Latest phpseclib stuff and moved into its own dir.
Source: https://github.com/phpseclib/phpseclib/ Commit: 77447a3fc7869773007fa3beeb8d6f8de842ec2a There were bugs.
This commit is contained in:
Mikael Nordfeldth
parent
597eb97bec
commit
1795267df9
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@ -28,7 +28,7 @@
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if (!defined('GNUSOCIAL')) { exit(1); }
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set_include_path(get_include_path() . PATH_SEPARATOR . dirname(__FILE__) . '/extlib/');
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set_include_path(get_include_path() . PATH_SEPARATOR . dirname(__FILE__) . '/extlib/phpseclib');
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class FeedSubException extends Exception
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{
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@ -1,540 +0,0 @@
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<?php
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/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
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/**
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* Pure-PHP implementation of AES.
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*
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* Uses mcrypt, if available, and an internal implementation, otherwise.
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*
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* PHP versions 4 and 5
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*
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* If {@link Crypt_AES::setKeyLength() setKeyLength()} isn't called, it'll be calculated from
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* {@link Crypt_AES::setKey() setKey()}. ie. if the key is 128-bits, the key length will be 128-bits. If it's 136-bits
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* it'll be null-padded to 160-bits and 160 bits will be the key length until {@link Crypt_Rijndael::setKey() setKey()}
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* is called, again, at which point, it'll be recalculated.
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*
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* Since Crypt_AES extends Crypt_Rijndael, some functions are available to be called that, in the context of AES, don't
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* make a whole lot of sense. {@link Crypt_AES::setBlockLength() setBlockLength()}, for instance. Calling that function,
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* however possible, won't do anything (AES has a fixed block length whereas Rijndael has a variable one).
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*
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* Here's a short example of how to use this library:
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* <code>
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* <?php
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* include('Crypt/AES.php');
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*
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* $aes = new Crypt_AES();
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*
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* $aes->setKey('abcdefghijklmnop');
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*
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* $size = 10 * 1024;
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* $plaintext = '';
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* for ($i = 0; $i < $size; $i++) {
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* $plaintext.= 'a';
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* }
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*
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* echo $aes->decrypt($aes->encrypt($plaintext));
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* ?>
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* </code>
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*
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* LICENSE: Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*
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* @category Crypt
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* @package Crypt_AES
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* @author Jim Wigginton <terrafrost@php.net>
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* @copyright MMVIII Jim Wigginton
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* @license http://www.opensource.org/licenses/mit-license.html MIT License
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* @link http://phpseclib.sourceforge.net
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*/
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/**
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* Include Crypt_Rijndael
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*/
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if (!class_exists('Crypt_Rijndael')) {
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require_once 'Rijndael.php';
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}
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/**#@+
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* @access public
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* @see Crypt_AES::encrypt()
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* @see Crypt_AES::decrypt()
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*/
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/**
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* Encrypt / decrypt using the Counter mode.
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*
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* Set to -1 since that's what Crypt/Random.php uses to index the CTR mode.
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*
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* @link http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation#Counter_.28CTR.29
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*/
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define('CRYPT_AES_MODE_CTR', -1);
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/**
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* Encrypt / decrypt using the Electronic Code Book mode.
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*
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* @link http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation#Electronic_codebook_.28ECB.29
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*/
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define('CRYPT_AES_MODE_ECB', 1);
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/**
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* Encrypt / decrypt using the Code Book Chaining mode.
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*
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* @link http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation#Cipher-block_chaining_.28CBC.29
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*/
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define('CRYPT_AES_MODE_CBC', 2);
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/**
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* Encrypt / decrypt using the Cipher Feedback mode.
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*
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* @link http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation#Cipher_feedback_.28CFB.29
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*/
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define('CRYPT_AES_MODE_CFB', 3);
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/**
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* Encrypt / decrypt using the Cipher Feedback mode.
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*
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* @link http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation#Output_feedback_.28OFB.29
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*/
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define('CRYPT_AES_MODE_OFB', 4);
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/**#@-*/
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/**#@+
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* @access private
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* @see Crypt_AES::Crypt_AES()
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*/
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/**
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* Toggles the internal implementation
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*/
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define('CRYPT_AES_MODE_INTERNAL', 1);
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/**
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* Toggles the mcrypt implementation
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*/
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define('CRYPT_AES_MODE_MCRYPT', 2);
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/**#@-*/
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/**
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* Pure-PHP implementation of AES.
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*
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* @author Jim Wigginton <terrafrost@php.net>
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* @version 0.1.0
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* @access public
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* @package Crypt_AES
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*/
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class Crypt_AES extends Crypt_Rijndael {
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/**
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* mcrypt resource for encryption
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*
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* The mcrypt resource can be recreated every time something needs to be created or it can be created just once.
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* Since mcrypt operates in continuous mode, by default, it'll need to be recreated when in non-continuous mode.
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*
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* @see Crypt_AES::encrypt()
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* @var String
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* @access private
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*/
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var $enmcrypt;
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/**
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* mcrypt resource for decryption
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*
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* The mcrypt resource can be recreated every time something needs to be created or it can be created just once.
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* Since mcrypt operates in continuous mode, by default, it'll need to be recreated when in non-continuous mode.
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*
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* @see Crypt_AES::decrypt()
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* @var String
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* @access private
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*/
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var $demcrypt;
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/**
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* mcrypt resource for CFB mode
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*
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* @see Crypt_AES::encrypt()
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* @see Crypt_AES::decrypt()
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* @var String
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* @access private
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*/
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var $ecb;
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/**
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* Default Constructor.
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*
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* Determines whether or not the mcrypt extension should be used. $mode should only, at present, be
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* CRYPT_AES_MODE_ECB or CRYPT_AES_MODE_CBC. If not explictly set, CRYPT_AES_MODE_CBC will be used.
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*
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* @param optional Integer $mode
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* @return Crypt_AES
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* @access public
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*/
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function Crypt_AES($mode = CRYPT_AES_MODE_CBC)
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{
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if ( !defined('CRYPT_AES_MODE') ) {
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switch (true) {
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case extension_loaded('mcrypt') && in_array('rijndael-128', mcrypt_list_algorithms()):
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define('CRYPT_AES_MODE', CRYPT_AES_MODE_MCRYPT);
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break;
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default:
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define('CRYPT_AES_MODE', CRYPT_AES_MODE_INTERNAL);
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}
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}
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switch ( CRYPT_AES_MODE ) {
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case CRYPT_AES_MODE_MCRYPT:
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switch ($mode) {
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case CRYPT_AES_MODE_ECB:
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$this->paddable = true;
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$this->mode = MCRYPT_MODE_ECB;
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break;
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case CRYPT_AES_MODE_CTR:
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// ctr doesn't have a constant associated with it even though it appears to be fairly widely
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// supported. in lieu of knowing just how widely supported it is, i've, for now, opted not to
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// include a compatibility layer. the layer has been implemented but, for now, is commented out.
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$this->mode = 'ctr';
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//$this->mode = in_array('ctr', mcrypt_list_modes()) ? 'ctr' : CRYPT_AES_MODE_CTR;
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break;
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case CRYPT_AES_MODE_CFB:
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$this->mode = 'ncfb';
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break;
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case CRYPT_AES_MODE_OFB:
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$this->mode = MCRYPT_MODE_NOFB;
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break;
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case CRYPT_AES_MODE_CBC:
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default:
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$this->paddable = true;
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$this->mode = MCRYPT_MODE_CBC;
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}
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break;
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default:
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switch ($mode) {
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case CRYPT_AES_MODE_ECB:
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$this->paddable = true;
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$this->mode = CRYPT_RIJNDAEL_MODE_ECB;
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break;
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case CRYPT_AES_MODE_CTR:
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$this->mode = CRYPT_RIJNDAEL_MODE_CTR;
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break;
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case CRYPT_AES_MODE_CFB:
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$this->mode = CRYPT_RIJNDAEL_MODE_CFB;
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break;
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case CRYPT_AES_MODE_OFB:
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$this->mode = CRYPT_RIJNDAEL_MODE_OFB;
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break;
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case CRYPT_AES_MODE_CBC:
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default:
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$this->paddable = true;
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$this->mode = CRYPT_RIJNDAEL_MODE_CBC;
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}
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}
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if (CRYPT_AES_MODE == CRYPT_AES_MODE_INTERNAL) {
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parent::Crypt_Rijndael($this->mode);
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}
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}
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/**
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* Dummy function
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*
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* Since Crypt_AES extends Crypt_Rijndael, this function is, technically, available, but it doesn't do anything.
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*
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* @access public
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* @param Integer $length
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*/
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function setBlockLength($length)
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{
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return;
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}
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/**
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* Sets the initialization vector. (optional)
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*
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* SetIV is not required when CRYPT_RIJNDAEL_MODE_ECB is being used. If not explictly set, it'll be assumed
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* to be all zero's.
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*
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* @access public
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* @param String $iv
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*/
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function setIV($iv)
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{
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parent::setIV($iv);
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if ( CRYPT_AES_MODE == CRYPT_AES_MODE_MCRYPT ) {
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$this->changed = true;
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}
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}
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/**
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* Encrypts a message.
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*
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* $plaintext will be padded with up to 16 additional bytes. Other AES implementations may or may not pad in the
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* same manner. Other common approaches to padding and the reasons why it's necessary are discussed in the following
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* URL:
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*
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* {@link http://www.di-mgt.com.au/cryptopad.html http://www.di-mgt.com.au/cryptopad.html}
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*
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* An alternative to padding is to, separately, send the length of the file. This is what SSH, in fact, does.
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* strlen($plaintext) will still need to be a multiple of 16, however, arbitrary values can be added to make it that
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* length.
