('Error sending SSH_CMSG_USER'); return false; } $response = $this->_get_binary_packet(); + if ($response === true) { + return false; + } if ($response[NET_SSH1_RESPONSE_TYPE] == NET_SSH1_SMSG_SUCCESS) { $this->bitmap |= NET_SSH1_MASK_LOGIN; return true; } else if ($response[NET_SSH1_RESPONSE_TYPE] != NET_SSH1_SMSG_FAILURE) { - user_error('Expected SSH_SMSG_SUCCESS or SSH_SMSG_FAILURE', E_USER_NOTICE); + user_error('Expected SSH_SMSG_SUCCESS or SSH_SMSG_FAILURE'); return false; } $data = pack('CNa*', NET_SSH1_CMSG_AUTH_PASSWORD, strlen($password), $password); if (!$this->_send_binary_packet($data)) { - user_error('Error sending SSH_CMSG_AUTH_PASSWORD', E_USER_NOTICE); + user_error('Error sending SSH_CMSG_AUTH_PASSWORD'); return false; } // remove the username and password from the last logged packet if (defined('NET_SSH1_LOGGING') && NET_SSH1_LOGGING == NET_SSH1_LOG_COMPLEX) { $data = pack('CNa*', NET_SSH1_CMSG_AUTH_PASSWORD, strlen('password'), 'password'); - $this->message_log[count($this->message_log) - 1] = $data; // zzzzz + $this->message_log[count($this->message_log) - 1] = $data; } $response = $this->_get_binary_packet(); + if ($response === true) { + return false; + } if ($response[NET_SSH1_RESPONSE_TYPE] == NET_SSH1_SMSG_SUCCESS) { $this->bitmap |= NET_SSH1_MASK_LOGIN; return true; } else if ($response[NET_SSH1_RESPONSE_TYPE] == NET_SSH1_SMSG_FAILURE) { return false; } else { - user_error('Expected SSH_SMSG_SUCCESS or SSH_SMSG_FAILURE', E_USER_NOTICE); + user_error('Expected SSH_SMSG_SUCCESS or SSH_SMSG_FAILURE'); return false; } } + /** + * Set Timeout + * + * $ssh->exec('ping 127.0.0.1'); on a Linux host will never return and will run indefinitely. setTimeout() makes it so it'll timeout. + * Setting $timeout to false or 0 will mean there is no timeout. + * + * @param Mixed $timeout + */ + function setTimeout($timeout) + { + $this->timeout = $this->curTimeout = $timeout; + } + /** * Executes a command on a non-interactive shell, returns the output, and quits. * @@ -687,14 +762,14 @@ class Net_SSH1 { function exec($cmd, $block = true) { if (!($this->bitmap & NET_SSH1_MASK_LOGIN)) { - user_error('Operation disallowed prior to login()', E_USER_NOTICE); + user_error('Operation disallowed prior to login()'); return false; } $data = pack('CNa*', NET_SSH1_CMSG_EXEC_CMD, strlen($cmd), $cmd); if (!$this->_send_binary_packet($data)) { - user_error('Error sending SSH_CMSG_EXEC_CMD', E_USER_NOTICE); + user_error('Error sending SSH_CMSG_EXEC_CMD'); return false; } @@ -705,10 +780,12 @@ class Net_SSH1 { $output = ''; $response = $this->_get_binary_packet(); - do { - $output.= substr($response[NET_SSH1_RESPONSE_DATA], 4); - $response = $this->_get_binary_packet(); - } while ($response[NET_SSH1_RESPONSE_TYPE] != NET_SSH1_SMSG_EXITSTATUS); + if ($response !== false) { + do { + $output.= substr($response[NET_SSH1_RESPONSE_DATA], 4); + $response = $this->_get_binary_packet(); + } while (is_array($response) && $response[NET_SSH1_RESPONSE_TYPE] != NET_SSH1_SMSG_EXITSTATUS); + } $data = pack('C', NET_SSH1_CMSG_EXIT_CONFIRMATION); @@ -739,21 +816,24 @@ class Net_SSH1 { $data = pack('CNa*N4C', NET_SSH1_CMSG_REQUEST_PTY, strlen('vt100'), 'vt100', 24, 80, 0, 0, NET_SSH1_TTY_OP_END); if (!$this->_send_binary_packet($data)) { - user_error('Error sending SSH_CMSG_REQUEST_PTY', E_USER_NOTICE); + user_error('Error sending SSH_CMSG_REQUEST_PTY'); return false; } $response = $this->_get_binary_packet(); + if ($response === true) { + return false; + } if ($response[NET_SSH1_RESPONSE_TYPE] != NET_SSH1_SMSG_SUCCESS) { - user_error('Expected SSH_SMSG_SUCCESS', E_USER_NOTICE); + user_error('Expected SSH_SMSG_SUCCESS'); return false; } $data = pack('C', NET_SSH1_CMSG_EXEC_SHELL); if (!$this->_send_binary_packet($data)) { - user_error('Error sending SSH_CMSG_EXEC_SHELL', E_USER_NOTICE); + user_error('Error sending SSH_CMSG_EXEC_SHELL'); return false; } @@ -792,12 +872,12 @@ class Net_SSH1 { function read($expect, $mode = NET_SSH1_READ_SIMPLE) { if (!($this->bitmap & NET_SSH1_MASK_LOGIN)) { - user_error('Operation disallowed prior to login()', E_USER_NOTICE); + user_error('Operation disallowed prior to login()'); return false; } if (!($this->bitmap & NET_SSH1_MASK_SHELL) && !$this->_initShell()) { - user_error('Unable to initiate an interactive shell session', E_USER_NOTICE); + user_error('Unable to initiate an interactive shell session'); return false; } @@ -805,13 +885,17 @@ class Net_SSH1 { while (true) { if ($mode == NET_SSH1_READ_REGEX) { preg_match($expect, $this->interactiveBuffer, $matches); - $match = $matches[0]; + $match = isset($matches[0]) ? $matches[0] : ''; } - $pos = strpos($this->interactiveBuffer, $match); + $pos = strlen($match) ? strpos($this->interactiveBuffer, $match) : false; if ($pos !== false) { return $this->_string_shift($this->interactiveBuffer, $pos + strlen($match)); } $response = $this->_get_binary_packet(); + + if ($response === true) { + return $this->_string_shift($this->interactiveBuffer, strlen($this->interactiveBuffer)); + } $this->interactiveBuffer.= substr($response[NET_SSH1_RESPONSE_DATA], 4); } } @@ -827,19 +911,19 @@ class Net_SSH1 { function interactiveWrite($cmd) { if (!($this->bitmap & NET_SSH1_MASK_LOGIN)) { - user_error('Operation disallowed prior to login()', E_USER_NOTICE); + user_error('Operation disallowed prior to login()'); return false; } if (!($this->bitmap & NET_SSH1_MASK_SHELL) && !$this->_initShell()) { - user_error('Unable to initiate an interactive shell session', E_USER_NOTICE); + user_error('Unable to initiate an interactive shell session'); return false; } $data = pack('CNa*', NET_SSH1_CMSG_STDIN_DATA, strlen($cmd), $cmd); if (!$this->_send_binary_packet($data)) { - user_error('Error sending SSH_CMSG_STDIN', E_USER_NOTICE); + user_error('Error sending SSH_CMSG_STDIN'); return false; } @@ -850,7 +934,7 @@ class Net_SSH1 { * Returns the output of an interactive shell when no more output is available. * * Requires PHP 4.3.0 or later due to the use of the stream_select() function. If you see stuff like - * "00m", you're seeing ANSI escape codes. According to + * "^[[00m", you're seeing ANSI escape codes. According to * {@link http://support.microsoft.com/kb/101875 How to Enable ANSI.SYS in a Command Window}, "Windows NT * does not support ANSI escape sequences in Win32 Console applications", so if you're a Windows user, * there's not going to be much recourse. @@ -862,12 +946,12 @@ class Net_SSH1 { function interactiveRead() { if (!($this->bitmap & NET_SSH1_MASK_LOGIN)) { - user_error('Operation disallowed prior to login()', E_USER_NOTICE); + user_error('Operation disallowed prior to login()'); return false; } if (!($this->bitmap & NET_SSH1_MASK_SHELL) && !$this->_initShell()) { - user_error('Unable to initiate an interactive shell session', E_USER_NOTICE); + user_error('Unable to initiate an interactive shell session'); return false; } @@ -915,8 +999,11 @@ class Net_SSH1 { if ($this->bitmap) { $data = pack('C', NET_SSH1_CMSG_EOF); $this->_send_binary_packet($data); - + /* $response = $this->_get_binary_packet(); + if ($response === true) { + $response = array(NET_SSH1_RESPONSE_TYPE => -1); + } switch ($response[NET_SSH1_RESPONSE_TYPE]) { case NET_SSH1_SMSG_EXITSTATUS: $data = pack('C', NET_SSH1_CMSG_EXIT_CONFIRMATION); @@ -924,6 +1011,8 @@ class Net_SSH1 { default: $data = pack('CNa*', NET_SSH1_MSG_DISCONNECT, strlen($msg), $msg); } + */ + $data = pack('CNa*', NET_SSH1_MSG_DISCONNECT, strlen($msg), $msg); $this->_send_binary_packet($data); fclose($this->fsock); @@ -946,20 +1035,40 @@ class Net_SSH1 { function _get_binary_packet() { if (feof($this->fsock)) { - //user_error('connection closed prematurely', E_USER_NOTICE); + //user_error('connection closed prematurely'); return false; } + if ($this->curTimeout) { + $read = array($this->fsock); + $write = $except = null; + + $start = strtok(microtime(), ' ') + strtok(''); // http://php.net/microtime#61838 + $sec = floor($this->curTimeout); + $usec = 1000000 * ($this->curTimeout - $sec); + // on windows this returns a "Warning: Invalid CRT parameters detected" error + if (!@stream_select($read, $write, $except, $sec, $usec) && !count($read)) { + //$this->_disconnect('Timeout'); + return true; + } + $elapsed = strtok(microtime(), ' ') + strtok('') - $start; + $this->curTimeout-= $elapsed; + } + + $start = strtok(microtime(), ' ') + strtok(''); // http://php.net/microtime#61838 $temp = unpack('Nlength', fread($this->fsock, 4)); $padding_length = 8 - ($temp['length'] & 7); $length = $temp['length'] + $padding_length; - $start = strtok(microtime(), ' ') + strtok(''); // http://php.net/microtime#61838 - $raw = fread($this->fsock, $length); + while ($length > 0) { + $temp = fread($this->fsock, $length); + $raw.= $temp; + $length-= strlen($temp); + } $stop = strtok(microtime(), ' ') + strtok(''); - if ($this->crypto !== false) { + if (strlen($raw) && $this->crypto !== false) { $raw = $this->crypto->decrypt($raw); } @@ -970,7 +1079,7 @@ class Net_SSH1 { $temp = unpack('Ncrc', substr($raw, -4)); //if ( $temp['crc'] != $this->_crc($padding . $type . $data) ) { - // user_error('Bad CRC in packet from server', E_USER_NOTICE); + // user_error('Bad CRC in packet from server'); // return false; //} @@ -978,11 +1087,9 @@ class Net_SSH1 { if (defined('NET_SSH1_LOGGING')) { $temp = isset($this->protocol_flags[$type]) ? $this->protocol_flags[$type] : 'UNKNOWN'; - $this->protocol_flags_log[] = '<- ' . $temp . - ' (' . round($stop - $start, 4) . 's)'; - if (NET_SSH1_LOGGING == NET_SSH1_LOG_COMPLEX) { - $this->message_log[] = $data; - } + $temp = '<- ' . $temp . + ' (' . round($stop - $start, 4) . 's)'; + $this->_append_log($temp, $data); } return array( @@ -1001,29 +1108,18 @@ class Net_SSH1 { * @return Boolean * @access private */ - function _send_binary_packet($data) { + function _send_binary_packet($data) + { if (feof($this->fsock)) { - //user_error('connection closed prematurely', E_USER_NOTICE); + //user_error('connection closed prematurely'); return false; } - if (defined('NET_SSH1_LOGGING')) { - $temp = isset($this->protocol_flags[ord($data[0])]) ? $this->protocol_flags[ord($data[0])] : 'UNKNOWN'; - $this->protocol_flags_log[] = '-> ' . $temp . - ' (' . round($stop - $start, 4) . 's)'; - if (NET_SSH1_LOGGING == NET_SSH1_LOG_COMPLEX) { - $this->message_log[] = substr($data, 1); - } - } - $length = strlen($data) + 4; - $padding_length = 8 - ($length & 7); - $padding = ''; - for ($i = 0; $i < $padding_length; $i++) { - $padding.= chr(crypt_random(0, 255)); - } + $padding = crypt_random_string(8 - ($length & 7)); + $orig = $data; $data = $padding . $data; $data.= pack('N', $this->_crc($data)); @@ -1037,6 +1133,13 @@ class Net_SSH1 { $result = strlen($packet) == fputs($this->fsock, $packet); $stop = strtok(microtime(), ' ') + strtok(''); + if (defined('NET_SSH1_LOGGING')) { + $temp = isset($this->protocol_flags[ord($orig[0])]) ? $this->protocol_flags[ord($orig[0])] : 'UNKNOWN'; + $temp = '-> ' . $temp . + ' (' . round($stop - $start, 4) . 's)'; + $this->_append_log($temp, $orig); + } + return $result; } @@ -1174,7 +1277,7 @@ class Net_SSH1 { { /* if (!class_exists('Crypt_RSA')) { - require_once('Crypt/RSA.php'); + include_once 'Crypt/RSA.php'; } $rsa = new Crypt_RSA(); @@ -1196,13 +1299,15 @@ class Net_SSH1 { // Presumably the part of PKCS#1 they're refering to is "Section 7.2.1 Encryption Operation", // under "7.2 RSAES-PKCS1-v1.5" and "7 Encryption schemes" of the following URL: // ftp://ftp.rsasecurity.com/pub/pkcs/pkcs-1/pkcs-1v2-1.pdf - $temp = chr(0) . chr(2); $modulus = $key[1]->toBytes(); $length = strlen($modulus) - strlen($m) - 3; - for ($i = 0; $i < $length; $i++) { - $temp.= chr(crypt_random(1, 255)); + $random = ''; + while (strlen($random) != $length) { + $block = crypt_random_string($length - strlen($random)); + $block = str_replace("\x00", '', $block); + $random.= $block; } - $temp.= chr(0) . $m; + $temp = chr(0) . chr(2) . $random . chr(0) . $m; $m = new Math_BigInteger($temp, 256); $m = $m->modPow($key[0], $key[1]); @@ -1237,7 +1342,7 @@ class Net_SSH1 { /** * Returns a log of the packets that have been sent and received. * - * Returns a string if NET_SSH2_LOGGING == NET_SSH2_LOG_COMPLEX, an array if NET_SSH2_LOGGING == NET_SSH2_LOG_SIMPLE and false if !defined('NET_SSH2_LOGGING') + * Returns a string if NET_SSH1_LOGGING == NET_SSH1_LOG_COMPLEX, an array if NET_SSH1_LOGGING == NET_SSH1_LOG_SIMPLE and false if !defined('NET_SSH1_LOGGING') * * @access public * @return String or Array @@ -1270,38 +1375,44 @@ class Net_SSH1 { */ function _format_log($message_log, $message_number_log) { - static $boundary = ':', $long_width = 65, $short_width = 16; - $output = ''; for ($i = 0; $i < count($message_log); $i++) { $output.= $message_number_log[$i] . "\r\n"; $current_log = $message_log[$i]; $j = 0; do { - if (!empty($current_log)) { + if (strlen($current_log)) { $output.= str_pad(dechex($j), 7, '0', STR_PAD_LEFT) . '0 '; } - $fragment = $this->_string_shift($current_log, $short_width); - $hex = substr( - preg_replace( - '#(.)