75 lines
2.3 KiB
PHP
75 lines
2.3 KiB
PHP
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<?php
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/*
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* 2007-2014 PrestaShop
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*
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* NOTICE OF LICENSE
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*
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* This source file is subject to the Open Software License (OSL 3.0)
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* that is bundled with this package in the file LICENSE.txt.
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* It is also available through the world-wide-web at this URL:
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* http://opensource.org/licenses/osl-3.0.php
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* If you did not receive a copy of the license and are unable to
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* obtain it through the world-wide-web, please send an email
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* to license@prestashop.com so we can send you a copy immediately.
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*
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* DISCLAIMER
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*
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* Do not edit or add to this file if you wish to upgrade PrestaShop to newer
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* versions in the future. If you wish to customize PrestaShop for your
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* needs please refer to http://www.prestashop.com for more information.
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*
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* @author PrestaShop SA <contact@prestashop.com>
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* @copyright 2007-2014 PrestaShop SA
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* @license http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0)
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* International Registered Trademark & Property of PrestaShop SA
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*/
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class RijndaelCore
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{
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protected $_key;
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protected $_iv;
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public function __construct($key, $iv)
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{
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$this->_key = $key;
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$this->_iv = base64_decode($iv);
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}
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/**
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* Base64 is not required, but it is be more compact than urlencode
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*
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* @param string $plaintext
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* @return bool|string
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*/
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public function encrypt($plaintext)
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{
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$length = (ini_get('mbstring.func_overload') & 2) ? mb_strlen($plaintext, ini_get('default_charset')) : strlen($plaintext);
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if ($length >= 1048576)
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return false;
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return base64_encode(mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $this->_key, $plaintext, MCRYPT_MODE_ECB, $this->_iv)).sprintf('%06d', $length);
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}
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public function decrypt($ciphertext)
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{
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if (ini_get('mbstring.func_overload') & 2)
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{
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$length = intval(mb_substr($ciphertext, -6, 6, ini_get('default_charset')));
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$ciphertext = mb_substr($ciphertext, 0, -6, ini_get('default_charset'));
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return mb_substr(
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mcrypt_decrypt(MCRYPT_RIJNDAEL_128, $this->_key, base64_decode($ciphertext), MCRYPT_MODE_ECB, $this->_iv),
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0,
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$length,
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ini_get('default_charset')
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);
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}
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else
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{
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$length = intval(substr($ciphertext, -6));
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$ciphertext = substr($ciphertext, 0, -6);
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return substr(mcrypt_decrypt(MCRYPT_RIJNDAEL_128, $this->_key, base64_decode($ciphertext), MCRYPT_MODE_ECB, $this->_iv), 0, $length);
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}
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}
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}
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