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*
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* @see Crypt_AES::decrypt()
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* @access public
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* @param String $plaintext
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*/
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function encrypt($plaintext)
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{
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if ( CRYPT_AES_MODE == CRYPT_AES_MODE_MCRYPT ) {
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$this->_mcryptSetup();
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// re: http://phpseclib.sourceforge.net/cfb-demo.phps
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// using mcrypt's default handing of CFB the above would output two different things. using phpseclib's
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// rewritten CFB implementation the above outputs the same thing twice.
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if ($this->mode == 'ncfb' && $this->continuousBuffer) {
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$iv = &$this->encryptIV;
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$pos = &$this->enbuffer['pos'];
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$len = strlen($plaintext);
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$ciphertext = '';
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$i = 0;
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if ($pos) {
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$orig_pos = $pos;
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$max = 16 - $pos;
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if ($len >= $max) {
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$i = $max;
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$len-= $max;
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$pos = 0;
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} else {
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$i = $len;
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$pos+= $len;
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$len = 0;
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}
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$ciphertext = substr($iv, $orig_pos) ^ $plaintext;
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$iv = substr_replace($iv, $ciphertext, $orig_pos, $i);
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$this->enbuffer['enmcrypt_init'] = true;
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}
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if ($len >= 16) {
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if ($this->enbuffer['enmcrypt_init'] === false || $len > 280) {
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if ($this->enbuffer['enmcrypt_init'] === true) {
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mcrypt_generic_init($this->enmcrypt, $this->key, $iv);
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$this->enbuffer['enmcrypt_init'] = false;
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}
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$ciphertext.= mcrypt_generic($this->enmcrypt, substr($plaintext, $i, $len - $len % 16));
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$iv = substr($ciphertext, -16);
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$len%= 16;
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} else {
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while ($len >= 16) {
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$iv = mcrypt_generic($this->ecb, $iv) ^ substr($plaintext, $i, 16);
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$ciphertext.= $iv;
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$len-= 16;
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$i+= 16;
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}
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}
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}
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if ($len) {
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$iv = mcrypt_generic($this->ecb, $iv);
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$block = $iv ^ substr($plaintext, -$len);
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$iv = substr_replace($iv, $block, 0, $len);
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$ciphertext.= $block;
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$pos = $len;
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}
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return $ciphertext;
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}
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if ($this->paddable) {
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$plaintext = $this->_pad($plaintext);
|
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}
|
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$ciphertext = mcrypt_generic($this->enmcrypt, $plaintext);
|
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|
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if (!$this->continuousBuffer) {
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mcrypt_generic_init($this->enmcrypt, $this->key, $this->iv);
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}
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return $ciphertext;
|
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}
|
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return parent::encrypt($plaintext);
|
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}
|
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|
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/**
|
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* Decrypts a message.
|
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*
|
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* If strlen($ciphertext) is not a multiple of 16, null bytes will be added to the end of the string until it is.
|
||||
*
|
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* @see Crypt_AES::encrypt()
|
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* @access public
|
||||
* @param String $ciphertext
|
||||
*/
|
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function decrypt($ciphertext)
|
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{
|
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if ( CRYPT_AES_MODE == CRYPT_AES_MODE_MCRYPT ) {
|
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$this->_mcryptSetup();
|
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|
||||
if ($this->mode == 'ncfb' && $this->continuousBuffer) {
|
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$iv = &$this->decryptIV;
|
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$pos = &$this->debuffer['pos'];
|
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$len = strlen($ciphertext);
|
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$plaintext = '';
|
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$i = 0;
|
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if ($pos) {
|
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$orig_pos = $pos;
|
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$max = 16 - $pos;
|
||||
if ($len >= $max) {
|
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$i = $max;
|
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$len-= $max;
|
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$pos = 0;
|
||||
} else {
|
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$i = $len;
|
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$pos+= $len;
|
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$len = 0;
|
||||
}
|
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// ie. $i = min($max, $len), $len-= $i, $pos+= $i, $pos%= $blocksize
|
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$plaintext = substr($iv, $orig_pos) ^ $ciphertext;
|
||||
$iv = substr_replace($iv, substr($ciphertext, 0, $i), $orig_pos, $i);
|
||||
}
|
||||
if ($len >= 16) {
|
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$cb = substr($ciphertext, $i, $len - $len % 16);
|
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$plaintext.= mcrypt_generic($this->ecb, $iv . $cb) ^ $cb;
|
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$iv = substr($cb, -16);
|
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$len%= 16;
|
||||
}
|
||||
if ($len) {
|
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$iv = mcrypt_generic($this->ecb, $iv);
|
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$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 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, '', $mode, '');
|
||||
|
||||
if ($mode == 'ncfb') {
|
||||
$this->ecb = mcrypt_module_open(MCRYPT_RIJNDAEL_128, '', MCRYPT_MODE_ECB, '');
|
||||
}
|
||||
|
||||
} // else should mcrypt_generic_deinit be called?
|
||||
|
||||
mcrypt_generic_init($this->demcrypt, $this->key, $this->iv);
|
||||
mcrypt_generic_init($this->enmcrypt, $this->key, $this->iv);
|
||||
|
||||
if ($this->mode == 'ncfb') {
|
||||
mcrypt_generic_init($this->ecb, $this->key, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0");
|
||||
}
|
||||
|
||||
$this->changed = false;
|
||||
}
|
||||
|
||||
/**
|
||||
* Treat consecutive "packets" as if they are a continuous buffer.
|
||||
*
|
||||
* The default behavior.
|
||||
*
|
||||
* @see Crypt_Rijndael::disableContinuousBuffer()
|
||||
* @access public
|
||||
*/
|
||||
function enableContinuousBuffer()
|
||||
{
|
||||
parent::enableContinuousBuffer();
|
||||
|
||||
if (CRYPT_AES_MODE == CRYPT_AES_MODE_MCRYPT) {
|
||||
$this->enbuffer['enmcrypt_init'] = true;
|
||||
$this->debuffer['demcrypt_init'] = true;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Treat consecutive packets as if they are a discontinuous buffer.
|
||||
*
|
||||
* The default behavior.
|
||||
*
|
||||
* @see Crypt_Rijndael::enableContinuousBuffer()
|
||||
* @access public
|
||||
*/
|
||||
function disableContinuousBuffer()
|
||||
{
|
||||
parent::disableContinuousBuffer();
|
||||
|
||||
if (CRYPT_AES_MODE == CRYPT_AES_MODE_MCRYPT) {
|
||||
mcrypt_generic_init($this->enmcrypt, $this->key, $this->iv);
|
||||
mcrypt_generic_init($this->demcrypt, $this->key, $this->iv);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// vim: ts=4:sw=4:et:
|
||||
// vim6: fdl=1:
|
||||
File diff suppressed because it is too large
Load Diff
File diff suppressed because it is too large
Load Diff
|
|
@ -1,492 +0,0 @@
|
|||
<?php
|
||||
/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
|
||||
|
||||
/**
|
||||
* Pure-PHP implementation of RC4.
|
||||
*
|
||||
* Uses mcrypt, if available, and an internal implementation, otherwise.
|
||||
*
|
||||
* PHP versions 4 and 5
|
||||
*
|
||||
* Useful resources are as follows:
|
||||
*
|
||||
* - {@link http://www.mozilla.org/projects/security/pki/nss/draft-kaukonen-cipher-arcfour-03.txt ARCFOUR Algorithm}
|
||||
* - {@link http://en.wikipedia.org/wiki/RC4 - Wikipedia: RC4}
|
||||
*
|
||||
* RC4 is also known as ARCFOUR or ARC4. The reason is elaborated upon at Wikipedia. This class is named RC4 and not
|
||||
* ARCFOUR or ARC4 because RC4 is how it is referred to in the SSH1 specification.
|
||||
*
|
||||
* Here's a short example of how to use this library:
|
||||
* <code>
|
||||
* <?php
|
||||
* include('Crypt/RC4.php');
|
||||
*
|
||||
* $rc4 = new Crypt_RC4();
|
||||
*
|
||||
* $rc4->setKey('abcdefgh');
|
||||
*
|
||||
* $size = 10 * 1024;
|
||||
* $plaintext = '';
|
||||
* for ($i = 0; $i < $size; $i++) {
|
||||
* $plaintext.= 'a';
|
||||
* }
|
||||
*
|
||||
* echo $rc4->decrypt($rc4->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_RC4
|
||||
* @author Jim Wigginton <terrafrost@php.net>
|
||||
* @copyright MMVII Jim Wigginton
|
||||
* @license http://www.opensource.org/licenses/mit-license.html MIT License
|
||||
* @link http://phpseclib.sourceforge.net
|
||||
*/
|
||||
|
||||
/**#@+
|
||||
* @access private
|
||||
* @see Crypt_RC4::Crypt_RC4()
|
||||
*/
|
||||
/**
|
||||
* Toggles the internal implementation
|
||||
*/
|
||||
define('CRYPT_RC4_MODE_INTERNAL', 1);
|
||||
/**
|
||||
* Toggles the mcrypt implementation
|
||||
*/
|
||||
define('CRYPT_RC4_MODE_MCRYPT', 2);
|
||||
/**#@-*/
|
||||
|
||||
/**#@+
|
||||
* @access private
|
||||
* @see Crypt_RC4::_crypt()
|
||||
*/
|
||||
define('CRYPT_RC4_ENCRYPT', 0);
|
||||
define('CRYPT_RC4_DECRYPT', 1);
|
||||
/**#@-*/
|
||||
|
||||
/**
|
||||
* Pure-PHP implementation of RC4.
|
||||
*
|
||||
* @author Jim Wigginton <terrafrost@php.net>
|
||||
* @version 0.1.0
|
||||
* @access public
|
||||
* @package Crypt_RC4
|
||||
*/
|
||||
class Crypt_RC4 {
|
||||
/**
|
||||
* The Key
|
||||
*
|
||||
* @see Crypt_RC4::setKey()
|
||||
* @var String
|
||||
* @access private
|
||||
*/
|
||||
var $key = "\0";
|
||||
|
||||
/**
|
||||
* The Key Stream for encryption
|
||||
*
|
||||
* 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 $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;
|
||||
|
||||
/**
|
||||
* 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;
|
||||
|
||||
/**
|
||||
* Default Constructor.
