* @copyright 2007-2011 PrestaShop SA
* @version Release: $Revision: 6594 $
* @license http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0)
* International Registered Trademark & Property of PrestaShop SA
*/
class RijndaelCore
{
protected $_key;
protected $_iv;
public function __construct($key, $iv)
{
$this->_key = $key;
$this->_iv = base64_decode($iv);
}
// Base64 is not required, but it is be more compact than urlencode
public function encrypt($plaintext)
{
if (($length = strlen($plaintext)) >= 1048576)
return false;
return base64_encode(mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $this->_key, $plaintext, MCRYPT_MODE_ECB, $this->_iv)).sprintf('%06d', $length);
}
public function decrypt($ciphertext)
{
$plainTextLength = intval(substr($ciphertext, -6));
$ciphertext = substr($ciphertext, 0, -6);
return substr(mcrypt_decrypt(MCRYPT_RIJNDAEL_128, $this->_key, base64_decode($ciphertext), MCRYPT_MODE_ECB, $this->_iv), 0, $plainTextLength);
}
}