<?php | |
/** | |
* Pure-PHP implementation of DES. | |
* | |
* Uses mcrypt, if available, and an internal implementation, otherwise. | |
* | |
* PHP versions 4 and 5 | |
* | |
* Useful resources are as follows: | |
* | |
* - {@link http://en.wikipedia.org/wiki/DES_supplementary_material Wikipedia: DES supplementary material} | |
* - {@link http://www.itl.nist.gov/fipspubs/fip46-2.htm FIPS 46-2 - (DES), Data Encryption Standard} | |
* - {@link http://www.cs.eku.edu/faculty/styer/460/Encrypt/JS-DES.html JavaScript DES Example} | |
* | |
* Here's a short example of how to use this library: | |
* <code> | |
* <?php | |
* include 'Crypt/DES.php'; | |
* | |
* $des = new Crypt_DES(); | |
* | |
* $des->setKey('abcdefgh'); | |
* | |
* $size = 10 * 1024; | |
* $plaintext = ''; | |
* for ($i = 0; $i < $size; $i++) { | |
* $plaintext.= 'a'; | |
* } | |
* | |
* echo $des->decrypt($des->encrypt($plaintext)); | |
* ?> | |
* </code> | |
* | |
* 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_DES | |
* @author Jim Wigginton <terrafrost@php.net> | |
* @copyright 2007 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 self::_setupKey() | |
* @see self::_processBlock() | |
*/ | |
/** | |
* Contains $keys[CRYPT_DES_ENCRYPT] | |
*/ | |
define('CRYPT_DES_ENCRYPT', 0); | |
/** | |
* Contains $keys[CRYPT_DES_DECRYPT] | |
*/ | |
define('CRYPT_DES_DECRYPT', 1); | |
/**#@-*/ | |
/**#@+ | |
* @access public | |
* @see self::encrypt() | |
* @see self::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_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', 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', 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', 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', CRYPT_MODE_OFB); | |
/**#@-*/ | |
/** | |
* Pure-PHP implementation of DES. | |
* | |
* @package Crypt_DES | |
* @author Jim Wigginton <terrafrost@php.net> | |
* @access public | |
*/ | |
class Crypt_DES extends Crypt_Base | |
{ | |
/** | |
* Block Length of the cipher | |
* | |
* @see Crypt_Base::block_size | |
* @var int | |
* @access private | |
*/ | |
var $block_size = 8; | |
/** | |
* Key Length (in bytes) | |
* | |
* @see Crypt_Base::setKeyLength() | |
* @var int | |
* @access private | |
*/ | |
var $key_length = 8; | |
/** | |
* The namespace used by the cipher for its constants. | |
* | |
* @see Crypt_Base::const_namespace | |
* @var string | |
* @access private | |
*/ | |
var $const_namespace = 'DES'; | |
/** | |
* The mcrypt specific name of the cipher | |
* | |
* @see Crypt_Base::cipher_name_mcrypt | |
* @var string | |
* @access private | |
*/ | |
var $cipher_name_mcrypt = 'des'; | |
/** | |
* The OpenSSL names of the cipher / modes | |
* | |
* @see Crypt_Base::openssl_mode_names | |
* @var array | |
* @access private | |
*/ | |
var $openssl_mode_names = array( | |
CRYPT_MODE_ECB => 'des-ecb', | |
CRYPT_MODE_CBC => 'des-cbc', | |
CRYPT_MODE_CFB => 'des-cfb', | |
CRYPT_MODE_OFB => 'des-ofb' | |
// CRYPT_MODE_CTR is undefined for DES | |
); | |
/** | |
* Optimizing value while CFB-encrypting | |
* | |
* @see Crypt_Base::cfb_init_len | |
* @var int | |
* @access private | |
*/ | |
var $cfb_init_len = 500; | |
/** | |
* Switch for DES/3DES encryption | |
* | |
* Used only if $engine == CRYPT_DES_MODE_INTERNAL | |
* | |
* @see self::_setupKey() | |
* @see self::_processBlock() | |
* @var int | |
* @access private | |
*/ | |
var $des_rounds = 1; | |
/** | |
* max possible size of $key | |
* | |
* @see self::setKey() | |
* @var string | |
* @access private | |
*/ | |
var $key_length_max = 8; | |
/** | |
* The Key Schedule | |
* | |
* @see self::_setupKey() | |
* @var array | |
* @access private | |
*/ | |
var $keys; | |
/** | |
* Shuffle table. | |
* | |
* 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 self::_processBlock() | |
* @see self::_setupKey() | |
* @var array | |
* @access private | |
*/ | |
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 | |
); | |
/** | |
* Test for engine validity | |
* | |
* This is mainly just a wrapper to set things up for Crypt_Base::isValidEngine() | |
* | |
* @see Crypt_Base::isValidEngine() | |
* @param int $engine | |
* @access public | |
* @return bool | |