|
||||
*
|
||||
* Determines whether or not the mcrypt extension should be used.
|
||||
*
|
||||
* @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')) && in_array('arcfour', mcrypt_list_algorithms()):
|
||||
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;
|
||||
}
|
||||
$this->encryptStream = mcrypt_module_open($this->mode, '', MCRYPT_MODE_STREAM, '');
|
||||
$this->decryptStream = mcrypt_module_open($this->mode, '', MCRYPT_MODE_STREAM, '');
|
||||
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* 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 = $key;
|
||||
|
||||
if ( CRYPT_RC4_MODE == CRYPT_RC4_MODE_MCRYPT ) {
|
||||
mcrypt_generic_init($this->encryptStream, $this->key, '');
|
||||
mcrypt_generic_init($this->decryptStream, $this->key, '');
|
||||
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;
|
||||
}
|
||||
|
||||
/**
|
||||
* 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
|
||||
*
|
||||
* @param String $password
|
||||
* @param optional String $method
|
||||
* @access public
|
||||
*/
|
||||
function setPassword($password, $method = 'pbkdf2')
|
||||
{
|
||||
$key = '';
|
||||
|
||||
switch ($method) {
|
||||
default: // 'pbkdf2'
|
||||
list(, , $hash, $salt, $count) = func_get_args();
|
||||
if (!isset($hash)) {
|
||||
$hash = 'sha1';
|
||||
}
|
||||
// WPA and WPA2 use the SSID as the salt
|
||||
if (!isset($salt)) {
|
||||
$salt = 'phpseclib/salt';
|
||||
}
|
||||
// RFC2898#section-4.2 uses 1,000 iterations by default
|
||||
// WPA and WPA2 use 4,096.
|
||||
if (!isset($count)) {
|
||||
$count = 1000;
|
||||
}
|
||||
if (!isset($dkLen)) {
|
||||
$dkLen = 128;
|
||||
}
|
||||
|
||||
if (!class_exists('Crypt_Hash')) {
|
||||
require_once('Crypt/Hash.php');
|
||||
}
|
||||
|
||||
$i = 1;
|
||||
while (strlen($key) < $dkLen) {
|
||||
//$dk.= $this->_pbkdf($password, $salt, $count, $i++);
|
||||
$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;
|
||||
}
|
||||
}
|
||||
|
||||
$this->setKey(substr($key, 0, $dkLen));
|
||||
}
|
||||
|
||||
/**
|
||||
* Dummy function.
|
||||
*
|
||||
* Some protocols, such as WEP, prepend an "initialization vector" to the key, effectively creating a new key [1].
|
||||
* If you need to use an initialization vector in this manner, feel free to prepend it to the key, yourself, before
|
||||
* calling setKey().
|
||||
*
|
||||
* [1] WEP's initialization vectors (IV's) are used in a somewhat insecure way. Since, in that protocol,
|
||||
* the IV's are relatively easy to predict, an attack described by
|
||||
* {@link http://www.drizzle.com/~aboba/IEEE/rc4_ksaproc.pdf Scott Fluhrer, Itsik Mantin, and Adi Shamir}
|
||||
* can be used to quickly guess at the rest of the key. The following links elaborate:
|
||||
*
|
||||
* {@link http://www.rsa.com/rsalabs/node.asp?id=2009 http://www.rsa.com/rsalabs/node.asp?id=2009}
|
||||
* {@link http://en.wikipedia.org/wiki/Related_key_attack http://en.wikipedia.org/wiki/Related_key_attack}
|
||||
*
|
||||
* @param String $iv
|
||||
* @see Crypt_RC4::setKey()
|
||||
* @access public
|
||||
*/
|
||||
function setIV($iv)
|
||||
{
|
||||
}
|
||||
|
||||
/**
|
||||
* Encrypts a message.
|
||||
*
|
||||
* @see Crypt_RC4::_crypt()
|
||||
* @access public
|
||||
* @param String $plaintext
|
||||
*/
|
||||
function encrypt($plaintext)
|
||||
{
|
||||
return $this->_crypt($plaintext, CRYPT_RC4_ENCRYPT);
|
||||
}
|
||||
|
||||
/**
|
||||
* Decrypts a message.
|
||||
*
|
||||
* $this->decrypt($this->encrypt($plaintext)) == $this->encrypt($this->encrypt($plaintext)).
|
||||
* Atleast if the continuous buffer is disabled.
|
||||
*
|
||||
* @see Crypt_RC4::_crypt()
|
||||
* @access public
|
||||
* @param String $ciphertext
|
||||
*/
|
||||
function decrypt($ciphertext)
|
||||
{
|
||||
return $this->_crypt($ciphertext, CRYPT_RC4_DECRYPT);
|
||||
}
|
||||
|
||||
/**
|
||||
* Encrypts or decrypts a message.
|
||||
*
|
||||
* @see Crypt_RC4::encrypt()
|
||||
* @see Crypt_RC4::decrypt()
|
||||
* @access private
|
||||
* @param String $text
|
||||
* @param Integer $mode
|
||||
*/
|
||||
function _crypt($text, $mode)
|
||||
{
|
||||
if ( CRYPT_RC4_MODE == CRYPT_RC4_MODE_MCRYPT ) {
|
||||
$keyStream = $mode == CRYPT_RC4_ENCRYPT ? 'encryptStream' : 'decryptStream';
|
||||
|
||||
if (!$this->continuousBuffer) {
|
||||
mcrypt_generic_init($this->$keyStream, $this->key, '');
|
||||
}
|
||||
|
||||
return mcrypt_generic($this->$keyStream, $text);
|
||||
}
|
||||
|
||||
if ($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->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);
|
||||
}
|
||||
}
|
||||
|
||||
return $newText;
|
||||
}
|
||||
|
||||
/**
|
||||
* 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:
|
||||
*
|
||||
* <code>
|
||||
* echo $rc4->encrypt(substr($plaintext, 0, 8));
|
||||
* echo $rc4->encrypt(substr($plaintext, 8, 8));
|
||||
* </code>
|
||||
* <code>
|
||||
* echo $rc4->encrypt($plaintext);
|
||||
* </code>
|
||||
*
|
||||
* The solution is to enable the continuous buffer. Although this will resolve the above discrepancy, it creates
|
||||
* another, as demonstrated with the following:
|
||||
*
|
||||
* <code>
|
||||
* $rc4->encrypt(substr($plaintext, 0, 8));
|
||||
* echo $rc4->decrypt($des->encrypt(substr($plaintext, 8, 8)));
|
||||
* </code>
|
||||
* <code>
|
||||
* echo $rc4->decrypt($des->encrypt(substr($plaintext, 8, 8)));
|
||||
* </code>
|
||||
*
|
||||
* With the continuous buffer disabled, these would yield the same output. With it enabled, they yield different
|
||||
* outputs. The reason is due to the fact that the initialization vector's change after every encryption /
|
||||
* decryption round when the continuous buffer is enabled. When it's disabled, they remain constant.
|
||||
*
|
||||
* Put another way, when the continuous buffer is enabled, the state of the Crypt_DES() object changes after each
|
||||
* encryption / decryption round, whereas otherwise, it'd remain constant. For this reason, it's recommended that
|
||||
* continuous buffers not be used. They do offer better security and are, in fact, sometimes required (SSH uses them),
|
||||
* however, they are also less intuitive and more likely to cause you problems.
|
||||
*
|
||||
* @see Crypt_RC4::disableContinuousBuffer()
|
||||
* @access public
|
||||
*/
|
||||
function enableContinuousBuffer()
|
||||
{
|
||||
if ( CRYPT_RC4_MODE == CRYPT_RC4_MODE_MCRYPT ) {
|
||||
mcrypt_generic_init($this->encryptStream, $this->key, '');
|
||||
mcrypt_generic_init($this->decryptStream, $this->key, '');
|
||||
}
|
||||
|
||||
$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->encryptStream = $this->decryptStream = false;
|
||||
}
|
||||
|
||||
$this->continuousBuffer = false;
|
||||
}
|
||||
|
||||
/**
|
||||
* 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()
|
||||
{
|
||||
}
|
||||
}
|
||||
|
||||
// vim: ts=4:sw=4:et:
|
||||
// vim6: fdl=1:
|
||||
File diff suppressed because it is too large
Load Diff
|
|
@ -1,842 +0,0 @@
|
|||
<?php
|
||||
/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
|
||||
|
||||
/**
|
||||
* Pure-PHP implementation of Triple DES.
|
||||
*
|
||||
* Uses mcrypt, if available, and an internal implementation, otherwise. Operates in the EDE3 mode (encrypt-decrypt-encrypt).
|
||||
*
|
||||
* PHP versions 4 and 5
|
||||
*
|
||||
* Here's a short example of how to use this library:
|
||||
* <code>
|
||||
* <?php
|
||||
* include('Crypt/TripleDES.php');
|
||||
*
|
||||
* $des = new Crypt_TripleDES();
|
||||
*
|
||||
* $des->setKey('abcdefghijklmnopqrstuvwx');
|
||||
*
|
||||
* $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_TripleDES
|
||||
* @author Jim Wigginton <terrafrost@php.net>
|
||||
* @copyright MMVII Jim Wigginton
|
||||
* @license http://www.opensource.org/licenses/mit-license.html MIT License
|
||||
* @link http://phpseclib.sourceforge.net
|
||||
*/
|
||||
|
||||
/**
|
||||
* Include Crypt_DES
|
||||
*/
|
||||
if (!class_exists('Crypt_DES')) {
|
||||
require_once('DES.php');
|
||||
}
|
||||
|
||||
/**
|
||||
* Encrypt / decrypt using inner chaining
|
||||
*
|
||||
* Inner chaining is used by SSH-1 and is generally considered to be less secure then outer chaining (CRYPT_DES_MODE_CBC3).
