public void DecodeSecretKey() { var keyMaster = new KeyMaster(); const string KeyString = "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCb1TXuuj1RESupASrVzk0U51oIPRaZVfdWPZo/VOljHTcfNl1/boHsp+IylC/tcVP9MYwiD5IQye78MjOQZ72rpJZMirmjE1P3mrckDFg1MexxsGn6/JRWWgh/AuN2T4/qkv5FXQvBxtLiaH9p4iV6lgCcTPEWZYMbpF4oiL4FwwIDAQAB"; SecretKey sk = keyMaster.DecodeSecretKey(KeyString); Assert.IsNotNull(sk); Assert.IsNotNull(sk.GetBytes()); }