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 version 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 'vendor/autoload.php';
 *
 *    $rc2 = new \phpseclib3\Crypt\RC2('ctr');
 *
 *    $rc2->setKey('abcdefgh');
 *
 *    $plaintext = str_repeat('a', 1024);
 *
 *    echo $rc2->decrypt($rc2->encrypt($plaintext));
 * ?>
 * </code>
 *
 * @category Crypt
 * @package  RC2
 * @author   Patrick Monnerat <pm@datasphere.ch>
 * @license  http://www.opensource.org/licenses/mit-license.html  MIT License
 * @link     http://phpseclib.sourceforge.net
 */

namespace phpseclib3\Crypt;

use phpseclib3\Crypt\Common\BlockCipher;
use phpseclib3\Exception\BadModeException;

/**
 * Pure-PHP implementation of RC2.
 *
 * @package RC2
 * @access  public
 */
class RC2 extends BlockCipher
{
    /**
     * Block Length of the cipher
     *
     * @see \phpseclib3\Crypt\Common\SymmetricKey::block_size
     * @var int
     * @access private
     */
    protected $block_size = 8;

/**
     * The Key
     *
     * @see \phpseclib3\Crypt\Common\SymmetricKey::key
     * @see self::setKey()
     * @var string
     * @access private
     */
    protected $key;

/**
     * The Original (unpadded) Key
     *
     * @see \phpseclib3\Crypt\Common\SymmetricKey::key
     * @see self::setKey()
     * @see self::encrypt()
     * @see self::decrypt()
     * @var string
     * @access private
     */
    private $orig_key;

/**
     * Don't truncate / null pad key
     *
     * @see \phpseclib3\Crypt\Common\SymmetricKey::clearBuffers()
     * @var bool
     * @access private
     */
    private $skip_key_adjustment = true;

/**
     * Key Length (in bytes)
     *
     * @see \phpseclib3\Crypt\RC2::setKeyLength()
     * @var int
     * @access private
     */
    protected $key_length = 16; // = 128 bits

/**
     * The mcrypt specific name of the cipher
     *
     * @see \phpseclib3\Crypt\Common\SymmetricKey::cipher_name_mcrypt
     * @var string
     * @access private
     */
    protected $cipher_name_mcrypt = 'rc2';

/**
     * Optimizing value while CFB-encrypting
     *
     * @see \phpseclib3\Crypt\Common\SymmetricKey::cfb_init_len
     * @var int
     * @access private
     */
    protected $cfb_init_len = 500;

/**
     * The key length in bits.
     *
     * {@internal Should be in range [1..1024].}
     *
     * {@internal Changing this value after setting the key has no effect.}
     *
     * @see self::setKeyLength()
     * @see self::setKey()
     * @var int
     * @access private
     */
    private $default_key_length = 1024;

/**
     * The key length in bits.
     *
     * {@internal Should be in range [1..1024].}
     *
     * @see self::isValidEnine()
     * @see self::setKey()
     * @var int
     * @access private
     */
    private $current_key_length;

/**
     * The Key Schedule
     *
     * @see self::setupKey()
     * @var array
     * @access private
     */
    private $keys;

/**
     * Key expansion randomization table.
     * Twice the same 256-value sequence to save a modulus in key expansion.
     *
     * @see self::setKey()
     * @var array
     * @access private
     */
    private static $pitable = [
        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 self::setKey()
     * @var array
     * @access private
     */
    private static $invpitable = [
        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.
     *
     * @param string $mode
     * @access public
     * @throws \InvalidArgumentException if an invalid / unsupported mode is provided
     */
    public function __construct($mode)
    {
        parent::__construct($mode);

if ($this->mode == self::MODE_STREAM) {
            throw new BadModeException('Block ciphers cannot be ran in stream mode');
        }
    }

/**
     * Test for engine validity
     *
     * This is mainly just a wrapper to set things up for \phpseclib3\Crypt\Common\SymmetricKey::isValidEngine()
     *
     * @see \phpseclib3\Crypt\Common\SymmetricKey::__construct()
     * @param int $engine
     * @access protected
     * @return bool
     */
    protected function isValidEngineHelper($engine)
    {
        switch ($engine) {
            case self::ENGINE_OPENSSL:
                if ($this->current_key_length != 128 || strlen($this->orig_key) < 16) {
                    return false;
                }
                $this->cipher_name_openssl_ecb = 'rc2-ecb';
                $this->cipher_name_openssl = 'rc2-' . $this->openssl_translate_mode();
        }

return parent::isValidEngineHelper($engine);
    }

/**
     * Sets the key length.
     *
     * Valid key lengths are 8 to 1024.
     * Calling this function after setting the key has no effect until the next
     *  \phpseclib3\Crypt\RC2::setKey() call.
     *
     * @access public
     * @param int $length in bits
     * @throws \LengthException if the key length isn't supported
     */
    public function setKeyLength($length)
    {
        if ($length < 8 || $length > 1024) {
            throw new \LengthException('Key size of ' . $length . ' bits is not supported by this algorithm. Only keys between 1 and 1024 bits, inclusive, are supported');
        }

$this->default_key_length = $this->current_key_length = $length;
        $this->explicit_key_length = $length >> 3;
    }