|
||||
*/
|
||||
define('CRYPT_DES_MODE_3CBC', -2);
|
||||
|
||||
/**
|
||||
* Encrypt / decrypt using outer chaining
|
||||
*
|
||||
* Outer chaining is used by SSH-2 and when the mode is set to CRYPT_DES_MODE_CBC.
|
||||
*/
|
||||
define('CRYPT_DES_MODE_CBC3', CRYPT_DES_MODE_CBC);
|
||||
|
||||
/**
|
||||
* Pure-PHP implementation of Triple DES.
|
||||
*
|
||||
* @author Jim Wigginton <terrafrost@php.net>
|
||||
* @version 0.1.0
|
||||
* @access public
|
||||
* @package Crypt_TerraDES
|
||||
*/
|
||||
class Crypt_TripleDES extends Crypt_DES {
|
||||
/**
|
||||
* The Crypt_DES objects
|
||||
*
|
||||
* @var Array
|
||||
* @access private
|
||||
*/
|
||||
var $des;
|
||||
|
||||
/**
|
||||
* 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.
|
||||
*
|
||||
* @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') && in_array('tripledes', mcrypt_list_algorithms()):
|
||||
define('CRYPT_DES_MODE', CRYPT_DES_MODE_MCRYPT);
|
||||
break;
|
||||
default:
|
||||
define('CRYPT_DES_MODE', CRYPT_DES_MODE_INTERNAL);
|
||||
}
|
||||
}
|
||||
|
||||
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)
|
||||
);
|
||||
$this->paddable = true;
|
||||
|
||||
// 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';
|
||||
$this->ecb = mcrypt_module_open(MCRYPT_3DES, '', MCRYPT_MODE_ECB, '');
|
||||
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;
|
||||
}
|
||||
$this->enmcrypt = mcrypt_module_open(MCRYPT_3DES, '', $this->mode, '');
|
||||
$this->demcrypt = mcrypt_module_open(MCRYPT_3DES, '', $this->mode, '');
|
||||
|
||||
break;
|
||||
default:
|
||||
$this->des = array(
|
||||
new Crypt_DES(CRYPT_DES_MODE_ECB),
|
||||
new Crypt_DES(CRYPT_DES_MODE_ECB),
|
||||
new Crypt_DES(CRYPT_DES_MODE_ECB)
|
||||
);
|
||||
|
||||
// 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();
|
||||
$this->des[2]->disablePadding();
|
||||
|
||||
switch ($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;
|
||||
}
|
||||
if (function_exists('create_function') && is_callable('create_function')) {
|
||||
$this->inline_crypt_setup(3);
|
||||
$this->use_inline_crypt = true;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Sets the key.
|
||||
*
|
||||
* Keys can be of any length. Triple DES, itself, can use 128-bit (eg. strlen($key) == 16) or
|
||||
* 192-bit (eg. strlen($key) == 24) keys. This function pads and truncates $key as appropriate.
|
||||
*
|
||||
* 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.
|
||||
*
|
||||
* @access public
|
||||
* @param String $key
|
||||
*/
|
||||
function setKey($key)
|
||||
{
|
||||
$length = strlen($key);
|
||||
if ($length > 8) {
|
||||
$key = str_pad($key, 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));
|
||||
|
||||
// Merge the three DES-1-dim-key-arrays for 3DES-inline-en/decrypting
|
||||
if ($this->use_inline_crypt && $this->mode != CRYPT_DES_MODE_3CBC) {
|
||||
$this->keys = array(
|
||||
CRYPT_DES_ENCRYPT_1DIM => array_merge(
|
||||
$this->des[0]->keys[CRYPT_DES_ENCRYPT_1DIM],
|
||||
$this->des[1]->keys[CRYPT_DES_DECRYPT_1DIM],
|
||||
$this->des[2]->keys[CRYPT_DES_ENCRYPT_1DIM]
|
||||
),
|
||||
CRYPT_DES_DECRYPT_1DIM => array_merge(
|
||||
$this->des[2]->keys[CRYPT_DES_DECRYPT_1DIM],
|
||||
$this->des[1]->keys[CRYPT_DES_ENCRYPT_1DIM],
|
||||
$this->des[0]->keys[CRYPT_DES_DECRYPT_1DIM]
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
$this->enchanged = $this->dechanged = 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, $method
|
||||
*
|
||||
* @param String $password
|
||||
* @param optional String $method
|
||||
* @access public
|
||||
*/
|
||||
function setPassword($password, $method = 'pbkdf2')
|
||||
{
|
||||
$key = '';
|
||||
|
||||
switch ($method) {
|
||||
default: // 'pbkdf2'
|
||||
list(, , $hash, $salt, $count) = func_get_args();
|
||||
if (!isset($hash)) {
|
||||
$hash = 'sha1';
|
||||
}
|
||||
// WPA and WPA2 use the SSID as the salt
|
||||
if (!isset($salt)) {
|
||||
$salt = 'phpseclib';
|
||||
}
|
||||
// RFC2898#section-4.2 uses 1,000 iterations by default
|
||||
// WPA and WPA2 use 4,096.
|
||||
if (!isset($count)) {
|
||||
$count = 1000;
|
||||
}
|
||||
|
||||
if (!class_exists('Crypt_Hash')) {
|
||||
require_once('Crypt/Hash.php');
|
||||
}
|
||||
|
||||
$i = 1;
|
||||
while (strlen($key) < 24) { // $dkLen == 24
|
||||
$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;
|
||||
}
|
||||
}
|
||||
|
||||
$this->setKey($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);
|
||||
}
|
||||
$this->enchanged = $this->dechanged = true;
|
||||
}
|
||||
|
||||
/**
|
||||
* Encrypts a message.
|
||||
*
|
||||
* @access public
|
||||
* @param String $plaintext
|
||||
*/
|
||||
function encrypt($plaintext)
|
||||
{
|
||||
if ($this->paddable) {
|
||||
$plaintext = $this->_pad($plaintext);
|
||||
}
|
||||
|
||||
// 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 $ciphertext;
|
||||
}
|
||||
|
||||
if ( CRYPT_DES_MODE == CRYPT_DES_MODE_MCRYPT ) {
|
||||
if ($this->enchanged) {
|
||||
mcrypt_generic_init($this->enmcrypt, $this->key, $this->encryptIV);
|
||||
if ($this->mode == 'ncfb') {
|
||||
mcrypt_generic_init($this->ecb, $this->key, "\0\0\0\0\0\0\0\0");
|
||||
}
|
||||
$this->enchanged = false;
|
||||
}
|
||||
|
||||
if ($this->mode != 'ncfb' || !$this->continuousBuffer) {
|
||||
$ciphertext = mcrypt_generic($this->enmcrypt, $plaintext);
|
||||
} else {
|
||||
$iv = &$this->encryptIV;
|
||||
$pos = &$this->enbuffer['pos'];
|
||||
$len = strlen($plaintext);
|
||||
$ciphertext = '';
|
||||
$i = 0;
|
||||
if ($pos) {
|
||||
$orig_pos = $pos;
|
||||
$max = 8 - $pos;
|
||||
if ($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 >= 8) {
|
||||
if ($this->enbuffer['enmcrypt_init'] === false || $len > 950) {
|
||||
if ($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 % 8));
|
||||
$iv = substr($ciphertext, -8);
|
||||
$i = strlen($ciphertext);
|
||||
$len%= 8;
|
||||
} else {
|
||||
while ($len >= 8) {
|
||||
$iv = mcrypt_generic($this->ecb, $iv) ^ substr($plaintext, $i, 8);
|
||||
$ciphertext.= $iv;
|
||||
$len-= 8;
|
||||
$i+= 8;
|
||||
}
|
||||
}
|
||||
}
|
||||
if ($len) {
|
||||
$iv = mcrypt_generic($this->ecb, $iv);
|
||||
$block = $iv ^ substr($plaintext, $i);
|
||||
$iv = substr_replace($iv, $block, 0, $len);
|
||||
$ciphertext.= $block;
|
||||
$pos = $len;
|
||||
}
|
||||
return $ciphertext;
|
||||
}
|
||||
|
||||
if (!$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);
|
||||
}
|
||||
|
||||
if ($this->use_inline_crypt) {
|
||||
$inline = $this->inline_crypt;
|
||||
return $inline('encrypt', $this, $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['encrypted'])) {
|
||||
for ($i = 0; $i < strlen($plaintext); $i+=8) {
|
||||
$block = substr($plaintext, $i, 8);
|
||||
if (strlen($block) > strlen($buffer['encrypted'])) {
|
||||
$key = $this->_generate_xor($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['encrypted'].= $key;
|
||||
}
|
||||
$key = $this->_string_shift($buffer['encrypted']);
|
||||
$ciphertext.= $block ^ $key;
|
||||
}
|
||||
} else {
|
||||
for ($i = 0; $i < strlen($plaintext); $i+=8) {
|
||||
$block = substr($plaintext, $i, 8);
|
||||
$key = $this->_generate_xor($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) {
|
||||
$buffer['encrypted'] = substr($key, $start) . $buffer['encrypted'];
|
||||
}
|
||||
}
|
||||
break;
|
||||
case CRYPT_DES_MODE_CFB:
|
||||
if (strlen($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['xor'])) {
|
||||
for ($i = 0; $i < strlen($plaintext); $i+=8) {
|
||||
$block = substr($plaintext, $i, 8);
|
||||
if (strlen($block) > strlen($buffer['xor'])) {
|
||||
$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'].= $xor;
|
||||
}
|
||||
$key = $this->_string_shift($buffer['xor']);
|
||||
$ciphertext.= $block ^ $key;
|
||||
}
|
||||
} else {
|
||||
for ($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) {
|
||||
$buffer['xor'] = substr($key, $start) . $buffer['xor'];
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return $ciphertext;
|
||||
}
|
||||
|
||||
/**
|
||||
* Decrypts a message.
