diff options
Diffstat (limited to 'libs/phpseclib-1.0.4/phpseclib/Crypt/AES.php')
| -rw-r--r-- | libs/phpseclib-1.0.4/phpseclib/Crypt/AES.php | 197 |
1 files changed, 0 insertions, 197 deletions
diff --git a/libs/phpseclib-1.0.4/phpseclib/Crypt/AES.php b/libs/phpseclib-1.0.4/phpseclib/Crypt/AES.php deleted file mode 100644 index 594011e..0000000 --- a/libs/phpseclib-1.0.4/phpseclib/Crypt/AES.php +++ /dev/null @@ -1,197 +0,0 @@ -<?php - -/** - * Pure-PHP implementation of AES. - * - * Uses mcrypt, if available/possible, and an internal implementation, otherwise. - * - * PHP versions 4 and 5 - * - * NOTE: Since AES.php is (for compatibility and phpseclib-historical reasons) virtually - * just a wrapper to Rijndael.php you may consider using Rijndael.php instead of - * to save one include_once(). - * - * If {@link self::setKeyLength() setKeyLength()} isn't called, it'll be calculated from - * {@link self::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 self::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 self::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 2008 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')) { - include_once 'Rijndael.php'; -} - -/**#@+ - * @access public - * @see self::encrypt() - * @see self::decrypt() - */ -/** - * Encrypt / decrypt using the Counter mode. - * - * Set to -1 since that's what Crypt/Random.php uses to index the CTR mode. - * - * @link http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation#Counter_.28CTR.29 - */ -define('CRYPT_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); -/**#@-*/ - -/** - * Pure-PHP implementation of AES. - * - * @package Crypt_AES - * @author Jim Wigginton <terrafrost@php.net> - * @access public - */ -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'; - - /** - * 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 int $length - */ - function setBlockLength($length) - { - return; - } - - /** - * Sets the key length - * - * Valid key lengths are 128, 192, and 256. If the length is less than 128, it will be rounded up to - * 128. If the length is greater than 128 and invalid, it will be rounded down to the closest valid amount. - * - * @see Crypt_Rijndael:setKeyLength() - * @access public - * @param int $length - */ - function setKeyLength($length) - { - switch ($length) { - case 160: - $length = 192; - break; - case 224: - $length = 256; - } - parent::setKeyLength($length); - } - - /** - * Sets the key. - * - * Rijndael supports five different key lengths, AES only supports three. - * - * @see Crypt_Rijndael:setKey() - * @see setKeyLength() - * @access public - * @param string $key - */ - function setKey($key) - { - parent::setKey($key); - - if (!$this->explicit_key_length) { - $length = strlen($key); - switch (true) { - case $length <= 16: - $this->key_length = 16; - break; - case $length <= 24: - $this->key_length = 24; - break; - default: - $this->key_length = 32; - } - $this->_setEngine(); - } - } -} |