#es', - '"' . $boundary . '" . str_pad(dechex(ord(substr("\\1", -1))), 2, "0", STR_PAD_LEFT)', - $fragment), - strlen($boundary) - ); + $fragment = $this->_string_shift($current_log, $this->log_short_width); + $hex = substr(preg_replace_callback('#.#s', array($this, '_format_log_helper'), $fragment), strlen($this->log_boundary)); // replace non ASCII printable characters with dots // http://en.wikipedia.org/wiki/ASCII#ASCII_printable_characters // also replace < with a . since < messes up the output on web browsers $raw = preg_replace('#[^\x20-\x7E]|<#', '.', $fragment); - $output.= str_pad($hex, $long_width - $short_width, ' ') . $raw . "\r\n"; + $output.= str_pad($hex, $this->log_long_width - $this->log_short_width, ' ') . $raw . "\r\n"; $j++; - } while (!empty($current_log)); + } while (strlen($current_log)); $output.= "\r\n"; } return $output; } + /** + * Helper function for _format_log + * + * For use with preg_replace_callback() + * + * @param Array $matches + * @access private + * @return String + */ + function _format_log_helper($matches) + { + return $this->log_boundary . str_pad(dechex(ord($matches[0])), 2, '0', STR_PAD_LEFT); + } + /** * Return the server key public exponent * @@ -1404,5 +1515,68 @@ class Net_SSH1 { { return rtrim($this->server_identification); } + + /** + * Logs data packets + * + * Makes sure that only the last 1MB worth of packets will be logged + * + * @param String $data + * @access private + */ + function _append_log($protocol_flags, $message) + { + switch (NET_SSH1_LOGGING) { + // useful for benchmarks + case NET_SSH1_LOG_SIMPLE: + $this->protocol_flags_log[] = $protocol_flags; + break; + // the most useful log for SSH1 + case NET_SSH1_LOG_COMPLEX: + $this->protocol_flags_log[] = $protocol_flags; + $this->_string_shift($message); + $this->log_size+= strlen($message); + $this->message_log[] = $message; + while ($this->log_size > NET_SSH1_LOG_MAX_SIZE) { + $this->log_size-= strlen(array_shift($this->message_log)); + array_shift($this->protocol_flags_log); + } + break; + // dump the output out realtime; packets may be interspersed with non packets, + // passwords won't be filtered out and select other packets may not be correctly + // identified + case NET_SSH1_LOG_REALTIME: + echo "
\r\n" . $this->_format_log(array($message), array($protocol_flags)) . "\r\n
\r\n"; + @flush(); + @ob_flush(); + break; + // basically the same thing as NET_SSH1_LOG_REALTIME with the caveat that NET_SSH1_LOG_REALTIME_FILE + // needs to be defined and that the resultant log file will be capped out at NET_SSH1_LOG_MAX_SIZE. + // the earliest part of the log file is denoted by the first <<< START >>> and is not going to necessarily + // at the beginning of the file + case NET_SSH1_LOG_REALTIME_FILE: + if (!isset($this->realtime_log_file)) { + // PHP doesn't seem to like using constants in fopen() + $filename = NET_SSH1_LOG_REALTIME_FILE; + $fp = fopen($filename, 'w'); + $this->realtime_log_file = $fp; + } + if (!is_resource($this->realtime_log_file)) { + break; + } + $entry = $this->_format_log(array($message), array($protocol_flags)); + if ($this->realtime_log_wrap) { + $temp = "<<< START >>>\r\n"; + $entry.= $temp; + fseek($this->realtime_log_file, ftell($this->realtime_log_file) - strlen($temp)); + } + $this->realtime_log_size+= strlen($entry); + if ($this->realtime_log_size > NET_SSH1_LOG_MAX_SIZE) { + fseek($this->realtime_log_file, 0); + $this->realtime_log_size = strlen($entry); + $this->realtime_log_wrap = true; + } + fputs($this->realtime_log_file, $entry); + } + } } -?> \ No newline at end of file diff --git a/lam/lib/3rdParty/phpseclib/Net/SSH2.php b/lam/lib/3rdParty/phpseclib/Net/SSH2.php index 3f554a2b..2fddb68a 100644 --- a/lam/lib/3rdParty/phpseclib/Net/SSH2.php +++ b/lam/lib/3rdParty/phpseclib/Net/SSH2.php @@ -1,5 +1,4 @@ - * @copyright MMVII Jim Wigginton - * @license http://www.opensource.org/licenses/mit-license.html MIT License - * @version $Id$ - * @link http://phpseclib.sourceforge.net + * @category Net + * @package Net_SSH2 + * @author Jim Wigginton + * @copyright MMVII Jim Wigginton + * @license http://www.opensource.org/licenses/mit-license.html MIT License + * @link http://phpseclib.sourceforge.net */ -/** - * Include Math_BigInteger - * - * Used to do Diffie-Hellman key exchange and DSA/RSA signature verification. - */ -require_once('Math/BigInteger.php'); - -/** - * Include Crypt_Random - */ -require_once('Crypt/Random.php'); - -/** - * Include Crypt_Hash - */ -require_once('Crypt/Hash.php'); - -/** - * Include Crypt_TripleDES - */ -require_once('Crypt/TripleDES.php'); - -/** - * Include Crypt_RC4 - */ -require_once('Crypt/RC4.php'); - -/** - * Include Crypt_AES - */ -require_once('Crypt/AES.php'); - /**#@+ * Execution Bitmap Masks * * @see Net_SSH2::bitmap * @access private */ -define('NET_SSH2_MASK_CONSTRUCTOR', 0x00000001); -define('NET_SSH2_MASK_LOGIN', 0x00000002); -define('NET_SSH2_MASK_SHELL', 0x00000004); +define('NET_SSH2_MASK_CONSTRUCTOR', 0x00000001); +define('NET_SSH2_MASK_LOGIN_REQ', 0x00000002); +define('NET_SSH2_MASK_LOGIN', 0x00000004); +define('NET_SSH2_MASK_SHELL', 0x00000008); +define('NET_SSH2_MASK_WINDOW_ADJUST', 0X00000010); /**#@-*/ /**#@+ @@ -127,8 +95,9 @@ define('NET_SSH2_MASK_SHELL', 0x00000004); * @see Net_SSH2::_get_channel_packet() * @access private */ -define('NET_SSH2_CHANNEL_EXEC', 0); // PuTTy uses 0x100 -define('NET_SSH2_CHANNEL_SHELL',1); +define('NET_SSH2_CHANNEL_EXEC', 0); // PuTTy uses 0x100 +define('NET_SSH2_CHANNEL_SHELL', 1); +define('NET_SSH2_CHANNEL_SUBSYSTEM', 2); /**#@-*/ /**#@+ @@ -143,6 +112,14 @@ define('NET_SSH2_LOG_SIMPLE', 1); * Returns the message content */ define('NET_SSH2_LOG_COMPLEX', 2); +/** + * Outputs the content real-time + */ +define('NET_SSH2_LOG_REALTIME', 3); +/** + * Dumps the content real-time to a file + */ +define('NET_SSH2_LOG_REALTIME_FILE', 4); /**#@-*/ /**#@+ @@ -157,24 +134,29 @@ define('NET_SSH2_READ_SIMPLE', 1); * Returns when a string matching the regular expression $expect is found */ define('NET_SSH2_READ_REGEX', 2); +/** + * Make sure that the log never gets larger than this + */ +define('NET_SSH2_LOG_MAX_SIZE', 1024 * 1024); /**#@-*/ /** * Pure-PHP implementation of SSHv2. * + * @package Net_SSH2 * @author Jim Wigginton * @version 0.1.0 * @access public - * @package Net_SSH2 */ -class Net_SSH2 { +class Net_SSH2 +{ /** * The SSH identifier * * @var String * @access private */ - var $identifier = 'SSH-2.0-phpseclib_0.2'; + var $identifier; /** * The Socket Object @@ -187,7 +169,7 @@ class Net_SSH2 { /** * Execution Bitmap * - * The bits that are set reprsent functions that have been called already. This is used to determine + * The bits that are set represent functions that have been called already. This is used to determine * if a requisite function has been successfully executed. If not, an error should be thrown. * * @var Integer @@ -552,7 +534,7 @@ class Net_SSH2 { /** * The Window Size * - * Bytes the other party can send before it must wait for the window to be adjusted (0x7FFFFFFF = 4GB) + * Bytes the other party can send before it must wait for the window to be adjusted (0x7FFFFFFF = 2GB) * * @var Integer * @see Net_SSH2::_send_channel_packet() @@ -562,7 +544,7 @@ class Net_SSH2 { var $window_size = 0x7FFFFFFF; /** - * Window size + * Window size, server to client * * Window size indexed by channel * @@ -570,6 +552,17 @@ class Net_SSH2 { * @var Array * @access private */ + var $window_size_server_to_client = array(); + + /** + * Window size, client to server + * + * Window size indexed by channel + * + * @see Net_SSH2::_get_channel_packet() + * @var Array + * @access private + */ var $window_size_client_to_server = array(); /** @@ -603,6 +596,181 @@ class Net_SSH2 { */ var $interactiveBuffer = ''; + /** + * Current log size + * + * Should never exceed NET_SSH2_LOG_MAX_SIZE + * + * @see Net_SSH2::_send_binary_packet() + * @see Net_SSH2::_get_binary_packet() + * @var Integer + * @access private + */ + var $log_size; + + /** + * Timeout + * + * @see Net_SSH2::setTimeout() + * @access private + */ + var $timeout; + + /** + * Current Timeout + * + * @see Net_SSH2::_get_channel_packet() + * @access private + */ + var $curTimeout; + + /** + * Real-time log file pointer + * + * @see Net_SSH2::_append_log() + * @var Resource + * @access private + */ + var $realtime_log_file; + + /** + * Real-time log file size + * + * @see Net_SSH2::_append_log() + * @var Integer + * @access private + */ + var $realtime_log_size; + + /** + * Has the signature been validated? + * + * @see Net_SSH2::getServerPublicHostKey() + * @var Boolean + * @access private + */ + var $signature_validated = false; + + /** + * Real-time log file wrap boolean + * + * @see Net_SSH2::_append_log() + * @access private + */ + var $realtime_log_wrap; + + /** + * Flag to suppress stderr from output + * + * @see Net_SSH2::enableQuietMode() + * @access private + */ + var $quiet_mode = false; + + /** + * Time of first network activity + * + * @access private + */ + var $last_packet; + + /** + * Exit status returned from ssh if any + * + * @var Integer + * @access private + */ + var $exit_status; + + /** + * Flag to request a PTY when using exec() + * + * @see Net_SSH2::enablePTY() + * @access private + */ + var $request_pty = false; + + /** + * Flag set while exec() is running when using enablePTY() + * + * @access private + */ + var $in_request_pty_exec = false; + + /** + * Flag set after startSubsystem() is called + * + * @access private + */ + var $in_subsystem; + + /** + * Contents of stdError + * + * @access private + */ + var $stdErrorLog; + + /** + * The Last Interactive Response + * + * @see Net_SSH2::_keyboard_interactive_process() + * @access private + */ + var $last_interactive_response = ''; + + /** + * Keyboard Interactive Request / Responses + * + * @see Net_SSH2::_keyboard_interactive_process() + * @access private + */ + var $keyboard_requests_responses = array(); + + /** + * Banner Message + * + * Quoting from the RFC, "in some jurisdictions, sending a warning message before + * authentication may be relevant for getting legal protection." + * + * @see Net_SSH2::_filter() + * @see Net_SSH2::getBannerMessage() + * @access private + */ + var $banner_message = ''; + + /** + * Did read() timeout or return normally? + * + * @see Net_SSH2::isTimeout + * @access private + */ + var $is_timeout = false; + + /** + * Log Boundary + * + * @see Net_SSH2::_format_log + * @access private + */ + var $log_boundary = ':'; + + /** + * Log Long Width + * + * @see Net_SSH2::_format_log + * @access private + */ + var $log_long_width = 65; + + /** + * Log Short Width + * + * @see Net_SSH2::_format_log + * @access private + */ + var $log_short_width = 16; + /** * Default Constructor. * @@ -616,6 +784,21 @@ class Net_SSH2 { */ function Net_SSH2($host, $port = 22, $timeout = 10) { + // Include Math_BigInteger + // Used to do Diffie-Hellman key exchange and DSA/RSA signature verification. + if (!class_exists('Math_BigInteger')) { + include_once 'Math/BigInteger.php'; + } + + if (!function_exists('crypt_random_string')) { + include_once 'Crypt/Random.php'; + } + + if (!class_exists('Crypt_Hash')) { + include_once 'Crypt/Hash.php'; + } + + $this->last_packet = strtok(microtime(), ' ') + strtok(''); // == microtime(true) in PHP5 $this->message_numbers = array( 1 => 'NET_SSH2_MSG_DISCONNECT', 2 => 'NET_SSH2_MSG_IGNORE', @@ -686,9 +869,31 @@ class Net_SSH2 { 61 => 'NET_SSH2_MSG_USERAUTH_INFO_RESPONSE') ); + $start = strtok(microtime(), ' ') + strtok(''); // http://php.net/microtime#61838 $this->fsock = @fsockopen($host, $port, $errno, $errstr, $timeout); if (!$this->fsock) { - user_error(rtrim("Cannot connect to $host. Error $errno. $errstr"), E_USER_NOTICE); + user_error(rtrim("Cannot connect to $host. Error $errno. $errstr")); + return; + } + $elapsed = strtok(microtime(), ' ') + strtok('') - $start; + + $timeout-= $elapsed; + + if ($timeout <= 0) { + user_error(rtrim("Cannot connect to $host. Timeout error")); + return; + } + + $read = array($this->fsock); + $write = $except = null; + + $sec = floor($timeout); + $usec = 1000000 * ($timeout - $sec); + + // on windows this returns a "Warning: Invalid CRT parameters detected" error + // the !count() is done as a workaround for + if (!@stream_select($read, $write, $except, $sec, $usec) && !count($read)) { + user_error(rtrim("Cannot connect to $host. Banner timeout")); return; } @@ -710,41 +915,24 @@ class Net_SSH2 { } if (feof($this->fsock)) { - user_error('Connection closed by server', E_USER_NOTICE); + user_error('Connection closed by server'); return false; } - $ext = array(); - if (extension_loaded('mcrypt')) { - $ext[] = 'mcrypt'; - } - if (extension_loaded('gmp')) { - $ext[] = 'gmp'; - } else if (extension_loaded('bcmath')) { - $ext[] = 'bcmath'; - } - - if (!empty($ext)) { - $this->identifier.