|
||||
*
|
||||
* @access public
|
||||
* @param String $ciphertext
|
||||
*/
|
||||
function decrypt($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->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) {
|
||||
mcrypt_generic_init($this->demcrypt, $this->key, $this->decryptIV);
|
||||
if ($this->mode == 'ncfb') {
|
||||
mcrypt_generic_init($this->ecb, $this->key, "\0\0\0\0\0\0\0\0");
|
||||
}
|
||||
$this->dechanged = false;
|
||||
}
|
||||
|
||||
if ($this->mode != 'ncfb' || !$this->continuousBuffer) {
|
||||
$plaintext = mdecrypt_generic($this->demcrypt, $ciphertext);
|
||||
} else {
|
||||
$iv = &$this->decryptIV;
|
||||
$pos = &$this->debuffer['pos'];
|
||||
$len = strlen($ciphertext);
|
||||
$plaintext = '';
|
||||
$i = 0;
|
||||
if ($pos) {
|
||||
$orig_pos = $pos;
|
||||
$max = 8 - $pos;
|
||||
if ($len >= $max) {
|
||||
$i = $max;
|
||||
$len-= $max;
|
||||
$pos = 0;
|
||||
} else {
|
||||
$i = $len;
|
||||
$pos+= $len;
|
||||
$len = 0;
|
||||
}
|
||||
$plaintext = substr($iv, $orig_pos) ^ $ciphertext;
|
||||
$iv = substr_replace($iv, substr($ciphertext, 0, $i), $orig_pos, $i);
|
||||
}
|
||||
if ($len >= 8) {
|
||||
$cb = substr($ciphertext, $i, $len - $len % 8);
|
||||
$plaintext.= mcrypt_generic($this->ecb, $iv . $cb) ^ $cb;
|
||||
$iv = substr($cb, -8);
|
||||
$len%= 8;
|
||||
}
|
||||
if ($len) {
|
||||
$iv = mcrypt_generic($this->ecb, $iv);
|
||||
$cb = substr($ciphertext, -$len);
|
||||
$plaintext.= $iv ^ $cb;
|
||||
$iv = substr_replace($iv, $cb, 0, $len);
|
||||
$pos = $len;
|
||||
}
|
||||
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) : $plaintext;
|
||||
}
|
||||
|
||||
if ($this->use_inline_crypt) {
|
||||
$inline = $this->inline_crypt;
|
||||
return $inline('decrypt', $this, $ciphertext);
|
||||
}
|
||||
|
||||
$des = $this->des;
|
||||
|
||||
$buffer = &$this->debuffer;
|
||||
$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['ciphertext'])) {
|
||||
for ($i = 0; $i < strlen($ciphertext); $i+=8) {
|
||||
$block = substr($ciphertext, $i, 8);
|
||||
if (strlen($block) > strlen($buffer['ciphertext'])) {
|
||||
$key = $this->_generate_xor($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['ciphertext'].= $key;
|
||||
}
|
||||
$key = $this->_string_shift($buffer['ciphertext']);
|
||||
$plaintext.= $block ^ $key;
|
||||
}
|
||||
} else {
|
||||
for ($i = 0; $i < strlen($ciphertext); $i+=8) {
|
||||
$block = substr($ciphertext, $i, 8);
|
||||
$key = $this->_generate_xor($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) {
|
||||
$buffer['ciphertext'] = substr($key, $start) . $buffer['ciphertext'];
|
||||
}
|
||||
}
|
||||
break;
|
||||
case CRYPT_DES_MODE_CFB:
|
||||
if (strlen($buffer['ciphertext'])) {
|
||||
$plaintext = $ciphertext ^ substr($this->decryptIV, strlen($buffer['ciphertext']));
|
||||
$buffer['ciphertext'].= substr($ciphertext, 0, strlen($plaintext));
|
||||
if (strlen($buffer['ciphertext']) != 8) {
|
||||
$block = $this->decryptIV;
|
||||
} else {
|
||||
$block = $buffer['ciphertext'];
|
||||
$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);
|
||||
} 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['xor'])) {
|
||||
for ($i = 0; $i < strlen($ciphertext); $i+=8) {
|
||||
$block = substr($ciphertext, $i, 8);
|
||||
if (strlen($block) > strlen($buffer['xor'])) {
|
||||
$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'].= $xor;
|
||||
}
|
||||
$key = $this->_string_shift($buffer['xor']);
|
||||
$plaintext.= $block ^ $key;
|
||||
}
|
||||
} else {
|
||||
for ($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) {
|
||||
$buffer['xor'] = substr($key, $start) . $buffer['xor'];
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
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:
|
||||
*
|
||||
* <code>
|
||||
* echo $des->encrypt(substr($plaintext, 0, 8));
|
||||
* echo $des->encrypt(substr($plaintext, 8, 8));
|
||||
* </code>
|
||||
* <code>
|
||||
* echo $des->encrypt($plaintext);
|
||||
* </code>
|
||||
*
|
||||
* The solution is to enable the continuous buffer. Although this will resolve the above discrepancy, it creates
|
||||
* another, as demonstrated with the following:
|
||||
*
|
||||
* <code>
|
||||
* $des->encrypt(substr($plaintext, 0, 8));
|
||||
* echo $des->decrypt($des->encrypt(substr($plaintext, 8, 8)));
|
||||
* </code>
|
||||
* <code>
|
||||
* echo $des->decrypt($des->encrypt(substr($plaintext, 8, 8)));
|
||||
* </code>
|
||||
*
|
||||
* 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_TripleDES::disableContinuousBuffer()
|
||||
* @access public
|
||||
*/
|
||||
function enableContinuousBuffer()
|
||||
{
|
||||
$this->continuousBuffer = true;
|
||||
if ($this->mode == CRYPT_DES_MODE_3CBC) {
|
||||
$this->des[0]->enableContinuousBuffer();
|
||||
$this->des[1]->enableContinuousBuffer();
|
||||
$this->des[2]->enableContinuousBuffer();
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Treat consecutive packets as if they are a discontinuous buffer.
|
||||
*
|
||||
* The default behavior.
|
||||
*
|
||||
* @see Crypt_TripleDES::enableContinuousBuffer()
|
||||
* @access public
|
||||
*/
|
||||
function disableContinuousBuffer()
|
||||
{
|
||||
$this->continuousBuffer = false;
|
||||
$this->encryptIV = $this->iv;
|
||||
$this->decryptIV = $this->iv;
|
||||
$this->enchanged = true;
|
||||
$this->dechanged = true;
|
||||
$this->enbuffer = array('encrypted' => '', 'xor' => '', 'pos' => 0, 'enmcrypt_init' => true);
|
||||
$this->debuffer = array('ciphertext' => '', 'xor' => '', 'pos' => 0, 'demcrypt_init' => true);
|
||||
|
||||
if ($this->mode == CRYPT_DES_MODE_3CBC) {
|
||||
$this->des[0]->disableContinuousBuffer();
|
||||
$this->des[1]->disableContinuousBuffer();
|
||||
$this->des[2]->disableContinuousBuffer();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// vim: ts=4:sw=4:et:
|
||||
// vim6: fdl=1:
|
||||
File diff suppressed because it is too large
Load Diff
188
plugins/OStatus/extlib/phpseclib/Crypt/AES.php
Normal file
188
plugins/OStatus/extlib/phpseclib/Crypt/AES.php
Normal file
|
|
@ -0,0 +1,188 @@
|
|||
<?php
|
||||
/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
|
||||
|
||||
/**
|
||||
* Pure-PHP implementation of AES.
|
||||
*
|
||||
* Uses mcrypt, if available/possible, and an internal implementation, otherwise.
|
||||
*
|
||||
* PHP versions 4 and 5
|
||||
*
|
||||
* If {@link Crypt_AES::setKeyLength() setKeyLength()} isn't called, it'll be calculated from
|
||||
* {@link Crypt_AES::setKey() setKey()}. ie. if the key is 128-bits, the key length will be 128-bits. If it's 136-bits
|
||||
* it'll be null-padded to 192-bits and 192 bits will be the key length until {@link Crypt_AES::setKey() setKey()}
|
||||
* is called, again, at which point, it'll be recalculated.
|
||||
*
|
||||
* Since Crypt_AES extends Crypt_Rijndael, some functions are available to be called that, in the context of AES, don't
|
||||
* make a whole lot of sense. {@link Crypt_AES::setBlockLength() setBlockLength()}, for instance. Calling that function,
|
||||
* however possible, won't do anything (AES has a fixed block length whereas Rijndael has a variable one).
|
||||
*
|
||||
* Here's a short example of how to use this library:
|
||||
* <code>
|
||||
* <?php
|
||||
* include('Crypt/AES.php');
|
||||
*
|
||||
* $aes = new Crypt_AES();
|
||||
*
|
||||
* $aes->setKey('abcdefghijklmnop');
|
||||
*
|
||||
* $size = 10 * 1024;
|
||||
* $plaintext = '';
|
||||
* for ($i = 0; $i < $size; $i++) {
|
||||
* $plaintext.= 'a';
|
||||
* }
|
||||
*
|
||||
* echo $aes->decrypt($aes->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_AES
|
||||
* @author Jim Wigginton <terrafrost@php.net>
|
||||
* @copyright MMVIII Jim Wigginton
|
||||
* @license http://www.opensource.org/licenses/mit-license.html MIT License
|
||||
* @link http://phpseclib.sourceforge.net
|
||||
*/
|
||||
|
||||
/**
|
||||
* Include Crypt_Rijndael
|
||||
*/
|
||||
if (!class_exists('Crypt_Rijndael')) {
|
||||
require_once('Rijndael.php');
|
||||
}
|
||||
|
||||
/**#@+
|
||||
* @access public
|
||||
* @see Crypt_AES::encrypt()
|
||||
* @see Crypt_AES::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_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', 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', 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', 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', CRYPT_MODE_OFB);
|
||||
/**#@-*/
|
||||
|
||||
/**#@+
|
||||
* @access private
|
||||
* @see Crypt_AES::Crypt_AES()
|
||||
*/
|
||||
/**
|
||||
* Toggles the internal implementation
|
||||
*/
|
||||
define('CRYPT_AES_MODE_INTERNAL', CRYPT_MODE_INTERNAL);
|
||||
/**
|
||||
* Toggles the mcrypt implementation
|
||||
*/
|
||||
define('CRYPT_AES_MODE_MCRYPT', CRYPT_MODE_MCRYPT);
|
||||
/**#@-*/
|
||||
|
||||
/**
|
||||
* Pure-PHP implementation of AES.