/**
     * Returns the current key length
     *
     * @access public
     * @return int
     */
    public function getKeyLength()
    {
        return $this->current_key_length;
    }

/**
     * Sets the key.
     *
     * Keys can be of any length. RC2, itself, uses 8 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.
     *
     * @see \phpseclib3\Crypt\Common\SymmetricKey::setKey()
     * @access public
     * @param string $key
     * @param int|boolean $t1 optional Effective key length in bits.
     * @throws \LengthException if the key length isn't supported
     */
    public function setKey($key, $t1 = false)
    {
        $this->orig_key = $key;

if ($t1 === false) {
            $t1 = $this->default_key_length;
        }

if ($t1 < 1 || $t1 > 1024) {
            throw new \LengthException('Key size of ' . $length . ' bits is not supported by this algorithm. Only keys between 1 and 1024 bits, inclusive, are supported');
        }

$this->current_key_length = $t1;
        if (strlen($key) < 1 || strlen($key) > 128) {
            throw new \LengthException('Key of size ' . strlen($key) . ' not supported by this algorithm. Only keys of sizes between 8 and 1024 bits, inclusive, are supported');
        }

$t = strlen($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.
        $pitable = self::$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.
        $l[0] = self::$invpitable[$l[0]];
        array_unshift($l, 'C*');

$this->key = pack(...$l);
        $this->key_length = strlen($this->key);
        $this->changed = $this->nonIVChanged = true;
        $this->setEngine();
    }

/**
     * Encrypts a message.
     *
     * Mostly a wrapper for \phpseclib3\Crypt\Common\SymmetricKey::encrypt, with some additional OpenSSL handling code
     *
     * @see self::decrypt()
     * @access public
     * @param string $plaintext
     * @return string $ciphertext
     */
    public function encrypt($plaintext)
    {
        if ($this->engine == self::ENGINE_OPENSSL) {
            $temp = $this->key;
            $this->key = $this->orig_key;
            $result = parent::encrypt($plaintext);
            $this->key = $temp;
            return $result;
        }

return parent::encrypt($plaintext);
    }

/**
     * Decrypts a message.
     *
     * Mostly a wrapper for \phpseclib3\Crypt\Common\SymmetricKey::decrypt, with some additional OpenSSL handling code
     *
     * @see self::encrypt()
     * @access public
     * @param string $ciphertext
     * @return string $plaintext
     */
    public function decrypt($ciphertext)
    {
        if ($this->engine == self::ENGINE_OPENSSL) {
            $temp = $this->key;
            $this->key = $this->orig_key;
            $result = parent::decrypt($ciphertext);
            $this->key = $temp;
            return $result;
        }

return parent::decrypt($ciphertext);
    }

/**
     * Encrypts a block
     *
     * @see \phpseclib3\Crypt\Common\SymmetricKey::encryptBlock()
     * @see \phpseclib3\Crypt\Common\SymmetricKey::encrypt()
     * @access private
     * @param string $in
     * @return string
     */
    protected function encryptBlock($in)
    {
        list($r0, $r1, $r2, $r3) = array_values(unpack('v*', $in));
        $keys = $this->keys;
        $limit = 20;
        $actions = [$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 \phpseclib3\Crypt\Common\SymmetricKey::decryptBlock()
     * @see \phpseclib3\Crypt\Common\SymmetricKey::decrypt()
     * @access private
     * @param string $in
     * @return string
     */
    protected function decryptBlock($in)
    {
        list($r0, $r1, $r2, $r3) = array_values(unpack('v*', $in));
        $keys = $this->keys;
        $limit = 44;
        $actions = [$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 \phpseclib3\Crypt\Common\SymmetricKey::setupKey()
     * @access private
     */
    protected function setupKey()
    {
        if (!isset($this->key)) {
            $this->setKey('');
        }

// Key has already been expanded in \phpseclib3\Crypt\RC2::setKey():
        // Only the first value must be altered.
        $l = unpack('Ca/Cb/v*', $this->key);
        array_unshift($l, self::$pitable[$l['a']] | ($l['b'] << 8));
        unset($l['a']);
        unset($l['b']);
        $this->keys = $l;
    }

/**
     * Setup the performance-optimized function for de/encrypt()
     *
     * @see \phpseclib3\Crypt\Common\SymmetricKey::setupInlineCrypt()
     * @access private
     */
    protected function setupInlineCrypt()
    {
        // Init code for both, encrypt and decrypt.
        $init_crypt = '$keys = $this->keys;';

$keys = $this->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;
        $actions = [$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;
        $actions = [$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
        $this->inline_crypt = $this->createInlineCryptFunction(
            [
               'init_crypt'    => $init_crypt,
               'encrypt_block' => $encrypt_block,
               'decrypt_block' => $decrypt_block
            ]
        );
    }
}

Name	Type	Actions
Common	Directory
DH	Directory
DSA	Directory
EC	Directory
RSA	Directory
AES.php	File
Blowfish.php	File
ChaCha20.php	File
DES.php	File
DH.php	File
DSA.php	File
EC.php	File
Hash.php	File
PublicKeyLoader.php	File
RC2.php	File
RC4.php	File
RSA.php	File
Random.php	File
Rijndael.php	File
Salsa20.php	File
TripleDES.php	File
Twofish.php	File
error_log	File