= ' (' . implode(', ', $ext) . ')'; - } + $this->identifier = $this->_generate_identifier(); if (defined('NET_SSH2_LOGGING')) { - $this->message_number_log[] = '<-'; - $this->message_number_log[] = '->'; - - if (NET_SSH2_LOGGING == NET_SSH2_LOG_COMPLEX) { - $this->message_log[] = $temp; - $this->message_log[] = $this->identifier . "\r\n"; - } + $this->_append_log('<-', $extra . $temp); + $this->_append_log('->', $this->identifier . "\r\n"); } $this->server_identifier = trim($temp, "\r\n"); - if (!empty($extra)) { + if (strlen($extra)) { $this->errors[] = utf8_decode($extra); } if ($matches[1] != '1.99' && $matches[1] != '2.0') { - user_error("Cannot connect to SSH $matches[1] servers", E_USER_NOTICE); + user_error("Cannot connect to SSH $matches[1] servers"); return; } @@ -752,12 +940,12 @@ class Net_SSH2 { $response = $this->_get_binary_packet(); if ($response === false) { - user_error('Connection closed by server', E_USER_NOTICE); + user_error('Connection closed by server'); return; } if (ord($response[0]) != NET_SSH2_MSG_KEXINIT) { - user_error('Expected SSH_MSG_KEXINIT', E_USER_NOTICE); + user_error('Expected SSH_MSG_KEXINIT'); return; } @@ -768,6 +956,36 @@ class Net_SSH2 { $this->bitmap = NET_SSH2_MASK_CONSTRUCTOR; } + /** + * Generates the SSH identifier + * + * You should overwrite this method in your own class if you want to use another identifier + * + * @access protected + * @return String + */ + function _generate_identifier() + { + $identifier = 'SSH-2.0-phpseclib_0.3'; + + $ext = array(); + if (extension_loaded('mcrypt')) { + $ext[] = 'mcrypt'; + } + + if (extension_loaded('gmp')) { + $ext[] = 'gmp'; + } elseif (extension_loaded('bcmath')) { + $ext[] = 'bcmath'; + } + + if (!empty($ext)) { + $identifier .= ' (' . implode(', ', $ext) . ')'; + } + + return $identifier; + } + /** * Key Exchange * @@ -786,26 +1004,76 @@ class Net_SSH2 { 'ssh-dss' // REQUIRED sign Raw DSS Key ); - static $encryption_algorithms = array( - // from : - 'arcfour256', - 'arcfour128', + static $encryption_algorithms = false; + if ($encryption_algorithms === false) { + $encryption_algorithms = array( + // from : + 'arcfour256', + 'arcfour128', - 'arcfour', // OPTIONAL the ARCFOUR stream cipher with a 128-bit key + 'arcfour', // OPTIONAL the ARCFOUR stream cipher with a 128-bit key - 'aes128-cbc', // RECOMMENDED AES with a 128-bit key - 'aes192-cbc', // OPTIONAL AES with a 192-bit key - 'aes256-cbc', // OPTIONAL AES in CBC mode, with a 256-bit key + // CTR modes from : + 'aes128-ctr', // RECOMMENDED AES (Rijndael) in SDCTR mode, with 128-bit key + 'aes192-ctr', // RECOMMENDED AES with 192-bit key + 'aes256-ctr', // RECOMMENDED AES with 256-bit key - // from : - 'aes128-ctr', // RECOMMENDED AES (Rijndael) in SDCTR mode, with 128-bit key - 'aes192-ctr', // RECOMMENDED AES with 192-bit key - 'aes256-ctr', // RECOMMENDED AES with 256-bit key - '3des-ctr', // RECOMMENDED Three-key 3DES in SDCTR mode + 'twofish128-ctr', // OPTIONAL Twofish in SDCTR mode, with 128-bit key + 'twofish192-ctr', // OPTIONAL Twofish with 192-bit key + 'twofish256-ctr', // OPTIONAL Twofish with 256-bit key - '3des-cbc', // REQUIRED three-key 3DES in CBC mode - 'none' // OPTIONAL no encryption; NOT RECOMMENDED - ); + 'aes128-cbc', // RECOMMENDED AES with a 128-bit key + 'aes192-cbc', // OPTIONAL AES with a 192-bit key + 'aes256-cbc', // OPTIONAL AES in CBC mode, with a 256-bit key + + 'twofish128-cbc', // OPTIONAL Twofish with a 128-bit key + 'twofish192-cbc', // OPTIONAL Twofish with a 192-bit key + 'twofish256-cbc', + 'twofish-cbc', // OPTIONAL alias for "twofish256-cbc" + // (this is being retained for historical reasons) + + 'blowfish-ctr', // OPTIONAL Blowfish in SDCTR mode + + 'blowfish-cbc', // OPTIONAL Blowfish in CBC mode + + '3des-ctr', // RECOMMENDED Three-key 3DES in SDCTR mode + + '3des-cbc', // REQUIRED three-key 3DES in CBC mode + 'none' // OPTIONAL no encryption; NOT RECOMMENDED + ); + + if (!$this->_is_includable('Crypt/RC4.php')) { + $encryption_algorithms = array_diff( + $encryption_algorithms, + array('arcfour256', 'arcfour128', 'arcfour') + ); + } + if (!$this->_is_includable('Crypt/Rijndael.php')) { + $encryption_algorithms = array_diff( + $encryption_algorithms, + array('aes128-ctr', 'aes192-ctr', 'aes256-ctr', 'aes128-cbc', 'aes192-cbc', 'aes256-cbc') + ); + } + if (!$this->_is_includable('Crypt/Twofish.php')) { + $encryption_algorithms = array_diff( + $encryption_algorithms, + array('twofish128-ctr', 'twofish192-ctr', 'twofish256-ctr', 'twofish128-cbc', 'twofish192-cbc', 'twofish256-cbc', 'twofish-cbc') + ); + } + if (!$this->_is_includable('Crypt/Blowfish.php')) { + $encryption_algorithms = array_diff( + $encryption_algorithms, + array('blowfish-ctr', 'blowfish-cbc') + ); + } + if (!$this->_is_includable('Crypt/TripleDES.php')) { + $encryption_algorithms = array_diff( + $encryption_algorithms, + array('3des-ctr', '3des-cbc') + ); + } + $encryption_algorithms = array_values($encryption_algorithms); + } static $mac_algorithms = array( 'hmac-sha1-96', // RECOMMENDED first 96 bits of HMAC-SHA1 (digest length = 12, key length = 20) @@ -820,6 +1088,15 @@ class Net_SSH2 { //'zlib' // OPTIONAL ZLIB (LZ77) compression ); + // some SSH servers have buggy implementations of some of the above algorithms + switch ($this->server_identifier) { + case 'SSH-2.0-SSHD': + $mac_algorithms = array_values(array_diff( + $mac_algorithms, + array('hmac-sha1-96', 'hmac-md5-96') + )); + } + static $str_kex_algorithms, $str_server_host_key_algorithms, $encryption_algorithms_server_to_client, $mac_algorithms_server_to_client, $compression_algorithms_server_to_client, $encryption_algorithms_client_to_server, $mac_algorithms_client_to_server, $compression_algorithms_client_to_server; @@ -832,10 +1109,7 @@ class Net_SSH2 { $compression_algorithms_server_to_client = $compression_algorithms_client_to_server = implode(',', $compression_algorithms); } - $client_cookie = ''; - for ($i = 0; $i < 16; $i++) { - $client_cookie.= chr(crypt_random(0, 255)); - } + $client_cookie = crypt_random_string(16); $response = $kexinit_payload_server; $this->_string_shift($response, 1); // skip past the message number (it should be SSH_MSG_KEXINIT) @@ -893,7 +1167,7 @@ class Net_SSH2 { // we need to decide upon the symmetric encryption algorithms before we do the diffie-hellman key exchange for ($i = 0; $i < count($encryption_algorithms) && !in_array($encryption_algorithms[$i], $this->encryption_algorithms_server_to_client); $i++); if ($i == count($encryption_algorithms)) { - user_error('No compatible server to client encryption algorithms found', E_USER_NOTICE); + user_error('No compatible server to client encryption algorithms found'); return $this->_disconnect(NET_SSH2_DISCONNECT_KEY_EXCHANGE_FAILED); } @@ -907,14 +1181,23 @@ class Net_SSH2 { break; case 'aes256-cbc': case 'aes256-ctr': + case 'twofish-cbc': + case 'twofish256-cbc': + case 'twofish256-ctr': $decryptKeyLength = 32; // eg. 256 / 8 break; case 'aes192-cbc': case 'aes192-ctr': + case 'twofish192-cbc': + case 'twofish192-ctr': $decryptKeyLength = 24; // eg. 192 / 8 break; case 'aes128-cbc': case 'aes128-ctr': + case 'twofish128-cbc': + case 'twofish128-ctr': + case 'blowfish-cbc': + case 'blowfish-ctr': $decryptKeyLength = 16; // eg. 128 / 8 break; case 'arcfour': @@ -930,7 +1213,7 @@ class Net_SSH2 { for ($i = 0; $i < count($encryption_algorithms) && !in_array($encryption_algorithms[$i], $this->encryption_algorithms_client_to_server); $i++); if ($i == count($encryption_algorithms)) { - user_error('No compatible client to server encryption algorithms found', E_USER_NOTICE); + user_error('No compatible client to server encryption algorithms found'); return $this->_disconnect(NET_SSH2_DISCONNECT_KEY_EXCHANGE_FAILED); } @@ -942,14 +1225,23 @@ class Net_SSH2 { break; case 'aes256-cbc': case 'aes256-ctr': + case 'twofish-cbc': + case 'twofish256-cbc': + case 'twofish256-ctr': $encryptKeyLength = 32; break; case 'aes192-cbc': case 'aes192-ctr': + case 'twofish192-cbc': + case 'twofish192-ctr': $encryptKeyLength = 24; break; case 'aes128-cbc': case 'aes128-ctr': + case 'twofish128-cbc': + case 'twofish128-ctr': + case 'blowfish-cbc': + case 'blowfish-ctr': $encryptKeyLength = 16; break; case 'arcfour': @@ -968,36 +1260,37 @@ class Net_SSH2 { // through diffie-hellman key exchange a symmetric key is obtained for ($i = 0; $i < count($kex_algorithms) && !in_array($kex_algorithms[$i], $this->kex_algorithms); $i++); if ($i == count($kex_algorithms)) { - user_error('No compatible key exchange algorithms found', E_USER_NOTICE); + user_error('No compatible key exchange algorithms found'); return $this->_disconnect(NET_SSH2_DISCONNECT_KEY_EXCHANGE_FAILED); } switch ($kex_algorithms[$i]) { - // see http://tools.ietf.org/html/rfc2409#section-6.2 and + // see http://tools.ietf.org/html/rfc2409#section-6.2 and // http://tools.ietf.org/html/rfc2412, appendex E case 'diffie-hellman-group1-sha1': - $p = pack('H256', 'FFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD129024E088A67CC74' . - '020BBEA63B139B22514A08798E3404DDEF9519B3CD3A431B302B0A6DF25F1437' . - '4FE1356D6D51C245E485B576625E7EC6F44C42E9A637ED6B0BFF5CB6F406B7ED' . - 'EE386BFB5A899FA5AE9F24117C4B1FE649286651ECE65381FFFFFFFFFFFFFFFF'); - $keyLength = $keyLength < 160 ? $keyLength : 160; - $hash = 'sha1'; + $prime = 'FFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD129024E088A67CC74' . + '020BBEA63B139B22514A08798E3404DDEF9519B3CD3A431B302B0A6DF25F1437' . + '4FE1356D6D51C245E485B576625E7EC6F44C42E9A637ED6B0BFF5CB6F406B7ED' . + 'EE386BFB5A899FA5AE9F24117C4B1FE649286651ECE65381FFFFFFFFFFFFFFFF'; break; // see http://tools.ietf.org/html/rfc3526#section-3 case 'diffie-hellman-group14-sha1': - $p = pack('H512', 'FFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD129024E088A67CC74' . - '020BBEA63B139B22514A08798E3404DDEF9519B3CD3A431B302B0A6DF25F1437' . - '4FE1356D6D51C245E485B576625E7EC6F44C42E9A637ED6B0BFF5CB6F406B7ED' . - 'EE386BFB5A899FA5AE9F24117C4B1FE649286651ECE45B3DC2007CB8A163BF05' . - '98DA48361C55D39A69163FA8FD24CF5F83655D23DCA3AD961C62F356208552BB' . - '9ED529077096966D670C354E4ABC9804F1746C08CA18217C32905E462E36CE3B' . - 'E39E772C180E86039B2783A2EC07A28FB5C55DF06F4C52C9DE2BCBF695581718' . - '3995497CEA956AE515D2261898FA051015728E5A8AACAA68FFFFFFFFFFFFFFFF'); - $keyLength = $keyLength < 160 ? $keyLength : 160; - $hash = 'sha1'; + $prime = 'FFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD129024E088A67CC74' . + '020BBEA63B139B22514A08798E3404DDEF9519B3CD3A431B302B0A6DF25F1437' . + '4FE1356D6D51C245E485B576625E7EC6F44C42E9A637ED6B0BFF5CB6F406B7ED' . + 'EE386BFB5A899FA5AE9F24117C4B1FE649286651ECE45B3DC2007CB8A163BF05' . + '98DA48361C55D39A69163FA8FD24CF5F83655D23DCA3AD961C62F356208552BB' . + '9ED529077096966D670C354E4ABC9804F1746C08CA18217C32905E462E36CE3B' . + 'E39E772C180E86039B2783A2EC07A28FB5C55DF06F4C52C9DE2BCBF695581718' . + '3995497CEA956AE515D2261898FA051015728E5A8AACAA68FFFFFFFFFFFFFFFF'; + break; } - $p = new Math_BigInteger($p, 256); + // For both diffie-hellman-group1-sha1 and diffie-hellman-group14-sha1 + // the generator field element is 2 (decimal) and the hash function is sha1. + $g = new Math_BigInteger(2); + $prime = new Math_BigInteger($prime, 16); + $kexHash = new Crypt_Hash('sha1'); //$q = $p->bitwise_rightShift(1); /* To increase the speed of the key exchange, both client and server may @@ -1007,33 +1300,31 @@ class Net_SSH2 { [VAN-OORSCHOT]. -- http://tools.ietf.org/html/rfc4419#section-6.2 */ - $q = new Math_BigInteger(1); - $q = $q->bitwise_leftShift(2 * $keyLength); - $q = $q->subtract(new Math_BigInteger(1)); + $one = new Math_BigInteger(1); + $keyLength = min($keyLength, $kexHash->getLength()); + $max = $one->bitwise_leftShift(16 * $keyLength); // 2 * 8 * $keyLength + $max = $max->subtract($one); - $g = new Math_BigInteger(2); - $x = new Math_BigInteger(); - $x->setRandomGenerator('crypt_random'); - $x = $x->random(new Math_BigInteger(1), $q); - $e = $g->modPow($x, $p); + $x = $one->random($one, $max); + $e = $g->modPow($x, $prime); $eBytes = $e->toBytes(true); $data = pack('CNa*', NET_SSH2_MSG_KEXDH_INIT, strlen($eBytes), $eBytes); if (!