|
||||
*
|
||||
* @author Jim Wigginton <terrafrost@php.net>
|
||||
* @version 0.1.0
|
||||
* @access public
|
||||
* @package Crypt_AES
|
||||
*/
|
||||
class Crypt_AES extends Crypt_Rijndael {
|
||||
/**
|
||||
* The namespace used by the cipher for its constants.
|
||||
*
|
||||
* @see Crypt_Base::const_namespace
|
||||
* @var String
|
||||
* @access private
|
||||
*/
|
||||
var $const_namespace = 'AES';
|
||||
|
||||
/**
|
||||
* Default Constructor.
|
||||
*
|
||||
* 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 $mode
|
||||
* @access public
|
||||
*/
|
||||
function Crypt_AES($mode = CRYPT_AES_MODE_CBC)
|
||||
{
|
||||
parent::Crypt_Rijndael($mode);
|
||||
}
|
||||
|
||||
/**
|
||||
* Dummy function
|
||||
*
|
||||
* 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 $length
|
||||
*/
|
||||
function setBlockLength($length)
|
||||
{
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
// vim: ts=4:sw=4:et:
|
||||
// vim6: fdl=1:
|
||||
1989
plugins/OStatus/extlib/phpseclib/Crypt/Base.php
Normal file
1989
plugins/OStatus/extlib/phpseclib/Crypt/Base.php
Normal file
File diff suppressed because it is too large
Load Diff
678
plugins/OStatus/extlib/phpseclib/Crypt/Blowfish.php
Normal file
678
plugins/OStatus/extlib/phpseclib/Crypt/Blowfish.php
Normal file
|
|
@ -0,0 +1,678 @@
|
|||
<?php
|
||||
/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
|
||||
|
||||
/**
|
||||
* Pure-PHP implementation of Blowfish.
|
||||
*
|
||||
* 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/Blowfish_(cipher) Wikipedia description of Blowfish}
|
||||
*
|
||||
* Here's a short example of how to use this library:
|
||||
* <code>
|
||||
* <?php
|
||||
* include('Crypt/Blowfish.php');
|
||||
*
|
||||
* $blowfish = new Crypt_Blowfish();
|
||||
*
|
||||
* $blowfish->setKey('12345678901234567890123456789012');
|
||||
*
|
||||
* $plaintext = str_repeat('a', 1024);
|
||||
*
|
||||
* echo $blowfish->decrypt($blowfish->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_Blowfish
|
||||
* @author Jim Wigginton <terrafrost@php.net>
|
||||
* @author Hans-Juergen Petrich <petrich@tronic-media.com>
|
||||
* @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')) {
|
||||
require_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.
|
||||
*
|
||||
* @author Jim Wigginton <terrafrost@php.net>
|
||||
* @author Hans-Juergen Petrich <petrich@tronic-media.com>
|
||||
* @version 1.0
|
||||
* @access public
|
||||
* @package Crypt_Blowfish
|
||||
*/
|
||||
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];
|
||||
}
|
||||
}
|
||||
|
||||
// vim: ts=4:sw=4:et:
|
||||
// vim6: fdl=1:
|
||||
1536
plugins/OStatus/extlib/phpseclib/Crypt/DES.php
Normal file
1536
plugins/OStatus/extlib/phpseclib/Crypt/DES.php
Normal file
File diff suppressed because it is too large
Load Diff
656
plugins/OStatus/extlib/phpseclib/Crypt/RC2.php
Executable file
656
plugins/OStatus/extlib/phpseclib/Crypt/RC2.php
Executable file
|
|
@ -0,0 +1,656 @@
|
|||
<?php
|
||||
/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
|
||||
|
||||
/**
|
||||
* Pure-PHP implementation of RC2.
|
||||
*
|
||||
* Uses mcrypt, if available, and an internal implementation, otherwise.
|
||||
*
|
||||
* PHP versions 4 and 5
|
||||
*
|
||||
* Useful resources are as follows:
|
||||
*
|
||||
* - {@link http://tools.ietf.org/html/rfc2268}
|
||||
*
|
||||
* Here's a short example of how to use this library:
|
||||
* <code>
|
||||
* <?php
|
||||
* include('Crypt/RC2.php');
|
||||
*
|
||||
* $rc2 = new Crypt_RC2();
|
||||
*
|
||||
* $rc2->setKey('abcdefgh');
|
||||
*
|
||||
* $plaintext = str_repeat('a', 1024);
|
||||
*
|
||||
* echo $rc2->decrypt($rc2->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_RC2
|
||||
* @author Patrick Monnerat <pm@datasphere.ch>
|
||||
* @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')) {
|
||||
require_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.
|
||||
*
|
||||
* @version 0.1.1
|
||||
* @access public
|
||||
* @package Crypt_RC2
|
||||
*/
|
||||
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];
|
||||
}
|
||||
}
|
||||
|
||||
// vim: ts=4:sw=4:et:
|
||||
// vim6: fdl=1:
|
||||
337
plugins/OStatus/extlib/phpseclib/Crypt/RC4.php
Normal file
337
plugins/OStatus/extlib/phpseclib/Crypt/RC4.php
Normal file
|
|
@ -0,0 +1,337 @@
|
|||
<?php
|
||||
/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
|
||||
|
||||
/**
|
||||
* Pure-PHP implementation of RC4.
|
||||
*
|
||||
* Uses mcrypt, if available, and an internal implementation, otherwise.
|
||||
*
|
||||
* PHP versions 4 and 5
|
||||
*
|
||||
* Useful resources are as follows:
|
||||
*
|
||||
* - {@link http://www.mozilla.org/projects/security/pki/nss/draft-kaukonen-cipher-arcfour-03.txt ARCFOUR Algorithm}
|
||||
* - {@link http://en.wikipedia.org/wiki/RC4 - Wikipedia: RC4}
|
||||
*
|
||||
* RC4 is also known as ARCFOUR or ARC4. The reason is elaborated upon at Wikipedia. This class is named RC4 and not
|
||||
* ARCFOUR or ARC4 because RC4 is how it is referred to in the SSH1 specification.
|
||||
*
|
||||
* Here's a short example of how to use this library:
|
||||
* <code>
|
||||
* <?php
|
||||
* include('Crypt/RC4.php');
|
||||
*
|
||||
* $rc4 = new Crypt_RC4();
|
||||
*
|
||||
* $rc4->setKey('abcdefgh');
|
||||
*
|
||||
* $size = 10 * 1024;
|
||||
* $plaintext = '';
|
||||
* for ($i = 0; $i < $size; $i++) {
|
||||
* $plaintext.= 'a';
|
||||
* }
|
||||
*
|
||||
* echo $rc4->decrypt($rc4->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_RC4
|
||||
* @author Jim Wigginton <terrafrost@php.net>
|
||||
* @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')) {
|
||||
require_once('Base.php');
|
||||
}
|
||||
|
||||
/**#@+
|
||||
* @access private
|
||||
* @see Crypt_RC4::Crypt_RC4()
|
||||
*/
|
||||
/**
|
||||
* Toggles the internal implementation
|
||||
*/
|
||||
define('CRYPT_RC4_MODE_INTERNAL', CRYPT_MODE_INTERNAL);
|
||||
/**
|
||||
* Toggles the mcrypt implementation
|
||||
*/
|
||||
define('CRYPT_RC4_MODE_MCRYPT', CRYPT_MODE_MCRYPT);
|
||||
/**#@-*/
|
||||
|
||||
/**#@+
|
||||
* @access private
|
||||
* @see Crypt_RC4::_crypt()
|
||||
*/
|
||||
define('CRYPT_RC4_ENCRYPT', 0);
|
||||
define('CRYPT_RC4_DECRYPT', 1);
|
||||
/**#@-*/
|
||||
|
||||
/**
|
||||
* Pure-PHP implementation of RC4.
|
||||
*
|
||||
* @author Jim Wigginton <terrafrost@php.net>
|
||||
* @version 0.1.0
|
||||
* @access public
|
||||
* @package 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
|
||||
*
|
||||
* @see Crypt_RC4::setKey()
|
||||
* @var String
|
||||
* @access private
|
||||
*/
|
||||
var $key = "\0";
|
||||
|
||||
/**
|
||||
* The Key Stream for decryption and encryption
|
||||
*
|
||||
* @see Crypt_RC4::setKey()
|
||||
* @var Array
|
||||
* @access private
|
||||
*/
|
||||
var $stream;
|
||||
|
||||
/**
|
||||
* Default Constructor.
|
||||
*
|
||||
* Determines whether or not the mcrypt extension should be used.
|
||||
*
|
||||
* @see Crypt_Base::Crypt_Base()
|
||||
* @return Crypt_RC4
|
||||
* @access public
|
||||
*/
|
||||
function Crypt_RC4()
|
||||
{
|
||||
parent::Crypt_Base(CRYPT_MODE_STREAM);
|
||||
}
|
||||
|
||||
/**
|
||||
* Dummy function.
|
||||
*
|
||||
* Some protocols, such as WEP, prepend an "initialization vector" to the key, effectively creating a new key [1].
|
||||
* If you need to use an initialization vector in this manner, feel free to prepend it to the key, yourself, before
|
||||
* calling setKey().
