/**
* Decrypts node key
*
* @param string $node_key Base64 encrypted node key
* @param string $folder_key Base64 master key
* @return string Base64 node key
*/
private function _decryptB64NodeKey($node_key, $folder_key)
{
return Utils_MiscTools::urlBase64Encode(Utils_CryptTools::aesEcbDecrypt(Utils_MiscTools::urlBase64Decode($node_key), $this->_urlBase64KeyDecode($folder_key)));
}
