Yu1709$!%yuyu!$%wutu!5=126+

                
____  ___       .__                 
\   \/  /  _____|  |   ______  _  __
 \     /  /  ___/  |  /  _ \ \/ \/ /
 /     \  \___ \|  |_(  <_> )     / 
/___/\  \/____  >____/\____/ \/\_/  
      \_/     \/    @ligmakokz

Editing: RC2.php

<?php

/**
 * 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 dirname(__FILE__).'/Base.php';
}

/**#@+
 * @access public
 * @see    Crypt_RC2::encrypt()
 * @see    Crypt_RC2::decrypt()
 */
/**
 * Encrypt / decrypt using the Counter mode.
 *
 * Set to -1 since that's what Crypt/Random.php uses to index the CTR mode.
 *
 * @link http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation#Counter_.28CTR.29
 */
define('CRYPT_RC2_MODE_CTR', CRYPT_MODE_CTR);
/**
 * Encrypt / decrypt using the Electronic Code Book mode.
 *
 * @link http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation#Electronic_codebook_.28ECB.29
 */
define('CRYPT_RC2_MODE_ECB', CRYPT_MODE_ECB);
/**
 * Encrypt / decrypt using the Code Book Chaining mode.
 *
 * @link http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation#Cipher-block_chaining_.28CBC.29
 */
define('CRYPT_RC2_MODE_CBC', CRYPT_MODE_CBC);
/**
 * Encrypt / decrypt using the Cipher Feedback mode.
 *
 * @link http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation#Cipher_feedback_.28CFB.29
 */
define('CRYPT_RC2_MODE_CFB', CRYPT_MODE_CFB);
/**
 * Encrypt / decrypt using the Cipher Feedback mode.
 *
 * @link http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation#Output_feedback_.28OFB.29
 */
define('CRYPT_RC2_MODE_OFB', CRYPT_MODE_OFB);
/**#@-*/

/**#@+
 * @access private
 * @see    Crypt_RC2::Crypt_RC2()
 */
/**
 * Toggles the internal implementation
 */
define('CRYPT_RC2_MODE_INTERNAL', CRYPT_MODE_INTERNAL);
/**
 * Toggles the mcrypt implementation
 */
define('CRYPT_RC2_MODE_MCRYPT', CRYPT_MODE_MCRYPT);
/**#@-*/

/**
 * Pure-PHP implementation of RC2.
 *
 * @package Crypt_RC2
 * @access  public
 */
class Crypt_RC2 extends Crypt_Base
{
    /**
     * Block Length of the cipher
     *
     * @see    Crypt_Base::block_size
     * @var Integer
     * @access private
     */
    public $block_size = 8;

/**
     * The Key
     *
     * @see    Crypt_Base::key
     * @see    setKey()
     * @var String
     * @access private
     */
    public $key = "\0";

/**
     * The default password key_size used by setPassword()
     *
     * @see    Crypt_Base::password_key_size
     * @see    Crypt_Base::setPassword()
     * @var Integer
     * @access private
     */
    public $password_key_size = 16; // = 128 bits

/**
     * The namespace used by the cipher for its constants.
     *
     * @see    Crypt_Base::const_namespace
     * @var String
     * @access private
     */
    public $const_namespace = 'RC2';

/**
     * The mcrypt specific name of the cipher
     *
     * @see    Crypt_Base::cipher_name_mcrypt
     * @var String
     * @access private
     */
    public $cipher_name_mcrypt = 'rc2';

/**
     * Optimizing value while CFB-encrypting
     *
     * @see    Crypt_Base::cfb_init_len
     * @var Integer
     * @access private
     */
    public $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.
     */
    public $default_key_length = 1024;

/**
     * The Key Schedule
     *
     * @see    Crypt_RC2::_setupKey()
     * @var Array
     * @access private
     */
    public $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 explicitly set, CRYPT_RC2_MODE_CBC will be used.
     *
     * @see    Crypt_Base::Crypt_Base()
     *
     * @param optional Integer $mode
     *
     * @access public
     */
    public function __construct($mode = CRYPT_RC2_MODE_CBC)
    {
        parent::__construct($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 $length in bits
     */
    public function setKeyLength($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 $t1  optional          Effective key length in bits.
     */
    public function setKey($key, $t1 = 0)
    {
        if ($t1 <= 0) {
            $t1 = $this->default_key_length;
        } elseif ($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 $in
     *
     * @return String
     */
    public function _encryptBlock($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 $in
     *
     * @return String
     */
    public function _decryptBlock($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 === 0) {
                    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
     */
    public 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
     */
    public 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 === 0) {
                        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];
    }
}

Name	Type	Actions
.htaccess	File
AES.php	File
Base.php	File
Blowfish.php	File
DES.php	File
Hash.php	File
RC2.php	File
RC4.php	File
RSA.php	File
Random.php	File
Rijndael.php	File
TripleDES.php	File
Twofish.php	File
index.php	File