$this->_send_binary_packet($data)) { - user_error('Connection closed by server', E_USER_NOTICE); + user_error('Connection closed by server'); return false; } $response = $this->_get_binary_packet(); if ($response === false) { - user_error('Connection closed by server', E_USER_NOTICE); + user_error('Connection closed by server'); return false; } extract(unpack('Ctype', $this->_string_shift($response, 1))); if ($type != NET_SSH2_MSG_KEXDH_REPLY) { - user_error('Expected SSH_MSG_KEXDH_REPLY', E_USER_NOTICE); + user_error('Expected SSH_MSG_KEXDH_REPLY'); return false; } @@ -1053,7 +1344,7 @@ class Net_SSH2 { $temp = unpack('Nlength', $this->_string_shift($this->signature, 4)); $this->signature_format = $this->_string_shift($this->signature, $temp['length']); - $key = $f->modPow($x, $p); + $key = $f->modPow($x, $prime); $keyBytes = $key->toBytes(true); $this->exchange_hash = pack('Na*Na*Na*Na*Na*Na*Na*Na*', @@ -1063,7 +1354,7 @@ class Net_SSH2 { $eBytes, strlen($fBytes), $fBytes, strlen($keyBytes), $keyBytes ); - $this->exchange_hash = pack('H*', $hash($this->exchange_hash)); + $this->exchange_hash = $kexHash->hash($this->exchange_hash); if ($this->session_id === false) { $this->session_id = $this->exchange_hash; @@ -1071,12 +1362,12 @@ class Net_SSH2 { for ($i = 0; $i < count($server_host_key_algorithms) && !in_array($server_host_key_algorithms[$i], $this->server_host_key_algorithms); $i++); if ($i == count($server_host_key_algorithms)) { - user_error('No compatible server host key algorithms found', E_USER_NOTICE); + user_error('No compatible server host key algorithms found'); return $this->_disconnect(NET_SSH2_DISCONNECT_KEY_EXCHANGE_FAILED); } if ($public_key_format != $server_host_key_algorithms[$i] || $this->signature_format != $server_host_key_algorithms[$i]) { - user_error('Sever Host Key Algorithm Mismatch', E_USER_NOTICE); + user_error('Server Host Key Algorithm Mismatch'); return $this->_disconnect(NET_SSH2_DISCONNECT_KEY_EXCHANGE_FAILED); } @@ -1091,41 +1382,89 @@ class Net_SSH2 { $response = $this->_get_binary_packet(); if ($response === false) { - user_error('Connection closed by server', E_USER_NOTICE); + user_error('Connection closed by server'); return false; } extract(unpack('Ctype', $this->_string_shift($response, 1))); if ($type != NET_SSH2_MSG_NEWKEYS) { - user_error('Expected SSH_MSG_NEWKEYS', E_USER_NOTICE); + user_error('Expected SSH_MSG_NEWKEYS'); return false; } switch ($encrypt) { case '3des-cbc': + if (!class_exists('Crypt_TripleDES')) { + include_once 'Crypt/TripleDES.php'; + } $this->encrypt = new Crypt_TripleDES(); // $this->encrypt_block_size = 64 / 8 == the default break; case '3des-ctr': + if (!class_exists('Crypt_TripleDES')) { + include_once 'Crypt/TripleDES.php'; + } $this->encrypt = new Crypt_TripleDES(CRYPT_DES_MODE_CTR); // $this->encrypt_block_size = 64 / 8 == the default break; case 'aes256-cbc': case 'aes192-cbc': case 'aes128-cbc': - $this->encrypt = new Crypt_AES(); + if (!class_exists('Crypt_Rijndael')) { + include_once 'Crypt/Rijndael.php'; + } + $this->encrypt = new Crypt_Rijndael(); $this->encrypt_block_size = 16; // eg. 128 / 8 break; case 'aes256-ctr': case 'aes192-ctr': case 'aes128-ctr': - $this->encrypt = new Crypt_AES(CRYPT_AES_MODE_CTR); + if (!class_exists('Crypt_Rijndael')) { + include_once 'Crypt/Rijndael.php'; + } + $this->encrypt = new Crypt_Rijndael(CRYPT_RIJNDAEL_MODE_CTR); $this->encrypt_block_size = 16; // eg. 128 / 8 break; + case 'blowfish-cbc': + if (!class_exists('Crypt_Blowfish')) { + include_once 'Crypt/Blowfish.php'; + } + $this->encrypt = new Crypt_Blowfish(); + $this->encrypt_block_size = 8; + break; + case 'blowfish-ctr': + if (!class_exists('Crypt_Blowfish')) { + include_once 'Crypt/Blowfish.php'; + } + $this->encrypt = new Crypt_Blowfish(CRYPT_BLOWFISH_MODE_CTR); + $this->encrypt_block_size = 8; + break; + case 'twofish128-cbc': + case 'twofish192-cbc': + case 'twofish256-cbc': + case 'twofish-cbc': + if (!class_exists('Crypt_Twofish')) { + include_once 'Crypt/Twofish.php'; + } + $this->encrypt = new Crypt_Twofish(); + $this->encrypt_block_size = 16; + break; + case 'twofish128-ctr': + case 'twofish192-ctr': + case 'twofish256-ctr': + if (!class_exists('Crypt_Twofish')) { + include_once 'Crypt/Twofish.php'; + } + $this->encrypt = new Crypt_Twofish(CRYPT_TWOFISH_MODE_CTR); + $this->encrypt_block_size = 16; + break; case 'arcfour': case 'arcfour128': case 'arcfour256': + if (!class_exists('Crypt_RC4')) { + include_once 'Crypt/RC4.php'; + } $this->encrypt = new Crypt_RC4(); break; case 'none'; @@ -1134,26 +1473,74 @@ class Net_SSH2 { switch ($decrypt) { case '3des-cbc': + if (!class_exists('Crypt_TripleDES')) { + include_once 'Crypt/TripleDES.php'; + } $this->decrypt = new Crypt_TripleDES(); break; case '3des-ctr': + if (!class_exists('Crypt_TripleDES')) { + include_once 'Crypt/TripleDES.php'; + } $this->decrypt = new Crypt_TripleDES(CRYPT_DES_MODE_CTR); break; case 'aes256-cbc': case 'aes192-cbc': case 'aes128-cbc': - $this->decrypt = new Crypt_AES(); + if (!class_exists('Crypt_Rijndael')) { + include_once 'Crypt/Rijndael.php'; + } + $this->decrypt = new Crypt_Rijndael(); $this->decrypt_block_size = 16; break; case 'aes256-ctr': case 'aes192-ctr': case 'aes128-ctr': - $this->decrypt = new Crypt_AES(CRYPT_AES_MODE_CTR); + if (!class_exists('Crypt_Rijndael')) { + include_once 'Crypt/Rijndael.php'; + } + $this->decrypt = new Crypt_Rijndael(CRYPT_RIJNDAEL_MODE_CTR); + $this->decrypt_block_size = 16; + break; + case 'blowfish-cbc': + if (!class_exists('Crypt_Blowfish')) { + include_once 'Crypt/Blowfish.php'; + } + $this->decrypt = new Crypt_Blowfish(); + $this->decrypt_block_size = 8; + break; + case 'blowfish-ctr': + if (!class_exists('Crypt_Blowfish')) { + include_once 'Crypt/Blowfish.php'; + } + $this->decrypt = new Crypt_Blowfish(CRYPT_BLOWFISH_MODE_CTR); + $this->decrypt_block_size = 8; + break; + case 'twofish128-cbc': + case 'twofish192-cbc': + case 'twofish256-cbc': + case 'twofish-cbc': + if (!class_exists('Crypt_Twofish')) { + include_once 'Crypt/Twofish.php'; + } + $this->decrypt = new Crypt_Twofish(); + $this->decrypt_block_size = 16; + break; + case 'twofish128-ctr': + case 'twofish192-ctr': + case 'twofish256-ctr': + if (!class_exists('Crypt_Twofish')) { + include_once 'Crypt/Twofish.php'; + } + $this->decrypt = new Crypt_Twofish(CRYPT_TWOFISH_MODE_CTR); $this->decrypt_block_size = 16; break; case 'arcfour': case 'arcfour128': case 'arcfour256': + if (!class_exists('Crypt_RC4')) { + include_once 'Crypt/RC4.php'; + } $this->decrypt = new Crypt_RC4(); break; case 'none'; @@ -1166,15 +1553,15 @@ class Net_SSH2 { $this->encrypt->enableContinuousBuffer(); $this->encrypt->disablePadding(); - $iv = pack('H*', $hash($keyBytes . $this->exchange_hash . 'A' . $this->session_id)); + $iv = $kexHash->hash($keyBytes . $this->exchange_hash . 'A' . $this->session_id); while ($this->encrypt_block_size > strlen($iv)) { - $iv.= pack('H*', $hash($keyBytes . $this->exchange_hash . $iv)); + $iv.= $kexHash->hash($keyBytes . $this->exchange_hash . $iv); } $this->encrypt->setIV(substr($iv, 0, $this->encrypt_block_size)); - $key = pack('H*', $hash($keyBytes . $this->exchange_hash . 'C' . $this->session_id)); + $key = $kexHash->hash($keyBytes . $this->exchange_hash . 'C' . $this->session_id); while ($encryptKeyLength > strlen($key)) { - $key.= pack('H*', $hash($keyBytes . $this->exchange_hash . $key)); + $key.= $kexHash->hash($keyBytes . $this->exchange_hash . $key); } $this->encrypt->setKey(substr($key, 0, $encryptKeyLength)); } @@ -1183,15 +1570,15 @@ class Net_SSH2 { $this->decrypt->enableContinuousBuffer(); $this->decrypt->disablePadding(); - $iv = pack('H*', $hash($keyBytes . $this->exchange_hash . 'B' . $this->session_id)); + $iv = $kexHash->hash($keyBytes . $this->exchange_hash . 'B' . $this->session_id); while ($this->decrypt_block_size > strlen($iv)) { - $iv.= pack('H*', $hash($keyBytes . $this->exchange_hash . $iv)); + $iv.= $kexHash->hash($keyBytes . $this->exchange_hash . $iv); } $this->decrypt->setIV(substr($iv, 0, $this->decrypt_block_size)); - $key = pack('H*', $hash($keyBytes . $this->exchange_hash . 'D' . $this->session_id)); + $key = $kexHash->hash($keyBytes . $this->exchange_hash . 'D' . $this->session_id); while ($decryptKeyLength > strlen($key)) { - $key.= pack('H*', $hash($keyBytes . $this->exchange_hash . $key)); + $key.= $kexHash->hash($keyBytes . $this->exchange_hash . $key); } $this->decrypt->setKey(substr($key, 0, $decryptKeyLength)); } @@ -1212,7 +1599,7 @@ class Net_SSH2 { for ($i = 0; $i < count($mac_algorithms) && !in_array($mac_algorithms[$i], $this->mac_algorithms_client_to_server); $i++); if ($i == count($mac_algorithms)) { - user_error('No compatible client to server message authentication algorithms found', E_USER_NOTICE); + user_error('No compatible client to server message authentication algorithms found'); return $this->_disconnect(NET_SSH2_DISCONNECT_KEY_EXCHANGE_FAILED); } @@ -1237,7 +1624,7 @@ class Net_SSH2 { for ($i = 0; $i < count($mac_algorithms) && !in_array($mac_algorithms[$i], $this->mac_algorithms_server_to_client); $i++); if ($i == count($mac_algorithms)) { - user_error('No compatible server to client message authentication algorithms found', E_USER_NOTICE); + user_error('No compatible server to client message authentication algorithms found'); return $this->_disconnect(NET_SSH2_DISCONNECT_KEY_EXCHANGE_FAILED); } @@ -1265,28 +1652,28 @@ class Net_SSH2 { $this->hmac_size = 12; } - $key = pack('H*', $hash($keyBytes . $this->exchange_hash . 'E' . $this->session_id)); + $key = $kexHash->hash($keyBytes . $this->exchange_hash . 'E' . $this->session_id); while ($createKeyLength > strlen($key)) { - $key.= pack('H*', $hash($keyBytes . $this->exchange_hash . $key)); + $key.= $kexHash->hash($keyBytes . $this->exchange_hash . $key); } $this->hmac_create->setKey(substr($key, 0, $createKeyLength)); - $key = pack('H*', $hash($keyBytes . $this->exchange_hash . 'F' . $this->session_id)); + $key = $kexHash->hash($keyBytes . $this->exchange_hash . 'F' . $this->session_id); while ($checkKeyLength > strlen($key)) { - $key.= pack('H*', $hash($keyBytes . $this->exchange_hash . $key)); + $key.= $kexHash->hash($keyBytes . $this->exchange_hash . $key); } $this->hmac_check->setKey(substr($key, 0, $checkKeyLength)); for ($i = 0; $i < count($compression_algorithms) && !in_array($compression_algorithms[$i], $this->compression_algorithms_server_to_client); $i++); if ($i == count($compression_algorithms)) { - user_error('No compatible server to client compression algorithms found', E_USER_NOTICE); + user_error('No compatible server to client compression algorithms found'); return $this->_disconnect(NET_SSH2_DISCONNECT_KEY_EXCHANGE_FAILED); } $this->decompress = $compression_algorithms[$i] == 'zlib'; for ($i = 0; $i < count($compression_algorithms) && !in_array($compression_algorithms[$i], $this->compression_algorithms_client_to_server); $i++); if ($i == count($compression_algorithms)) { - user_error('No compatible client to server compression algorithms found', E_USER_NOTICE); + user_error('No compatible client to server compression algorithms found'); return $this->_disconnect(NET_SSH2_DISCONNECT_KEY_EXCHANGE_FAILED); } $this->compress = $compression_algorithms[$i] == 'zlib'; @@ -1297,69 +1684,158 @@ class Net_SSH2 { /** * Login * - * The $password parameter can be a plaintext password or a Crypt_RSA object. + * The $password parameter can be a plaintext password, a Crypt_RSA object or an array + * + * @param String $username + * @param Mixed $password + * @param Mixed $... + * @return Boolean + * @see _login + * @access public + */ + function login($username) + { + $args = func_get_args(); + return call_user_func_array(array(&$this, '_login'), $args); + } + + /** + * Login Helper + * + * @param String $username + * @param Mixed $password + * @param Mixed $... + * @return Boolean + * @see _login_helper + * @access private + */ + function _login($username) + { + $args = array_slice(func_get_args(), 1); + if (empty($args)) { + return $this->_login_helper($username); + } + + foreach ($args as $arg) { + if ($this->_login_helper($username, $arg)) { + return true; + } + } + return false; + } + + /** + * Login Helper * * @param String $username * @param optional String $password * @return Boolean - * @access public + * @access private * @internal It might be worthwhile, at some point, to protect against {@link http://tools.ietf.org/html/rfc4251#section-9.3.9 traffic analysis} * by sending dummy SSH_MSG_IGNORE messages. */ - function login($username, $password = '') + function _login_helper($username, $password = null) { if (!($this->bitmap & NET_SSH2_MASK_CONSTRUCTOR)) { return false; } - $packet = pack('CNa*', - NET_SSH2_MSG_SERVICE_REQUEST, strlen('ssh-userauth'), 'ssh-userauth' - ); + if (!($this->bitmap & NET_SSH2_MASK_LOGIN_REQ)) { + $packet = pack('CNa*', + NET_SSH2_MSG_SERVICE_REQUEST, strlen('ssh-userauth'), 'ssh-userauth' + ); - if (!$this->_send_binary_packet($packet)) { - return false; + if (!$this->_send_binary_packet($packet)) { + return false; + } + + $response = $this->_get_binary_packet(); + if ($response === false) { + user_error('Connection closed by server'); + return false; + } + + extract(unpack('Ctype', $this->_string_shift($response, 1))); + + if ($type != NET_SSH2_MSG_SERVICE_ACCEPT) { + user_error('Expected SSH_MSG_SERVICE_ACCEPT'); + return false; + } + $this->bitmap |= NET_SSH2_MASK_LOGIN_REQ; } - $response = $this->_get_binary_packet(); - if ($response === false) { - user_error('Connection closed by server', E_USER_NOTICE); - return false; - } - - extract(unpack('Ctype', $this->_string_shift($response, 1))); - - if ($type != NET_SSH2_MSG_SERVICE_ACCEPT) { - user_error('Expected SSH_MSG_SERVICE_ACCEPT', E_USER_NOTICE); - return false; + if (strlen($this->last_interactive_response)) { + return !is_string($password) && !is_array($password) ? false : $this->_keyboard_interactive_process($password); } // although PHP5's get_class() preserves the case, PHP4's does not - if (is_object($password) && strtolower(get_class($password)) == 'crypt_rsa') { - return $this->_privatekey_login($username, $password); + if (is_object($password)) { + switch (strtolower(get_class($password))) { + case 'crypt_rsa': + return $this->_privatekey_login($username, $password); + case 'system_ssh_agent': + return $this->_ssh_agent_login($username, $password); + } } - $utf8_password = $password;//utf8_encode($password); - $packet = pack('CNa*Na*Na*CNa*', - NET_SSH2_MSG_USERAUTH_REQUEST, strlen($username), $username, strlen('ssh-connection'), 'ssh-connection', - strlen('password'), 'password', 0, strlen($utf8_password), $utf8_password - ); - - if (!