lithium\storage\session\strategy\Encrypt::_decrypt PHP Метод

    protected function _decrypt($encrypted)
    {
        $secret = $this->_hashSecret($this->_config['secret']);
        $vectorSize = strlen(base64_encode(str_repeat(" ", static::_vectorSize())));
        $vector = base64_decode(substr($encrypted, -$vectorSize));
        $data = base64_decode(substr($encrypted, 0, -$vectorSize));
        mcrypt_generic_init(static::$_resource, $secret, $vector);
        $decrypted = mdecrypt_generic(static::$_resource, $data);
        mcrypt_generic_deinit(static::$_resource);
        return unserialize(trim($decrypted));
    }

 public function decrypt($encrypted)
 {
     return parent::_decrypt($encrypted);
 }