|
||||
*
|
||||
* [1] WEP's initialization vectors (IV's) are used in a somewhat insecure way. Since, in that protocol,
|
||||
* the IV's are relatively easy to predict, an attack described by
|
||||
* {@link http://www.drizzle.com/~aboba/IEEE/rc4_ksaproc.pdf Scott Fluhrer, Itsik Mantin, and Adi Shamir}
|
||||
* can be used to quickly guess at the rest of the key. The following links elaborate:
|
||||
*
|
||||
* {@link http://www.rsa.com/rsalabs/node.asp?id=2009 http://www.rsa.com/rsalabs/node.asp?id=2009}
|
||||
* {@link http://en.wikipedia.org/wiki/Related_key_attack http://en.wikipedia.org/wiki/Related_key_attack}
|
||||
*
|
||||
* @param String $iv
|
||||
* @see Crypt_RC4::setKey()
|
||||
* @access public
|
||||
*/
|
||||
function setIV($iv)
|
||||
{
|
||||
}
|
||||
|
||||
/**
|
||||
* 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
|
||||
* @see Crypt_Base::setKey()
|
||||
* @param String $key
|
||||
*/
|
||||
function setKey($key)
|
||||
{
|
||||
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);
|
||||
}
|
||||
|
||||
/**
|
||||
* Decrypts a message.
|
||||
*
|
||||
* $this->decrypt($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.
|
||||
*
|
||||
* @see Crypt_RC4::encrypt()
|
||||
* @see Crypt_RC4::decrypt()
|
||||
* @access private
|
||||
* @param String $text
|
||||
* @param Integer $mode
|
||||
* @return String $text
|
||||
*/
|
||||
function _crypt($text, $mode)
|
||||
{
|
||||
if ($this->changed) {
|
||||
$this->_setup();
|
||||
$this->changed = false;
|
||||
}
|
||||
|
||||
$stream = &$this->stream[$mode];
|
||||
if ($this->continuousBuffer) {
|
||||
$i = &$stream[0];
|
||||
$j = &$stream[1];
|
||||
$keyStream = &$stream[2];
|
||||
} else {
|
||||
$i = $stream[0];
|
||||
$j = $stream[1];
|
||||
$keyStream = $stream[2];
|
||||
}
|
||||
|
||||
$len = strlen($text);
|
||||
for ($k = 0; $k < $len; ++$k) {
|
||||
$i = ($i + 1) & 255;
|
||||
$ksi = $keyStream[$i];
|
||||
$j = ($j + $ksi) & 255;
|
||||
$ksj = $keyStream[$j];
|
||||
|
||||
$keyStream[$i] = $ksj;
|
||||
$keyStream[$j] = $ksi;
|
||||
$text[$k] = chr(ord($text[$k]) ^ $keyStream[($ksj + $ksi) & 255]);
|
||||
}
|
||||
|
||||
return $text;
|
||||
}
|
||||
}
|
||||
|
||||
// vim: ts=4:sw=4:et:
|
||||
// vim6: fdl=1:
|
||||
|
|
@ -173,7 +173,6 @@ define('CRYPT_RSA_MODE_OPENSSL', 2);
|
|||
*/
|
||||
define('CRYPT_RSA_OPENSSL_CONFIG', dirname(__FILE__) . '/../openssl.cnf');
|
||||
|
||||
|
||||
/**#@+
|
||||
* @access public
|
||||
* @see Crypt_RSA::createKey()
|
||||
|
|
@ -468,12 +467,44 @@ class Crypt_RSA {
|
|||
$this->configFile = CRYPT_RSA_OPENSSL_CONFIG;
|
||||
|
||||
if ( !defined('CRYPT_RSA_MODE') ) {
|
||||
switch (true) {
|
||||
// Math/BigInteger's openssl requirements are a little less stringent than Crypt/RSA's. in particular,
|
||||
// Math/BigInteger doesn't require an openssl.cfg file whereas Crypt/RSA does. so if Math/BigInteger
|
||||
// can't use OpenSSL it can be pretty trivially assumed, then, that Crypt/RSA can't either.
|
||||
if ( defined('MATH_BIGINTEGER_OPENSSL_DISABLE') ) {
|
||||
define('CRYPT_RSA_MODE', CRYPT_RSA_MODE_INTERNAL);
|
||||
}
|
||||
|
||||
switch ( !defined('CRYPT_RSA_MODE') ) { // ie. only run this if the above didn't set CRYPT_RSA_MODE already
|
||||
case extension_loaded('openssl') && version_compare(PHP_VERSION, '4.2.0', '>=') && file_exists($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);
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -642,12 +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]);
|
||||
|
||||
|
|
@ -1311,9 +1342,6 @@ class Crypt_RSA {
|
|||
break;
|
||||
case 'D':
|
||||
$this->current = &$this->components['privateExponent'];
|
||||
break;
|
||||
default:
|
||||
unset($this->current);
|
||||
}
|
||||
$this->current = '';
|
||||
}
|
||||
|
|
@ -1334,6 +1362,7 @@ class Crypt_RSA {
|
|||
return;
|
||||
}
|
||||
$this->current = new Math_BigInteger(base64_decode($this->current), 256);
|
||||
unset($this->current);
|
||||
}
|
||||
|
||||
/**
|
||||
1374
plugins/OStatus/extlib/phpseclib/Crypt/Rijndael.php
Normal file
1374
plugins/OStatus/extlib/phpseclib/Crypt/Rijndael.php
Normal file
File diff suppressed because it is too large
Load Diff
422
plugins/OStatus/extlib/phpseclib/Crypt/TripleDES.php
Normal file
422
plugins/OStatus/extlib/phpseclib/Crypt/TripleDES.php
Normal file
|
|
@ -0,0 +1,422 @@
|
|||
<?php
|
||||
/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
|
||||
|
||||
/**
|
||||
* Pure-PHP implementation of Triple DES.
|
||||
*
|
||||
* Uses mcrypt, if available, and an internal implementation, otherwise. Operates in the EDE3 mode (encrypt-decrypt-encrypt).
|
||||
*
|
||||
* PHP versions 4 and 5
|
||||
*
|
||||
* Here's a short example of how to use this library:
|
||||
* <code>
|
||||
* <?php
|
||||
* include('Crypt/TripleDES.php');
|
||||
*
|
||||
* $des = new Crypt_TripleDES();
|
||||
*
|
||||
* $des->setKey('abcdefghijklmnopqrstuvwx');
|
||||
*
|
||||
* $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_TripleDES
|
||||
* @author Jim Wigginton <terrafrost@php.net>
|
||||
* @copyright MMVII Jim Wigginton
|
||||
* @license http://www.opensource.org/licenses/mit-license.html MIT License
|
||||
* @link http://phpseclib.sourceforge.net
|
||||
*/
|
||||
|
||||
/**
|
||||
* Include Crypt_DES
|
||||
*/
|
||||
if (!class_exists('Crypt_DES')) {
|
||||
require_once('DES.php');
|
||||
}
|
||||
|
||||
/**
|
||||
* Encrypt / decrypt using inner chaining
|
||||
*
|
||||
* Inner chaining is used by SSH-1 and is generally considered to be less secure then outer chaining (CRYPT_DES_MODE_CBC3).
|
||||
*/
|
||||
define('CRYPT_DES_MODE_3CBC', -2);
|
||||
|
||||
/**
|
||||
* Encrypt / decrypt using outer chaining
|
||||
*
|
||||
* Outer chaining is used by SSH-2 and when the mode is set to CRYPT_DES_MODE_CBC.
|
||||
*/
|
||||
define('CRYPT_DES_MODE_CBC3', CRYPT_DES_MODE_CBC);
|
||||
|
||||
/**
|
||||
* Pure-PHP implementation of Triple DES.
|
||||
*
|
||||
* @author Jim Wigginton <terrafrost@php.net>
|
||||
* @version 0.1.0
|
||||
* @access public
|
||||
* @package Crypt_TripleDES
|
||||
*/
|
||||
class Crypt_TripleDES extends Crypt_DES {
|
||||
/**
|
||||
* The default password key_size used by setPassword()
|
||||
*
|
||||
* @see Crypt_DES::password_key_size
|
||||
* @see Crypt_Base::password_key_size
|
||||
* @see Crypt_Base::setPassword()
|
||||
* @var Integer
|
||||
* @access private
|
||||
*/
|
||||
var $password_key_size = 24;
|
||||
|
||||
/**
|
||||
* 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
|
||||
*
|
||||
* @var Boolean
|
||||
* @access private
|
||||
*/
|
||||
var $mode_3cbc;
|
||||
|
||||
/**
|
||||
* The Crypt_DES objects
|
||||
*
|
||||
* Used only if $mode_3cbc === true
|
||||
*
|
||||
* @var Array
|
||||
* @access private
|
||||
*/
|
||||
var $des;
|
||||
|
||||
/**
|
||||
* Default Constructor.
|
||||
*
|
||||
* 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 $mode
|
||||
* @access public
|
||||
*/
|
||||
function Crypt_TripleDES($mode = CRYPT_DES_MODE_CBC)
|
||||
{
|
||||
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;
|
||||
|
||||
// This three $des'es will do the 3CBC work (if $key > 64bits)
|
||||
$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();
|
||||
$this->des[2]->disablePadding();
|
||||
break;
|
||||
// If not 3CBC, we init as usual
|
||||
default:
|
||||
parent::Crypt_DES($mode);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* 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);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Sets the key.
|
||||
*
|
||||
* Keys can be of any length. Triple DES, itself, can use 128-bit (eg. strlen($key) == 16) or
|
||||
* 192-bit (eg. strlen($key) == 24) keys. This function pads and truncates $key as appropriate.
|
||||
*
|
||||
* 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 null bytes.
|
||||
*
|
||||
* @access public
|
||||
* @see Crypt_DES::setKey()
|
||||
* @see Crypt_Base::setKey()
|
||||
* @param String $key
|
||||
*/
|
||||
function setKey($key)
|
||||
{
|
||||
$length = strlen($key);
|
||||
if ($length > 8) {
|
||||
$key = str_pad(substr($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));
|
||||
}
|
||||
parent::setKey($key);
|
||||
|
||||
// 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));
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Encrypts a message.