$this->_send_binary_packet($packet)) { + if (is_array($password)) { + if ($this->_keyboard_interactive_login($username, $password)) { + $this->bitmap |= NET_SSH2_MASK_LOGIN; + return true; + } return false; } - // remove the username and password from the last logged packet - if (defined('NET_SSH2_LOGGING') && NET_SSH2_LOGGING == NET_SSH2_LOG_COMPLEX) { - $packet = pack('CNa*Na*Na*CNa*', + if (!isset($password)) { + $packet = pack('CNa*Na*Na*', + NET_SSH2_MSG_USERAUTH_REQUEST, strlen($username), $username, strlen('ssh-connection'), 'ssh-connection', + strlen('none'), 'none' + ); + + if (!$this->_send_binary_packet($packet)) { + return false; + } + + $response = $this->_get_binary_packet(); + if ($response === false) { + user_error('Connection closed by server'); + return false; + } + + extract(unpack('Ctype', $this->_string_shift($response, 1))); + + switch ($type) { + case NET_SSH2_MSG_USERAUTH_SUCCESS: + $this->bitmap |= NET_SSH2_MASK_LOGIN; + return true; + //case NET_SSH2_MSG_USERAUTH_FAILURE: + default: + return false; + } + } + + $packet = pack('CNa*Na*Na*CNa*', + NET_SSH2_MSG_USERAUTH_REQUEST, strlen($username), $username, strlen('ssh-connection'), 'ssh-connection', + strlen('password'), 'password', 0, strlen($password), $password + ); + + // remove the username and password from the logged packet + if (!defined('NET_SSH2_LOGGING')) { + $logged = null; + } else { + $logged = pack('CNa*Na*Na*CNa*', NET_SSH2_MSG_USERAUTH_REQUEST, strlen('username'), 'username', strlen('ssh-connection'), 'ssh-connection', strlen('password'), 'password', 0, strlen('password'), 'password' ); - $this->message_log[count($this->message_log) - 1] = $packet; + } + + if (!$this->_send_binary_packet($packet, $logged)) { + return false; } $response = $this->_get_binary_packet(); if ($response === false) { - user_error('Connection closed by server', E_USER_NOTICE); + user_error('Connection closed by server'); return false; } @@ -1378,7 +1854,10 @@ class Net_SSH2 { // multi-factor authentication extract(unpack('Nlength', $this->_string_shift($response, 4))); $auth_methods = explode(',', $this->_string_shift($response, $length)); - if (in_array('keyboard-interactive', $auth_methods)) { + extract(unpack('Cpartial_success', $this->_string_shift($response, 1))); + $partial_success = $partial_success != 0; + + if (!$partial_success && in_array('keyboard-interactive', $auth_methods)) { if ($this->_keyboard_interactive_login($username, $password)) { $this->bitmap |= NET_SSH2_MASK_LOGIN; return true; @@ -1406,7 +1885,7 @@ class Net_SSH2 { */ function _keyboard_interactive_login($username, $password) { - $packet = pack('CNa*Na*Na*Na*Na*', + $packet = pack('CNa*Na*Na*Na*Na*', NET_SSH2_MSG_USERAUTH_REQUEST, strlen($username), $username, strlen('ssh-connection'), 'ssh-connection', strlen('keyboard-interactive'), 'keyboard-interactive', 0, '', 0, '' ); @@ -1429,25 +1908,20 @@ class Net_SSH2 { { $responses = func_get_args(); - $response = $this->_get_binary_packet(); - if ($response === false) { - user_error('Connection closed by server', E_USER_NOTICE); - return false; + if (strlen($this->last_interactive_response)) { + $response = $this->last_interactive_response; + } else { + $orig = $response = $this->_get_binary_packet(); + if ($response === false) { + user_error('Connection closed by server'); + return false; + } } extract(unpack('Ctype', $this->_string_shift($response, 1))); switch ($type) { case NET_SSH2_MSG_USERAUTH_INFO_REQUEST: - // see http://tools.ietf.org/html/rfc4256#section-3.2 - if (defined('NET_SSH2_LOGGING')) { - $this->message_number_log[count($this->message_number_log) - 1] = str_replace( - 'UNKNOWN', - 'NET_SSH2_MSG_USERAUTH_INFO_REQUEST', - $this->message_number_log[count($this->message_number_log) - 1] - ); - } - extract(unpack('Nlength', $this->_string_shift($response, 4))); $this->_string_shift($response, $length); // name; may be empty extract(unpack('Nlength', $this->_string_shift($response, 4))); @@ -1455,14 +1929,48 @@ class Net_SSH2 { extract(unpack('Nlength', $this->_string_shift($response, 4))); $this->_string_shift($response, $length); // language tag; may be empty extract(unpack('Nnum_prompts', $this->_string_shift($response, 4))); - /* - for ($i = 0; $i < $num_prompts; $i++) { - extract(unpack('Nlength', $this->_string_shift($response, 4))); - // prompt - ie. "Password: "; must not be empty - $this->_string_shift($response, $length); - $echo = $this->_string_shift($response) != chr(0); + + for ($i = 0; $i < count($responses); $i++) { + if (is_array($responses[$i])) { + foreach ($responses[$i] as $key => $value) { + $this->keyboard_requests_responses[$key] = $value; + } + unset($responses[$i]); + } + } + $responses = array_values($responses); + + if (isset($this->keyboard_requests_responses)) { + for ($i = 0; $i < $num_prompts; $i++) { + extract(unpack('Nlength', $this->_string_shift($response, 4))); + // prompt - ie. "Password: "; must not be empty + $prompt = $this->_string_shift($response, $length); + //$echo = $this->_string_shift($response) != chr(0); + foreach ($this->keyboard_requests_responses as $key => $value) { + if (substr($prompt, 0, strlen($key)) == $key) { + $responses[] = $value; + break; + } + } + } + } + + // see http://tools.ietf.org/html/rfc4256#section-3.2 + if (strlen($this->last_interactive_response)) { + $this->last_interactive_response = ''; + } else if (defined('NET_SSH2_LOGGING')) { + $this->message_number_log[count($this->message_number_log) - 1] = str_replace( + 'UNKNOWN', + 'NET_SSH2_MSG_USERAUTH_INFO_REQUEST', + $this->message_number_log[count($this->message_number_log) - 1] + ); + } + + if (!count($responses) && $num_prompts) { + $this->last_interactive_response = $orig; + $this->bitmap |= NET_SSH_MASK_LOGIN_INTERACTIVE; + return false; } - */ /* After obtaining the requested information from the user, the client @@ -1475,17 +1983,16 @@ class Net_SSH2 { $logged.= pack('Na*', strlen('dummy-answer'), 'dummy-answer'); } - if (!$this->_send_binary_packet($packet)) { + if (!$this->_send_binary_packet($packet, $logged)) { return false; } - if (defined('NET_SSH2_LOGGING')) { + if (defined('NET_SSH2_LOGGING') && NET_SSH2_LOGGING == NET_SSH2_LOG_COMPLEX) { $this->message_number_log[count($this->message_number_log) - 1] = str_replace( 'UNKNOWN', 'NET_SSH2_MSG_USERAUTH_INFO_RESPONSE', $this->message_number_log[count($this->message_number_log) - 1] ); - $this->message_log[count($this->message_log) - 1] = $logged; } /* @@ -1505,6 +2012,26 @@ class Net_SSH2 { return false; } + /** + * Login with an ssh-agent provided key + * + * @param String $username + * @param System_SSH_Agent $agent + * @return Boolean + * @access private + */ + function _ssh_agent_login($username, $agent) + { + $keys = $agent->requestIdentities(); + foreach ($keys as $key) { + if ($this->_privatekey_login($username, $key)) { + return true; + } + } + + return false; + } + /** * Login with an RSA private key * @@ -1544,7 +2071,7 @@ class Net_SSH2 { $response = $this->_get_binary_packet(); if ($response === false) { - user_error('Connection closed by server', E_USER_NOTICE); + user_error('Connection closed by server'); return false; } @@ -1554,11 +2081,11 @@ class Net_SSH2 { case NET_SSH2_MSG_USERAUTH_FAILURE: extract(unpack('Nlength', $this->_string_shift($response, 4))); $this->errors[] = 'SSH_MSG_USERAUTH_FAILURE: ' . $this->_string_shift($response, $length); - return $this->_disconnect(NET_SSH2_DISCONNECT_AUTH_CANCELLED_BY_USER); + return false; case NET_SSH2_MSG_USERAUTH_PK_OK: // we'll just take it on faith that the public key blob and the public key algorithm name are as // they should be - if (defined('NET_SSH2_LOGGING')) { + if (defined('NET_SSH2_LOGGING') && NET_SSH2_LOGGING == NET_SSH2_LOG_COMPLEX) { $this->message_number_log[count($this->message_number_log) - 1] = str_replace( 'UNKNOWN', 'NET_SSH2_MSG_USERAUTH_PK_OK', @@ -1579,7 +2106,7 @@ class Net_SSH2 { $response = $this->_get_binary_packet(); if ($response === false) { - user_error('Connection closed by server', E_USER_NOTICE); + user_error('Connection closed by server'); return false; } @@ -1587,7 +2114,7 @@ class Net_SSH2 { switch ($type) { case NET_SSH2_MSG_USERAUTH_FAILURE: - // either the login is bad or the server employees multi-factor authentication + // either the login is bad or the server employs multi-factor authentication return false; case NET_SSH2_MSG_USERAUTH_SUCCESS: $this->bitmap |= NET_SSH2_MASK_LOGIN; @@ -1597,6 +2124,30 @@ class Net_SSH2 { return false; } + /** + * Set Timeout + * + * $ssh->exec('ping 127.0.0.1'); on a Linux host will never return and will run indefinitely. setTimeout() makes it so it'll timeout. + * Setting $timeout to false or 0 will mean there is no timeout. + * + * @param Mixed $timeout + * @access public + */ + function setTimeout($timeout) + { + $this->timeout = $this->curTimeout = $timeout; + } + + /** + * Get the output from stdError + * + * @access public + */ + function getStdError() + { + return $this->stdErrorLog; + } + /** * Execute Command * @@ -1608,23 +2159,27 @@ class Net_SSH2 { * @return String * @access public */ - function exec($command, $block = true) + function exec($command, $callback = null) { + $this->curTimeout = $this->timeout; + $this->is_timeout = false; + $this->stdErrorLog = ''; + if (!($this->bitmap & NET_SSH2_MASK_LOGIN)) { return false; } // RFC4254 defines the (client) window size as "bytes the other party can send before it must wait for the window to - // be adjusted". 0x7FFFFFFF is, at 4GB, the max size. technically, it should probably be decremented, but, - // honestly, if you're transfering more than 4GB, you probably shouldn't be using phpseclib, anyway. + // be adjusted". 0x7FFFFFFF is, at 2GB, the max size. technically, it should probably be decremented, but, + // honestly, if you're transfering more than 2GB, you probably shouldn't be using phpseclib, anyway. // see http://tools.ietf.org/html/rfc4254#section-5.2 for more info - $this->window_size_client_to_server[NET_SSH2_CHANNEL_EXEC] = 0x7FFFFFFF; + $this->window_size_server_to_client[NET_SSH2_CHANNEL_EXEC] = 0x7FFFFFFF; // 0x8000 is the maximum max packet size, per http://tools.ietf.org/html/rfc4253#section-6.1, although since PuTTy // uses 0x4000, that's what will be used here, as well. $packet_size = 0x4000; $packet = pack('CNa*N3', - NET_SSH2_MSG_CHANNEL_OPEN, strlen('session'), 'session', NET_SSH2_CHANNEL_EXEC, $this->window_size_client_to_server[NET_SSH2_CHANNEL_EXEC], $packet_size); + NET_SSH2_MSG_CHANNEL_OPEN, strlen('session'), 'session', NET_SSH2_CHANNEL_EXEC, $this->window_size_server_to_client[NET_SSH2_CHANNEL_EXEC], $packet_size); if (!$this->_send_binary_packet($packet)) { return false; @@ -1637,6 +2192,34 @@ class Net_SSH2 { return false; } + if ($this->request_pty === true) { + $terminal_modes = pack('C', NET_SSH2_TTY_OP_END); + $packet = pack('CNNa*CNa*N5a*', + NET_SSH2_MSG_CHANNEL_REQUEST, $this->server_channels[NET_SSH2_CHANNEL_EXEC], strlen('pty-req'), 'pty-req', 1, strlen('vt100'), 'vt100', + 80, 24, 0, 0, strlen($terminal_modes), $terminal_modes); + + if (!$this->_send_binary_packet($packet)) { + return false; + } + $response = $this->_get_binary_packet(); + if ($response === false) { + user_error('Connection closed by server'); + return false; + } + + list(, $type) = unpack('C', $this->_string_shift($response, 1)); + + switch ($type) { + case NET_SSH2_MSG_CHANNEL_SUCCESS: + break; + case NET_SSH2_MSG_CHANNEL_FAILURE: + default: + user_error('Unable to request pseudo-terminal'); + return $this->_disconnect(NET_SSH2_DISCONNECT_BY_APPLICATION); + } + $this->in_request_pty_exec = true; + } + // sending a pty-req SSH_MSG_CHANNEL_REQUEST message is unnecessary and, in fact, in most cases, slows things // down. the one place where it might be desirable is if you're doing something like Net_SSH2::exec('ping localhost &'). // with a pty-req SSH_MSG_CHANNEL_REQUEST, exec() will return immediately and the ping process will then @@ -1644,7 +2227,7 @@ class Net_SSH2 { // neither will your script. // although, in theory, the size of SSH_MSG_CHANNEL_REQUEST could exceed the maximum packet size established by - // SSH_MSG_CHANNEL_OPEN_CONFIRMATION, RFC4254#section-5.1 states that the "maximum packet size" refers to the + // SSH_MSG_CHANNEL_OPEN_CONFIRMATION, RFC4254#section-5.1 states that the "maximum packet size" refers to the // "maximum size of an individual data packet". ie. SSH_MSG_CHANNEL_DATA. RFC4254#section-5.2 corroborates. $packet = pack('CNNa*CNa*', NET_SSH2_MSG_CHANNEL_REQUEST, $this->server_channels[NET_SSH2_CHANNEL_EXEC], strlen('exec'), 'exec', 1, strlen($command), $command); @@ -1661,7 +2244,7 @@ class Net_SSH2 { $this->channel_status[NET_SSH2_CHANNEL_EXEC] = NET_SSH2_MSG_CHANNEL_DATA; - if (!