public AesProtectorKeyRing(ProtectorOptions options)
        {
            _locker   = new object();
            _keyRings = new Dictionary <string, XDocument>();
            _dirInfo  = new DirectoryInfo(options.KeyPath);

            ReadKeys(_dirInfo);
        }
        public AesProtector(ProtectorOptions options)
        {
            _locker = new object();

            _protectors = new Dictionary <string, SecurityUtil.AesProtector>();

            _dirInfo = new DirectoryInfo(options.KeyPath);
        }