|
||||
*
|
||||
* @see Crypt_Base::encrypt()
|
||||
* @access public
|
||||
* @param String $plaintext
|
||||
* @return String $cipertext
|
||||
*/
|
||||
function encrypt($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 ($this->mode_3cbc && strlen($this->key) > 8) {
|
||||
return $this->des[2]->encrypt(
|
||||
$this->des[1]->decrypt(
|
||||
$this->des[0]->encrypt($this->_pad($plaintext))));
|
||||
}
|
||||
|
||||
return parent::encrypt($plaintext);
|
||||
}
|
||||
|
||||
/**
|
||||
* Decrypts a message.
|
||||
*
|
||||
* @see Crypt_Base::decrypt()
|
||||
* @access public
|
||||
* @param String $ciphertext
|
||||
* @return String $plaintext
|
||||
*/
|
||||
function decrypt($ciphertext)
|
||||
{
|
||||
if ($this->mode_3cbc && strlen($this->key) > 8) {
|
||||
return $this->_unpad($this->des[0]->decrypt(
|
||||
$this->des[1]->encrypt(
|
||||
$this->des[2]->decrypt(str_pad($ciphertext, (strlen($ciphertext) + 7) & 0xFFFFFFF8, "\0")))));
|
||||
}
|
||||
|
||||
return parent::decrypt($ciphertext);
|
||||
}
|
||||
|
||||
/**
|
||||
* 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:
|
||||
*
|
||||
* <code>
|
||||
* echo $des->encrypt(substr($plaintext, 0, 8));
|
||||
* echo $des->encrypt(substr($plaintext, 8, 8));
|
||||
* </code>
|
||||
* <code>
|
||||
* echo $des->encrypt($plaintext);
|
||||
* </code>
|
||||
*
|
||||
* The solution is to enable the continuous buffer. Although this will resolve the above discrepancy, it creates
|
||||
* another, as demonstrated with the following:
|
||||
*
|
||||
* <code>
|
||||
* $des->encrypt(substr($plaintext, 0, 8));
|
||||
* echo $des->decrypt($des->encrypt(substr($plaintext, 8, 8)));
|
||||
* </code>
|
||||
* <code>
|
||||
* echo $des->decrypt($des->encrypt(substr($plaintext, 8, 8)));
|
||||
* </code>
|
||||
*
|
||||
* With the continuous buffer disabled, these would yield the same output. With it enabled, they yield different
|
||||
* outputs. The reason is due to the fact that the initialization vector's change after every encryption /
|
||||
* decryption round when the continuous buffer is enabled. When it's disabled, they remain constant.
|
||||
*
|
||||
* Put another way, when the continuous buffer is enabled, the state of the Crypt_DES() object changes after each
|
||||
* encryption / decryption round, whereas otherwise, it'd remain constant. For this reason, it's recommended that
|
||||
* continuous buffers not be used. They do offer better security and are, in fact, sometimes required (SSH uses them),
|
||||
* however, they are also less intuitive and more likely to cause you problems.
|
||||
*
|
||||
* @see Crypt_Base::enableContinuousBuffer()
|
||||
* @see Crypt_TripleDES::disableContinuousBuffer()
|
||||
* @access public
|
||||
*/
|
||||
function enableContinuousBuffer()
|
||||
{
|
||||
parent::enableContinuousBuffer();
|
||||
if ($this->mode_3cbc) {
|
||||
$this->des[0]->enableContinuousBuffer();
|
||||
$this->des[1]->enableContinuousBuffer();
|
||||
$this->des[2]->enableContinuousBuffer();
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Treat consecutive packets as if they are a discontinuous buffer.
|
||||
*
|
||||
* The default behavior.
|
||||
*
|
||||
* @see Crypt_Base::disableContinuousBuffer()
|
||||
* @see Crypt_TripleDES::enableContinuousBuffer()
|
||||
* @access public
|
||||
*/
|
||||
function disableContinuousBuffer()
|
||||
{
|
||||
parent::disableContinuousBuffer();
|
||||
if ($this->mode_3cbc) {
|
||||
$this->des[0]->disableContinuousBuffer();
|
||||
$this->des[1]->disableContinuousBuffer();
|
||||
$this->des[2]->disableContinuousBuffer();
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Creates the key schedule
|
||||
*
|
||||
* @see Crypt_DES::_setupKey()
|
||||
* @see Crypt_Base::_setupKey()
|
||||
* @access private
|
||||
*/
|
||||
function _setupKey()
|
||||
{
|
||||
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;
|
||||
|
||||
// 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;
|
||||
}
|
||||
}
|
||||
// setup our key
|
||||
parent::_setupKey();
|
||||
}
|
||||
}
|
||||
|
||||
// vim: ts=4:sw=4:et:
|
||||
// vim6: fdl=1:
|
||||
924
plugins/OStatus/extlib/phpseclib/Crypt/Twofish.php
Normal file
924
plugins/OStatus/extlib/phpseclib/Crypt/Twofish.php
Normal file
|
|
@ -0,0 +1,924 @@
|
|||
<?php
|
||||
/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
|
||||
|
||||
/**
|
||||
* Pure-PHP implementation of Twofish.
|
||||
*
|
||||
* 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/Twofish Wikipedia description of Twofish}
|
||||
*
|
||||
* Here's a short example of how to use this library:
|
||||
* <code>
|
||||
* <?php
|
||||
* include('Crypt/Twofish.php');
|
||||
*
|
||||
* $twofish = new Crypt_Twofish();
|
||||
*
|
||||
* $twofish->setKey('12345678901234567890123456789012');
|
||||
*
|
||||
* $plaintext = str_repeat('a', 1024);
|
||||
*
|
||||
* echo $twofish->decrypt($twofish->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_Twofish
|
||||
* @author Jim Wigginton <terrafrost@php.net>
|
||||
* @author Hans-Juergen Petrich <petrich@tronic-media.com>
|
||||
* @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')) {
|
||||
require_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.
|
||||
*
|
||||
* @author Jim Wigginton <terrafrost@php.net>
|
||||
* @author Hans-Juergen Petrich <petrich@tronic-media.com>
|
||||
* @version 1.0
|
||||
* @access public
|
||||
* @package Crypt_Twofish
|
||||
*/
|
||||
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];
|
||||
}
|
||||
}
|
||||
|
||||
// vim: ts=4:sw=4:et:
|
||||
// vim6: fdl=1:
|
||||
|
|
@ -272,7 +272,31 @@ 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')) {
|
||||
|
|
@ -438,7 +462,6 @@ class Math_BigInteger {
|
|||
}
|
||||
|
||||
$x = str_pad($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, MATH_BIGINTEGER_MAX10_LEN)), 256));
|
||||
|
|
@ -3028,6 +3051,37 @@ class Math_BigInteger {
|
|||
{
|
||||
}
|
||||
|
||||
/**
|
||||
* 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);
|
||||
}
|
||||
|
||||
/**
|
||||
* Generate a random number
|
||||
*
|
||||
|
|
@ -3057,46 +3111,45 @@ class Math_BigInteger {
|
|||
$min = $temp;
|
||||
}
|
||||
|
||||
$max = $max->subtract($min);
|
||||
$max = ltrim($max->toBytes(), chr(0));
|
||||
$size = strlen($max) - 1;
|
||||
|
||||
$crypt_random = function_exists('crypt_random_string') || (!class_exists('Crypt_Random') && function_exists('crypt_random_string'));
|
||||
if ($crypt_random) {
|
||||
$random = crypt_random_string($size);
|
||||
} else {
|
||||
$random = '';
|
||||
|
||||
if ($size & 1) {
|
||||
$random.= chr(mt_rand(0, 255));
|
||||
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', mt_rand(0, 0xFFFF));
|
||||
}
|
||||
}
|
||||
$max = $max->subtract($min->subtract($one));
|
||||
$size = strlen(ltrim($max->toBytes(), chr(0)));
|
||||
|
||||
$fragment = new Math_BigInteger($random, 256);
|
||||
$leading = $fragment->compare(new Math_BigInteger(substr($max, 1), 256)) > 0 ?
|
||||
ord($max[0]) - 1 : ord($max[0]);
|
||||
/*
|
||||
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 $random = 145
|
||||
would produce 5 whereas the only value of random that could produce 139 would be 139. ie.
|
||||
not all numbers would be equally likely. some would be more likely than others.
|
||||
|
||||
if (!$crypt_random) {
|
||||
$msb = chr(mt_rand(0, $leading));
|
||||
} else {
|
||||
$cutoff = floor(0xFF / $leading) * $leading;
|
||||
while (true) {
|
||||
$msb = ord(crypt_random_string(1));
|
||||
if ($msb <= $cutoff) {
|
||||
$msb%= $leading;
|
||||
break;
|
||||
}
|
||||
}
|
||||
$msb = chr($msb);
|
||||
}
|
||||
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.
|
||||
|
||||
$random = new Math_BigInteger($msb . $random, 256);
|
||||
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));
|
||||
}
|
||||
|
|
@ -3147,6 +3200,7 @@ class Math_BigInteger {
|
|||
|
||||
// gmp_nextprime() requires PHP 5 >= 5.2.0 per <http://php.net/gmp-nextprime>.
|
||||
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) {
|
||||
6
plugins/OStatus/extlib/phpseclib/openssl.cnf
Normal file
6
plugins/OStatus/extlib/phpseclib/openssl.cnf
Normal file
|
|
@ -0,0 +1,6 @@
|
|||
# minimalist openssl.cnf file for use with phpseclib
|
||||
|
||||
HOME = .
|
||||
RANDFILE = $ENV::HOME/.rnd
|
||||
|
||||
[ v3_ca ]
|
||||
Loading…
Reference in New Issue
Block a user