$block) { + if ($callback === false || $this->in_request_pty_exec) { return true; } @@ -1670,11 +2253,15 @@ class Net_SSH2 { $temp = $this->_get_channel_packet(NET_SSH2_CHANNEL_EXEC); switch (true) { case $temp === true: - return $output; + return is_callable($callback) ? true : $output; case $temp === false: return false; default: - $output.= $temp; + if (is_callable($callback)) { + $callback($temp); + } else { + $output.= $temp; + } } } } @@ -1689,11 +2276,15 @@ class Net_SSH2 { */ function _initShell() { - $this->window_size_client_to_server[NET_SSH2_CHANNEL_SHELL] = 0x7FFFFFFF; + if ($this->in_request_pty_exec === true) { + return true; + } + + $this->window_size_server_to_client[NET_SSH2_CHANNEL_SHELL] = 0x7FFFFFFF; $packet_size = 0x4000; $packet = pack('CNa*N3', - NET_SSH2_MSG_CHANNEL_OPEN, strlen('session'), 'session', NET_SSH2_CHANNEL_SHELL, $this->window_size_client_to_server[NET_SSH2_CHANNEL_SHELL], $packet_size); + NET_SSH2_MSG_CHANNEL_OPEN, strlen('session'), 'session', NET_SSH2_CHANNEL_SHELL, $this->window_size_server_to_client[NET_SSH2_CHANNEL_SHELL], $packet_size); if (!$this->_send_binary_packet($packet)) { return false; @@ -1715,10 +2306,9 @@ class Net_SSH2 { return false; } - $response = $this->_get_binary_packet(); if ($response === false) { - user_error('Connection closed by server', E_USER_NOTICE); + user_error('Connection closed by server'); return false; } @@ -1726,10 +2316,11 @@ class Net_SSH2 { switch ($type) { case NET_SSH2_MSG_CHANNEL_SUCCESS: - break; + // if a pty can't be opened maybe commands can still be executed case NET_SSH2_MSG_CHANNEL_FAILURE: + break; default: - user_error('Unable to request pseudo-terminal', E_USER_NOTICE); + user_error('Unable to request pseudo-terminal'); return $this->_disconnect(NET_SSH2_DISCONNECT_BY_APPLICATION); } @@ -1753,41 +2344,70 @@ class Net_SSH2 { return true; } + /** + * Return the channel to be used with read() / write() + * + * @see Net_SSH2::read() + * @see Net_SSH2::write() + * @return Integer + * @access public + */ + function _get_interactive_channel() + { + switch (true) { + case $this->in_subsystem: + return NET_SSH2_CHANNEL_SUBSYSTEM; + case $this->in_request_pty_exec: + return NET_SSH2_CHANNEL_EXEC; + default: + return NET_SSH2_CHANNEL_SHELL; + } + } + /** * Returns the output of an interactive shell * * Returns when there's a match for $expect, which can take the form of a string literal or, * if $mode == NET_SSH2_READ_REGEX, a regular expression. * - * @see Net_SSH2::read() + * @see Net_SSH2::write() * @param String $expect * @param Integer $mode * @return String * @access public */ - function read($expect, $mode = NET_SSH2_READ_SIMPLE) + function read($expect = '', $mode = NET_SSH2_READ_SIMPLE) { + $this->curTimeout = $this->timeout; + $this->is_timeout = false; + if (!($this->bitmap & NET_SSH2_MASK_LOGIN)) { - user_error('Operation disallowed prior to login()', E_USER_NOTICE); + user_error('Operation disallowed prior to login()'); return false; } if (!($this->bitmap & NET_SSH2_MASK_SHELL) && !$this->_initShell()) { - user_error('Unable to initiate an interactive shell session', E_USER_NOTICE); + user_error('Unable to initiate an interactive shell session'); return false; } + $channel = $this->_get_interactive_channel(); + $match = $expect; while (true) { if ($mode == NET_SSH2_READ_REGEX) { preg_match($expect, $this->interactiveBuffer, $matches); - $match = $matches[0]; + $match = isset($matches[0]) ? $matches[0] : ''; } - $pos = strpos($this->interactiveBuffer, $match); + $pos = strlen($match) ? strpos($this->interactiveBuffer, $match) : false; if ($pos !== false) { return $this->_string_shift($this->interactiveBuffer, $pos + strlen($match)); } - $response = $this->_get_channel_packet(NET_SSH2_CHANNEL_SHELL); + $response = $this->_get_channel_packet($channel); + if (is_bool($response)) { + $this->in_request_pty_exec = false; + return $response ? $this->_string_shift($this->interactiveBuffer, strlen($this->interactiveBuffer)) : false; + } $this->interactiveBuffer.= $response; } @@ -1796,7 +2416,7 @@ class Net_SSH2 { /** * Inputs a command into an interactive shell. * - * @see Net_SSH1::interactiveWrite() + * @see Net_SSH2::read() * @param String $cmd * @return Boolean * @access public @@ -1804,16 +2424,108 @@ class Net_SSH2 { function write($cmd) { if (!($this->bitmap & NET_SSH2_MASK_LOGIN)) { - user_error('Operation disallowed prior to login()', E_USER_NOTICE); + user_error('Operation disallowed prior to login()'); return false; } if (!($this->bitmap & NET_SSH2_MASK_SHELL) && !$this->_initShell()) { - user_error('Unable to initiate an interactive shell session', E_USER_NOTICE); + user_error('Unable to initiate an interactive shell session'); return false; } - return $this->_send_channel_packet(NET_SSH2_CHANNEL_SHELL, $cmd); + return $this->_send_channel_packet($this->_get_interactive_channel(), $cmd); + } + + /** + * Start a subsystem. + * + * Right now only one subsystem at a time is supported. To support multiple subsystem's stopSubsystem() could accept + * a string that contained the name of the subsystem, but at that point, only one subsystem of each type could be opened. + * To support multiple subsystem's of the same name maybe it'd be best if startSubsystem() generated a new channel id and + * returns that and then that that was passed into stopSubsystem() but that'll be saved for a future date and implemented + * if there's sufficient demand for such a feature. + * + * @see Net_SSH2::stopSubsystem() + * @param String $subsystem + * @return Boolean + * @access public + */ + function startSubsystem($subsystem) + { + $this->window_size_server_to_client[NET_SSH2_CHANNEL_SUBSYSTEM] = $this->window_size; + + $packet = pack('CNa*N3', + NET_SSH2_MSG_CHANNEL_OPEN, strlen('session'), 'session', NET_SSH2_CHANNEL_SUBSYSTEM, $this->window_size, 0x4000); + + if (!$this->_send_binary_packet($packet)) { + return false; + } + + $this->channel_status[NET_SSH2_CHANNEL_SUBSYSTEM] = NET_SSH2_MSG_CHANNEL_OPEN; + + $response = $this->_get_channel_packet(NET_SSH2_CHANNEL_SUBSYSTEM); + if ($response === false) { + return false; + } + + $packet = pack('CNNa*CNa*', + NET_SSH2_MSG_CHANNEL_REQUEST, $this->server_channels[NET_SSH2_CHANNEL_SUBSYSTEM], strlen('subsystem'), 'subsystem', 1, strlen($subsystem), $subsystem); + if (!$this->_send_binary_packet($packet)) { + return false; + } + + $this->channel_status[NET_SSH2_CHANNEL_SUBSYSTEM] = NET_SSH2_MSG_CHANNEL_REQUEST; + + $response = $this->_get_channel_packet(NET_SSH2_CHANNEL_SUBSYSTEM); + + if ($response === false) { + return false; + } + + $this->channel_status[NET_SSH2_CHANNEL_SUBSYSTEM] = NET_SSH2_MSG_CHANNEL_DATA; + + $this->bitmap |= NET_SSH2_MASK_SHELL; + $this->in_subsystem = true; + + return true; + } + + /** + * Stops a subsystem. + * + * @see Net_SSH2::startSubsystem() + * @return Boolean + * @access public + */ + function stopSubsystem() + { + $this->in_subsystem = false; + $this->_close_channel(NET_SSH2_CHANNEL_SUBSYSTEM); + return true; + } + + /** + * Closes a channel + * + * If read() timed out you might want to just close the channel and have it auto-restart on the next read() call + * + * @access public + */ + function reset() + { + $this->_close_channel($this->_get_interactive_channel()); + } + + /** + * Is timeout? + * + * Did exec() or read() return because they timed out or because they encountered the end? + * + * @access public + */ + function isTimeout() + { + return $this->is_timeout; } /** @@ -1824,6 +2536,9 @@ class Net_SSH2 { function disconnect() { $this->_disconnect(NET_SSH2_DISCONNECT_BY_APPLICATION); + if (isset($this->realtime_log_file) && is_resource($this->realtime_log_file)) { + fclose($this->realtime_log_file); + } } /** @@ -1839,6 +2554,16 @@ class Net_SSH2 { $this->disconnect(); } + /** + * Is the connection still active? + * + * @access public + */ + function isConnected() + { + return $this->bitmap & NET_SSH2_MASK_LOGIN; + } + /** * Gets Binary Packets * @@ -1850,35 +2575,48 @@ class Net_SSH2 { */ function _get_binary_packet() { - if (feof($this->fsock)) { - user_error('Connection closed prematurely', E_USER_NOTICE); + if (!is_resource($this->fsock) || feof($this->fsock)) { + user_error('Connection closed prematurely'); + $this->bitmap = 0; return false; } $start = strtok(microtime(), ' ') + strtok(''); // http://php.net/microtime#61838 $raw = fread($this->fsock, $this->decrypt_block_size); - $stop = strtok(microtime(), ' ') + strtok(''); - if (empty($raw)) { + if (!strlen($raw)) { return ''; } if ($this->decrypt !== false) { $raw = $this->decrypt->decrypt($raw); } + if ($raw === false) { + user_error('Unable to decrypt content'); + return false; + } extract(unpack('Npacket_length/Cpadding_length', $this->_string_shift($raw, 5))); $remaining_length = $packet_length + 4 - $this->decrypt_block_size; + + // quoting , + // "implementations SHOULD check that the packet length is reasonable" + // PuTTY uses 0x9000 as the actual max packet size and so to shall we + if ($remaining_length < -$this->decrypt_block_size || $remaining_length > 0x9000 || $remaining_length % $this->decrypt_block_size != 0) { + user_error('Invalid size'); + return false; + } + $buffer = ''; while ($remaining_length > 0) { $temp = fread($this->fsock, $remaining_length); $buffer.= $temp; $remaining_length-= strlen($temp); } - if (!empty($buffer)) { + $stop = strtok(microtime(), ' ') + strtok(''); + if (strlen($buffer)) { $raw.= $this->decrypt !== false ? $this->decrypt->decrypt($buffer) : $buffer; - $buffer = $temp = ''; } $payload = $this->_string_shift($raw, $packet_length - $padding_length - 1); @@ -1887,7 +2625,7 @@ class Net_SSH2 { if ($this->hmac_check !== false) { $hmac = fread($this->fsock, $this->hmac_size); if ($hmac != $this->hmac_check->hash(pack('NNCa*', $this->get_seq_no, $packet_length, $padding_length, $payload . $padding))) { - user_error('Invalid HMAC', E_USER_NOTICE); + user_error('Invalid HMAC'); return false; } } @@ -1899,12 +2637,12 @@ class Net_SSH2 { $this->get_seq_no++; if (defined('NET_SSH2_LOGGING')) { - $temp = isset($this->message_numbers[ord($payload[0])]) ? $this->message_numbers[ord($payload[0])] : 'UNKNOWN (' . ord($payload[0]) . ')'; - $this->message_number_log[] = '<- ' . $temp . - ' (' . round($stop - $start, 4) . 's)'; - if (NET_SSH2_LOGGING == NET_SSH2_LOG_COMPLEX) { - $this->message_log[] = substr($payload, 1); - } + $current = strtok(microtime(), ' ') + strtok(''); + $message_number = isset($this->message_numbers[ord($payload[0])]) ? $this->message_numbers[ord($payload[0])] : 'UNKNOWN (' . ord($payload[0]) . ')'; + $message_number = '<- ' . $message_number . + ' (since last: ' . round($current - $this->last_packet, 4) . ', network: ' . round($stop - $start, 4) . 's)'; + $this->_append_log($message_number, $payload); + $this->last_packet = $current; } return $this->_filter($payload); @@ -1926,7 +2664,7 @@ class Net_SSH2 { $this->_string_shift($payload, 1); extract(unpack('Nreason_code/Nlength', $this->_string_shift($payload, 8))); $this->errors[] = 'SSH_MSG_DISCONNECT: ' . $this->disconnect_reasons[$reason_code] . "\r\n" . utf8_decode($this->_string_shift($payload, $length)); - $this->bitmask = 0; + $this->bitmap = 0; return false; case NET_SSH2_MSG_IGNORE: $payload = $this->_get_binary_packet(); @@ -1942,7 +2680,7 @@ class Net_SSH2 { case NET_SSH2_MSG_KEXINIT: if ($this->session_id !== false) { if (!$this->_key_exchange($payload)) { - $this->bitmask = 0; + $this->bitmap = 0; return false; } $payload = $this->_get_binary_packet(); @@ -1953,7 +2691,7 @@ class Net_SSH2 { if (($this->bitmap & NET_SSH2_MASK_CONSTRUCTOR) && !($this->bitmap & NET_SSH2_MASK_LOGIN) && ord($payload[0]) == NET_SSH2_MSG_USERAUTH_BANNER) { $this->_string_shift($payload, 1); extract(unpack('Nlength', $this->_string_shift($payload, 4))); - $this->errors[] = 'SSH_MSG_USERAUTH_BANNER: ' . utf8_decode($this->_string_shift($payload, $length)); + $this->banner_message = utf8_decode($this->_string_shift($payload, $length)); $payload = $this->_get_binary_packet(); } @@ -1973,7 +2711,7 @@ class Net_SSH2 { break; case NET_SSH2_MSG_CHANNEL_OPEN: // see http://tools.ietf.org/html/rfc4254#section-5.1 $this->_string_shift($payload, 1); - extract(unpack('N', $this->_string_shift($payload, 4))); + extract(unpack('Nlength', $this->_string_shift($payload, 4))); $this->errors[] = 'SSH_MSG_CHANNEL_OPEN: ' . utf8_decode($this->_string_shift($payload, $length)); $this->_string_shift($payload, 4); // skip over client channel @@ -1989,13 +2727,62 @@ class Net_SSH2 { $payload = $this->_get_binary_packet(); break; case NET_SSH2_MSG_CHANNEL_WINDOW_ADJUST: - $payload = $this->_get_binary_packet(); + $this->_string_shift($payload, 1); + extract(unpack('Nchannel', $this->_string_shift($payload, 4))); + extract(unpack('Nwindow_size', $this->_string_shift($payload, 4))); + $this->window_size_client_to_server[$channel]+= $window_size; + + $payload = ($this->bitmap & NET_SSH2_MASK_WINDOW_ADJUST) ? true : $this->_get_binary_packet(); } } return $payload; } + /** + * Enable Quiet Mode + * + * Suppress stderr from output + * + * @access public + */ + function enableQuietMode() + { + $this->quiet_mode = true; + } + + /** + * Disable Quiet Mode + * + * Show stderr in output + * + * @access public + */ + function disableQuietMode() + { + $this->quiet_mode = false; + } + + /** + * Enable request-pty when using exec() + * + * @access public + */ + function enablePTY() + { + $this->request_pty = true; + } + + /** + * Disable request-pty when using exec() + * + * @access public + */ + function disablePTY() + { + $this->request_pty = false; + } + /** * Gets channel data * @@ -2012,31 +2799,66 @@ class Net_SSH2 { } while (true) { - $response = $this->_get_binary_packet(); - if ($response === false) { - user_error('Connection closed by server', E_USER_NOTICE); - return false; + if ($this->curTimeout) { + if ($this->curTimeout < 0) { + $this->is_timeout = true; + return true; + } + + $read = array($this->fsock); + $write = $except = null; + + $start = strtok(microtime(), ' ') + strtok(''); // http://php.net/microtime#61838 + $sec = floor($this->curTimeout); + $usec = 1000000 * ($this->curTimeout - $sec); + // on windows this returns a "Warning: Invalid CRT parameters detected" error + if (!