*/ | |
function isValidEngine($engine) | |
{ | |
if ($this->key_length_max == 8) { | |
if ($engine == CRYPT_ENGINE_OPENSSL) { | |
$this->cipher_name_openssl_ecb = 'des-ecb'; | |
$this->cipher_name_openssl = 'des-' . $this->_openssl_translate_mode(); | |
} | |
} | |
return parent::isValidEngine($engine); | |
} | |
/** | |
* Sets the key. | |
* | |
* Keys can be of any length. DES, itself, uses 64-bit keys (eg. strlen($key) == 8), however, we | |
* only use the first eight, if $key has more then eight characters in it, and pad $key with the | |
* null byte if it is less then eight characters long. | |
* | |
* 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. | |
* | |
* @see Crypt_Base::setKey() | |
* @access public | |
* @param string $key | |
*/ | |
function setKey($key) | |
{ | |
// 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_length_max) { | |
$key = substr($key, 0, $this->key_length_max); | |
} | |
// Sets the key | |
parent::setKey($key); | |
} | |
/** | |
* Encrypts a block | |
* | |
* @see Crypt_Base::_encryptBlock() | |
* @see Crypt_Base::encrypt() | |
* @see self::encrypt() | |
* @access private | |
* @param string $in | |
* @return string | |
*/ | |
function _encryptBlock($in) | |
{ | |
return $this->_processBlock($in, CRYPT_DES_ENCRYPT); | |
} | |
/** | |
* Decrypts a block | |
* | |
* @see Crypt_Base::_decryptBlock() | |
* @see Crypt_Base::decrypt() | |
* @see self::decrypt() | |
* @access private | |
* @param string $in | |
* @return string | |
*/ | |
function _decryptBlock($in) | |
{ | |
return $this->_processBlock($in, CRYPT_DES_DECRYPT); | |
} | |
/** | |
* Encrypts or decrypts a 64-bit block | |
* | |
* $mode should be either CRYPT_DES_ENCRYPT or CRYPT_DES_DECRYPT. See | |
* {@link http://en.wikipedia.org/wiki/Image:Feistel.png Feistel.png} to get a general | |
* idea of what this function does. | |
* | |
* @see self::_encryptBlock() | |
* @see self::_decryptBlock() | |
* @access private | |
* @param string $block | |
* @param int $mode | |
* @return string | |
*/ | |
function _processBlock($block, $mode) | |
{ | |
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]]; | |
} | |
} | |
$keys = $this->keys[$mode]; | |
$ki = -1; | |
// 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"); | |
// 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[ $l & 0xFF] & "\x01\x01\x01\x01\x01\x01\x01\x01"); | |
} | |
/** | |
* Creates the key schedule | |
* | |
* @see Crypt_Base::_setupKey() | |
* @access private | |
*/ | |
function _setupKey() | |
{ | |
if (isset($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 | |
); | |
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 | |
); | |
// 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 | |
); | |
$keys = array(); | |
for ($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"); | |
// 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); | |
$keys[$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; | |
// 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 ] = $val2; | |
} | |
} | |
switch ($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] | |
); | |
} | |
} | |
/** | |
* Setup the performance-optimized function for de/encrypt() | |
* | |
* @see Crypt_Base::_setupInlineCrypt() | |
* @access private | |
*/ | |
function _setupInlineCrypt() | |
{ | |
$lambda_functions =& Crypt_DES::_getLambdaFunctions(); | |
// Engine configuration for: | |
// - DES ($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. | |
// (Currently, for Crypt_DES, one generated $lambda_function cost on php5.5@32bit ~135kb unfreeable mem and ~230kb on php5.5@64bit) | |
// (Currently, for Crypt_TripleDES, one generated $lambda_function cost on php5.5@32bit ~240kb unfreeable mem and ~340kb on php5.5@64bit) | |
// 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 unique hash for our generated code | |
$code_hash = "Crypt_DES, $des_rounds, {$this->mode}"; | |
if ($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. | |
// 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. | |
$code_hash = str_pad($code_hash, 32) . $this->_hashInlineCryptFunction($this->key); | |
} | |
// 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]; | |
} | |
} |