@stream_select($read, $write, $except, $sec, $usec) && !count($read)) { + $this->is_timeout = true; + return true; + } + $elapsed = strtok(microtime(), ' ') + strtok('') - $start; + $this->curTimeout-= $elapsed; } - if (empty($response)) { + $response = $this->_get_binary_packet(); + if ($response === false) { + user_error('Connection closed by server'); + return false; + } + if ($client_channel == -1 && $response === true) { + return true; + } + if (!strlen($response)) { return ''; } extract(unpack('Ctype/Nchannel', $this->_string_shift($response, 5))); + $this->window_size_server_to_client[$channel]-= strlen($response) + 4; + + // resize the window, if appropriate + if ($this->window_size_server_to_client[$channel] < 0) { + $packet = pack('CNN', NET_SSH2_MSG_CHANNEL_WINDOW_ADJUST, $this->server_channels[$channel], $this->window_size); + if (!$this->_send_binary_packet($packet)) { + return false; + } + $this->window_size_server_to_client[$channel]+= $this->window_size; + } + switch ($this->channel_status[$channel]) { case NET_SSH2_MSG_CHANNEL_OPEN: switch ($type) { case NET_SSH2_MSG_CHANNEL_OPEN_CONFIRMATION: extract(unpack('Nserver_channel', $this->_string_shift($response, 4))); - $this->server_channels[$client_channel] = $server_channel; - $this->_string_shift($response, 4); // skip over (server) window size + $this->server_channels[$channel] = $server_channel; + extract(unpack('Nwindow_size', $this->_string_shift($response, 4))); + $this->window_size_client_to_server[$channel] = $window_size; $temp = unpack('Npacket_size_client_to_server', $this->_string_shift($response, 4)); - $this->packet_size_client_to_server[$client_channel] = $temp['packet_size_client_to_server']; - return true; + $this->packet_size_client_to_server[$channel] = $temp['packet_size_client_to_server']; + return $client_channel == $channel ? true : $this->_get_channel_packet($client_channel, $skip_extended); //case NET_SSH2_MSG_CHANNEL_OPEN_FAILURE: default: - user_error('Unable to open channel', E_USER_NOTICE); + user_error('Unable to open channel'); return $this->_disconnect(NET_SSH2_DISCONNECT_BY_APPLICATION); } break; @@ -2044,23 +2866,27 @@ class Net_SSH2 { switch ($type) { case NET_SSH2_MSG_CHANNEL_SUCCESS: return true; - //case NET_SSH2_MSG_CHANNEL_FAILURE: + case NET_SSH2_MSG_CHANNEL_FAILURE: + return false; default: - user_error('Unable to request pseudo-terminal', E_USER_NOTICE); + user_error('Unable to fulfill channel request'); return $this->_disconnect(NET_SSH2_DISCONNECT_BY_APPLICATION); } - + case NET_SSH2_MSG_CHANNEL_CLOSE: + return $type == NET_SSH2_MSG_CHANNEL_CLOSE ? true : $this->_get_channel_packet($client_channel, $skip_extended); } + // ie. $this->channel_status[$channel] == NET_SSH2_MSG_CHANNEL_DATA + switch ($type) { case NET_SSH2_MSG_CHANNEL_DATA: /* - if ($client_channel == NET_SSH2_CHANNEL_EXEC) { + if ($channel == NET_SSH2_CHANNEL_EXEC) { // SCP requires null packets, such as this, be sent. further, in the case of the ssh.com SSH server - // this actually seems to make things twice as fast. more to the point, the message right after + // this actually seems to make things twice as fast. more to the point, the message right after // SSH_MSG_CHANNEL_DATA (usually SSH_MSG_IGNORE) won't block for as long as it would have otherwise. // in OpenSSH it slows things down but only by a couple thousandths of a second. - $this->_send_channel_packet($client_channel, chr(0)); + $this->_send_channel_packet($channel, chr(0)); } */ extract(unpack('Nlength', $this->_string_shift($response, 4))); @@ -2068,15 +2894,12 @@ class Net_SSH2 { if ($client_channel == $channel) { return $data; } - if (!isset($this->channel_buffers[$client_channel])) { - $this->channel_buffers[$client_channel] = array(); + if (!isset($this->channel_buffers[$channel])) { + $this->channel_buffers[$channel] = array(); } - $this->channel_buffers[$client_channel][] = $data; + $this->channel_buffers[$channel][] = $data; break; case NET_SSH2_MSG_CHANNEL_EXTENDED_DATA: - if ($skip_extended) { - break; - } /* if ($client_channel == NET_SSH2_CHANNEL_EXEC) { $this->_send_channel_packet($client_channel, chr(0)); @@ -2085,13 +2908,17 @@ class Net_SSH2 { // currently, there's only one possible value for $data_type_code: NET_SSH2_EXTENDED_DATA_STDERR extract(unpack('Ndata_type_code/Nlength', $this->_string_shift($response, 8))); $data = $this->_string_shift($response, $length); + $this->stdErrorLog .= $data; + if ($skip_extended || $this->quiet_mode) { + break; + } if ($client_channel == $channel) { return $data; } - if (!isset($this->channel_buffers[$client_channel])) { - $this->channel_buffers[$client_channel] = array(); + if (!isset($this->channel_buffers[$channel])) { + $this->channel_buffers[$channel] = array(); } - $this->channel_buffers[$client_channel][] = $data; + $this->channel_buffers[$channel][] = $data; break; case NET_SSH2_MSG_CHANNEL_REQUEST: extract(unpack('Nlength', $this->_string_shift($response, 4))); @@ -2106,7 +2933,21 @@ class Net_SSH2 { if ($length) { $this->errors[count($this->errors)].= "\r\n" . $this->_string_shift($response, $length); } - //case 'exit-status': + + $this->_send_binary_packet(pack('CN', NET_SSH2_MSG_CHANNEL_EOF, $this->server_channels[$client_channel])); + $this->_send_binary_packet(pack('CN', NET_SSH2_MSG_CHANNEL_CLOSE, $this->server_channels[$channel])); + + $this->channel_status[$channel] = NET_SSH2_MSG_CHANNEL_EOF; + + break; + case 'exit-status': + extract(unpack('Cfalse/Nexit_status', $this->_string_shift($response, 5))); + $this->exit_status = $exit_status; + + // "The client MAY ignore these messages." + // -- http://tools.ietf.org/html/rfc4254#section-6.10 + + break; default: // "Some systems may not implement signals, in which case they SHOULD ignore this message." // -- http://tools.ietf.org/html/rfc4254#section-6.9 @@ -2114,12 +2955,21 @@ class Net_SSH2 { } break; case NET_SSH2_MSG_CHANNEL_CLOSE: - $this->_send_binary_packet(pack('CN', NET_SSH2_MSG_CHANNEL_CLOSE, $this->server_channels[$channel])); + $this->curTimeout = 0; + + if ($this->bitmap & NET_SSH2_MASK_SHELL) { + $this->bitmap&= ~NET_SSH2_MASK_SHELL; + } + if ($this->channel_status[$channel] != NET_SSH2_MSG_CHANNEL_EOF) { + $this->_send_binary_packet(pack('CN', NET_SSH2_MSG_CHANNEL_CLOSE, $this->server_channels[$channel])); + } + + $this->channel_status[$channel] = NET_SSH2_MSG_CHANNEL_CLOSE; return true; case NET_SSH2_MSG_CHANNEL_EOF: break; default: - user_error('Error reading channel data', E_USER_NOTICE); + user_error('Error reading channel data'); return $this->_disconnect(NET_SSH2_DISCONNECT_BY_APPLICATION); } } @@ -2131,14 +2981,16 @@ class Net_SSH2 { * See '6. Binary Packet Protocol' of rfc4253 for more info. * * @param String $data + * @param optional String $logged * @see Net_SSH2::_get_binary_packet() * @return Boolean * @access private */ - function _send_binary_packet($data) + function _send_binary_packet($data, $logged = null) { - if (feof($this->fsock)) { - user_error('Connection closed prematurely', E_USER_NOTICE); + if (!is_resource($this->fsock) || feof($this->fsock)) { + user_error('Connection closed prematurely'); + $this->bitmap = 0; return false; } @@ -2154,11 +3006,7 @@ class Net_SSH2 { $packet_length+= (($this->encrypt_block_size - 1) * $packet_length) % $this->encrypt_block_size; // subtracting strlen($data) is obvious - subtracting 5 is necessary because of packet_length and padding_length $padding_length = $packet_length - strlen($data) - 5; - - $padding = ''; - for ($i = 0; $i < $padding_length; $i++) { - $padding.= chr(crypt_random(0, 255)); - } + $padding = crypt_random_string($padding_length); // we subtract 4 from packet_length because the packet_length field isn't supposed to include itself $packet = pack('NCa*', $packet_length - 4, $padding_length, $data . $padding); @@ -2177,17 +3025,93 @@ class Net_SSH2 { $stop = strtok(microtime(), ' ') + strtok(''); if (defined('NET_SSH2_LOGGING')) { - $temp = isset($this->message_numbers[ord($data[0])]) ? $this->message_numbers[ord($data[0])] : 'UNKNOWN (' . ord($data[0]) . ')'; - $this->message_number_log[] = '-> ' . $temp . - ' (' . round($stop - $start, 4) . 's)'; - if (NET_SSH2_LOGGING == NET_SSH2_LOG_COMPLEX) { - $this->message_log[] = substr($data, 1); - } + $current = strtok(microtime(), ' ') + strtok(''); + $message_number = isset($this->message_numbers[ord($data[0])]) ? $this->message_numbers[ord($data[0])] : 'UNKNOWN (' . ord($data[0]) . ')'; + $message_number = '-> ' . $message_number . + ' (since last: ' . round($current - $this->last_packet, 4) . ', network: ' . round($stop - $start, 4) . 's)'; + $this->_append_log($message_number, isset($logged) ? $logged : $data); + $this->last_packet = $current; } return $result; } + /** + * Logs data packets + * + * Makes sure that only the last 1MB worth of packets will be logged + * + * @param String $data + * @access private + */ + function _append_log($message_number, $message) + { + // remove the byte identifying the message type from all but the first two messages (ie. the identification strings) + if (strlen($message_number) > 2) { + $this->_string_shift($message); + } + + switch (NET_SSH2_LOGGING) { + // useful for benchmarks + case NET_SSH2_LOG_SIMPLE: + $this->message_number_log[] = $message_number; + break; + // the most useful log for SSH2 + case NET_SSH2_LOG_COMPLEX: + $this->message_number_log[] = $message_number; + $this->log_size+= strlen($message); + $this->message_log[] = $message; + while ($this->log_size > NET_SSH2_LOG_MAX_SIZE) { + $this->log_size-= strlen(array_shift($this->message_log)); + array_shift($this->message_number_log); + } + break; + // dump the output out realtime; packets may be interspersed with non packets, + // passwords won't be filtered out and select other packets may not be correctly + // identified + case NET_SSH2_LOG_REALTIME: + switch (PHP_SAPI) { + case 'cli': + $start = $stop = "\r\n"; + break; + default: + $start = '
';
+                        $stop = '
'; + } + echo $start . $this->_format_log(array($message), array($message_number)) . $stop; + @flush(); + @ob_flush(); + break; + // basically the same thing as NET_SSH2_LOG_REALTIME with the caveat that NET_SSH2_LOG_REALTIME_FILE + // needs to be defined and that the resultant log file will be capped out at NET_SSH2_LOG_MAX_SIZE. + // the earliest part of the log file is denoted by the first <<< START >>> and is not going to necessarily + // at the beginning of the file + case NET_SSH2_LOG_REALTIME_FILE: + if (!isset($this->realtime_log_file)) { + // PHP doesn't seem to like using constants in fopen() + $filename = NET_SSH2_LOG_REALTIME_FILENAME; + $fp = fopen($filename, 'w'); + $this->realtime_log_file = $fp; + } + if (!is_resource($this->realtime_log_file)) { + break; + } + $entry = $this->_format_log(array($message), array($message_number)); + if ($this->realtime_log_wrap) { + $temp = "<<< START >>>\r\n"; + $entry.= $temp; + fseek($this->realtime_log_file, ftell($this->realtime_log_file) - strlen($temp)); + } + $this->realtime_log_size+= strlen($entry); + if ($this->realtime_log_size > NET_SSH2_LOG_MAX_SIZE) { + fseek($this->realtime_log_file, 0); + $this->realtime_log_size = strlen($entry); + $this->realtime_log_wrap = true; + } + fputs($this->realtime_log_file, $entry); + } + } + /** * Sends channel data * @@ -2200,39 +3124,49 @@ class Net_SSH2 { */ function _send_channel_packet($client_channel, $data) { - while (strlen($data) > $this->packet_size_client_to_server[$client_channel]) { - // resize the window, if appropriate - $this->window_size_client_to_server[$client_channel]-= $this->packet_size_client_to_server[$client_channel]; - if ($this->window_size_client_to_server[$client_channel] < 0) { - $packet = pack('CNN', NET_SSH2_MSG_CHANNEL_WINDOW_ADJUST, $this->server_channels[$client_channel], $this->window_size); - if (!$this->_send_binary_packet($packet)) { - return false; - } - $this->window_size_client_to_server[$client_channel]+= $this->window_size; + /* The maximum amount of data allowed is determined by the maximum + packet size for the channel, and the current window size, whichever + is smaller. + + -- http://tools.ietf.org/html/rfc4254#section-5.2 */ + $max_size = min( + $this->packet_size_client_to_server[$client_channel], + $this->window_size_client_to_server[$client_channel] + ) - 4; + while (strlen($data) > $max_size) { + if (!$this->window_size_client_to_server[$client_channel]) { + $this->bitmap^= NET_SSH2_MASK_WINDOW_ADJUST; + // using an invalid channel will let the buffers be built up for the valid channels + $output = $this->_get_channel_packet(-1); + $this->bitmap^= NET_SSH2_MASK_WINDOW_ADJUST; + $max_size = min( + $this->packet_size_client_to_server[$client_channel], + $this->window_size_client_to_server[$client_channel] + ) - 4; } $packet = pack('CN2a*', NET_SSH2_MSG_CHANNEL_DATA, $this->server_channels[$client_channel], - $this->packet_size_client_to_server[$client_channel], - $this->_string_shift($data, $this->packet_size_client_to_server[$client_channel]) + $max_size, + $this->_string_shift($data, $max_size) ); + $this->window_size_client_to_server[$client_channel]-= $max_size + 4; + if (!$this->_send_binary_packet($packet)) { return false; } } - // resize the window, if appropriate - $this->window_size_client_to_server[$client_channel]-= strlen($data); - if ($this->window_size_client_to_server[$client_channel] < 0) { - $packet = pack('CNN', NET_SSH2_MSG_CHANNEL_WINDOW_ADJUST, $this->server_channels[$client_channel], $this->window_size); - if (!$this->_send_binary_packet($packet)) { - return false; - } - $this->window_size_client_to_server[$client_channel]+= $this->window_size; + if (strlen($data) >= $this->window_size_client_to_server[$client_channel] - 4) { + $this->bitmap^= NET_SSH2_MASK_WINDOW_ADJUST; + $this->_get_channel_packet(-1); + $this->bitmap^= NET_SSH2_MASK_WINDOW_ADJUST; } + $this->window_size_client_to_server[$client_channel]-= strlen($data) + 4; + return $this->_send_binary_packet(pack('CN2a*', NET_SSH2_MSG_CHANNEL_DATA, $this->server_channels[$client_channel], @@ -2248,21 +3182,33 @@ class Net_SSH2 { * for SCP more than anything. * * @param Integer $client_channel + * @param Boolean $want_reply * @return Boolean * @access private */ - function _close_channel($client_channel) + function _close_channel($client_channel, $want_reply = false) { // see http://tools.ietf.org/html/rfc4254#section-5.3 - $packet = pack('CN', - NET_SSH2_MSG_CHANNEL_EOF, - $this->server_channels[$client_channel]); - if (!$this->_send_binary_packet($packet)) { - return false; + $this->_send_binary_packet(pack('CN', NET_SSH2_MSG_CHANNEL_EOF, $this->server_channels[$client_channel])); + + if (!$want_reply) { + $this->_send_binary_packet(pack('CN', NET_SSH2_MSG_CHANNEL_CLOSE, $this->server_channels[$client_channel])); } - while ($this->_get_channel_packet($client_channel) !== true); + $this->channel_status[$client_channel] = NET_SSH2_MSG_CHANNEL_CLOSE; + + $this->curTimeout = 0; + + while (!is_bool($this->_get_channel_packet($client_channel))); + + if ($want_reply) { + $this->_send_binary_packet(pack('CN', NET_SSH2_MSG_CHANNEL_CLOSE, $this->server_channels[$client_channel])); + } + + if ($this->bitmap & NET_SSH2_MASK_SHELL) { + $this->bitmap&= ~NET_SSH2_MASK_SHELL; + } } /** @@ -2360,38 +3306,44 @@ class Net_SSH2 { */ function _format_log($message_log, $message_number_log) { - static $boundary = ':', $long_width = 65, $short_width = 16; - $output = ''; for ($i = 0; $i < count($message_log); $i++) { $output.= $message_number_log[$i] . "\r\n"; $current_log = $message_log[$i]; $j = 0; do { - if (!empty($current_log)) { + if (strlen($current_log)) { $output.= str_pad(dechex($j), 7, '0', STR_PAD_LEFT) . '0 '; } - $fragment = $this->_string_shift($current_log, $short_width); - $hex = substr( - preg_replace( - '#(.)#es', - '"' . $boundary . '" . str_pad(dechex(ord(substr("\\1", -1))), 2, "0", STR_PAD_LEFT)', - $fragment), - strlen($boundary) - ); + $fragment = $this->_string_shift($current_log, $this->log_short_width); + $hex = substr(preg_replace_callback('#.#s', array($this, '_format_log_helper'), $fragment), strlen($this->log_boundary)); // replace non ASCII printable characters with dots // http://en.wikipedia.org/wiki/ASCII#ASCII_printable_characters // also replace < with a . since < messes up the output on web browsers $raw = preg_replace('#[^\x20-\x7E]|<#', '.', $fragment); - $output.= str_pad($hex, $long_width - $short_width, ' ') . $raw . "\r\n"; + $output.= str_pad($hex, $this->log_long_width - $this->log_short_width, ' ') . $raw . "\r\n"; $j++; - } while (!empty($current_log)); + } while (strlen($current_log)); $output.= "\r\n"; } return $output; } + /** + * Helper function for _format_log + * + * For use with preg_replace_callback() + * + * @param Array $matches + * @access private + * @return String + */ + function _format_log_helper($matches) + { + return $this->log_boundary . str_pad(dechex(ord($matches[0])), 2, '0', STR_PAD_LEFT); + } + /** * Returns all errors * @@ -2535,6 +3487,20 @@ class Net_SSH2 { return $this->languages_client_to_server; } + /** + * Returns the banner message. + * + * Quoting from the RFC, "in some jurisdictions, sending a warning message before + * authentication may be relevant for getting legal protection." + * + * @return String + * @access public + */ + function getBannerMessage() + { + return $this->banner_message; + } + /** * Returns the server public host key. * @@ -2552,8 +3518,18 @@ class Net_SSH2 { extract(unpack('Nlength', $this->_string_shift($server_public_host_key, 4))); $this->_string_shift($server_public_host_key, $length); + if ($this->signature_validated) { + return $this->bitmap ? + $this->signature_format . ' ' . base64_encode($this->server_public_host_key) : + false; + } + + $this->signature_validated = true; + switch ($this->signature_format) { case 'ssh-dss': + $zero = new Math_BigInteger(); + $temp = unpack('Nlength', $this->_string_shift($server_public_host_key, 4)); $p = new Math_BigInteger($this->_string_shift($server_public_host_key, $temp['length']), -256); @@ -2571,16 +3547,20 @@ class Net_SSH2 { padding, unsigned, and in network byte order). */ $temp = unpack('Nlength', $this->_string_shift($signature, 4)); if ($temp['length'] != 40) { - user_error('Invalid signature', E_USER_NOTICE); + user_error('Invalid signature'); return $this->_disconnect(NET_SSH2_DISCONNECT_KEY_EXCHANGE_FAILED); } $r = new Math_BigInteger($this->_string_shift($signature, 20), 256); $s = new Math_BigInteger($this->_string_shift($signature, 20), 256); - if ($r->compare($q) >= 0 || $s->compare($q) >= 0) { - user_error('Invalid signature', E_USER_NOTICE); - return $this->_disconnect(NET_SSH2_DISCONNECT_KEY_EXCHANGE_FAILED); + switch (true) { + case $r->equals($zero): + case $r->compare($q) >= 0: + case $s->equals($zero): + case $s->compare($q) >= 0: + user_error('Invalid signature'); + return $this->_disconnect(NET_SSH2_DISCONNECT_KEY_EXCHANGE_FAILED); } $w = $s->modInverse($q); @@ -2599,7 +3579,7 @@ class Net_SSH2 { list(, $v) = $v->divide($q); if (!$v->equals($r)) { - user_error('Bad server signature', E_USER_NOTICE); + user_error('Bad server signature'); return $this->_disconnect(NET_SSH2_DISCONNECT_HOST_KEY_NOT_VERIFIABLE); } @@ -2617,14 +3597,14 @@ class Net_SSH2 { $signature = $this->_string_shift($signature, $temp['length']); if (!class_exists('Crypt_RSA')) { - require_once('Crypt/RSA.php'); + include_once 'Crypt/RSA.php'; } $rsa = new Crypt_RSA(); $rsa->setSignatureMode(CRYPT_RSA_SIGNATURE_PKCS1); $rsa->loadKey(array('e' => $e, 'n' => $n), CRYPT_RSA_PUBLIC_FORMAT_RAW); if (!$rsa->verify($this->exchange_hash, $signature)) { - user_error('Bad server signature', E_USER_NOTICE); + user_error('Bad server signature'); return $this->_disconnect(NET_SSH2_DISCONNECT_HOST_KEY_NOT_VERIFIABLE); } */ @@ -2639,7 +3619,7 @@ class Net_SSH2 { // also, see SSHRSA.c (rsa2_verifysig) in PuTTy's source. if ($s->compare(new Math_BigInteger()) < 0 || $s->compare($n->subtract(new Math_BigInteger(1))) > 0) { - user_error('Invalid signature', E_USER_NOTICE); + user_error('Invalid signature'); return $this->_disconnect(NET_SSH2_DISCONNECT_KEY_EXCHANGE_FAILED); } @@ -2650,11 +3630,57 @@ class Net_SSH2 { $h = chr(0x01) . str_repeat(chr(0xFF), $nLength - 3 - strlen($h)) . $h; if ($s != $h) { - user_error('Bad server signature', E_USER_NOTICE); + user_error('Bad server signature'); return $this->_disconnect(NET_SSH2_DISCONNECT_HOST_KEY_NOT_VERIFIABLE); } + break; + default: + user_error('Unsupported signature format'); + return $this->_disconnect(NET_SSH2_DISCONNECT_HOST_KEY_NOT_VERIFIABLE); } - return $this->server_public_host_key; + return $this->signature_format . ' ' . base64_encode($this->server_public_host_key); } -} \ No newline at end of file + + /** + * Returns the exit status of an SSH command or false. + * + * @return Integer or false + * @access public + */ + function getExitStatus() + { + if (is_null($this->exit_status)) { + return false; + } + return $this->exit_status; + } + + /** + * Is a path includable? + * + * @return Boolean + * @access private + */ + function _is_includable($suffix) + { + // stream_resolve_include_path was introduced in PHP 5.3.2 + if (function_exists('stream_resolve_include_path')) { + return stream_resolve_include_path($suffix) !== false; + } + + $paths = PATH_SEPARATOR == ':' ? + preg_split('#(?, Arpad Ray - * @link http://php.net/function.array_fill - * @author Jim Wigginton - * @version $Revision$ - * @since PHP 4.2.0 - */ -function php_compat_array_fill($start_index, $num, $value) -{ - if ($num <= 0) { - user_error('array_fill(): Number of elements must be positive', E_USER_WARNING); - - return false; - } - - $temp = array(); - - $end_index = $start_index + $num; - for ($i = (int) $start_index; $i < $end_index; $i++) { - $temp[$i] = $value; - } - - return $temp; -} - -// Define -if (!function_exists('array_fill')) { - function array_fill($start_index, $num, $value) - { - return php_compat_array_fill($start_index, $num, $value); - } -} \ No newline at end of file diff --git a/lam/lib/3rdParty/phpseclib/PHP/Compat/Function/bcpowmod.php b/lam/lib/3rdParty/phpseclib/PHP/Compat/Function/bcpowmod.php deleted file mode 100644 index 6c47c27b..00000000 --- a/lam/lib/3rdParty/phpseclib/PHP/Compat/Function/bcpowmod.php +++ /dev/null @@ -1,66 +0,0 @@ -, Arpad Ray - * @link http://php.net/function.bcpowmod - * @author Sara Golemon - * @version $Revision$ - * @since PHP 5.0.0 - * @require PHP 4.0.0 (user_error) - */ -function php_compat_bcpowmod($x, $y, $modulus, $scale = 0) -{ - // Sanity check - if (!is_scalar($x)) { - user_error('bcpowmod() expects parameter 1 to be string, ' . - gettype($x) . ' given', E_USER_WARNING); - return false; - } - - if (!is_scalar($y)) { - user_error('bcpowmod() expects parameter 2 to be string, ' . - gettype($y) . ' given', E_USER_WARNING); - return false; - } - - if (!is_scalar($modulus)) { - user_error('bcpowmod() expects parameter 3 to be string, ' . - gettype($modulus) . ' given', E_USER_WARNING); - return false; - } - - if (!is_scalar($scale)) { - user_error('bcpowmod() expects parameter 4 to be integer, ' . - gettype($scale) . ' given', E_USER_WARNING); - return false; - } - - $t = '1'; - while (bccomp($y, '0')) { - if (bccomp(bcmod($y, '2'), '0')) { - $t = bcmod(bcmul($t, $x), $modulus); - $y = bcsub($y, '1'); - } - - $x = bcmod(bcmul($x, $x), $modulus); - $y = bcdiv($y, '2'); - } - - return $t; -} - - -// Define -if (!function_exists('bcpowmod')) { - function bcpowmod($x, $y, $modulus, $scale = 0) - { - return php_compat_bcpowmod($x, $y, $modulus, $scale); - } -} \ No newline at end of file diff --git a/lam/lib/3rdParty/phpseclib/PHP/Compat/Function/str_split.php b/lam/lib/3rdParty/phpseclib/PHP/Compat/Function/str_split.php deleted file mode 100644 index e1bde7ba..00000000 --- a/lam/lib/3rdParty/phpseclib/PHP/Compat/Function/str_split.php +++ /dev/null @@ -1,59 +0,0 @@ -, Arpad Ray - * @link http://php.net/function.str_split - * @author Aidan Lister - * @version $Revision$ - * @since PHP 5 - * @require PHP 4.0.0 (user_error) - */ -function php_compat_str_split($string, $split_length = 1) -{ - if (!is_scalar($split_length)) { - user_error('str_split() expects parameter 2 to be long, ' . - gettype($split_length) . ' given', E_USER_WARNING); - return false; - } - - $split_length = (int) $split_length; - if ($split_length < 1) { - user_error('str_split() The length of each segment must be greater than zero', E_USER_WARNING); - return false; - } - - // Select split method - if ($split_length < 65536) { - // Faster, but only works for less than 2^16 - preg_match_all('/.{1,' . $split_length . '}/s', $string, $matches); - return $matches[0]; - } else { - // Required due to preg limitations - $arr = array(); - $idx = 0; - $pos = 0; - $len = strlen($string); - - while ($len > 0) { - $blk = ($len < $split_length) ? $len : $split_length; - $arr[$idx++] = substr($string, $pos, $blk); - $pos += $blk; - $len -= $blk; - } - - return $arr; - } -} - - -// Define -if (!function_exists('str_split')) { - function str_split($string, $split_length = 1) - { - return php_compat_str_split($string, $split_length); - } -}