public void SignAndVerifyFromMessageTest()
        {
            var     kp        = PublicKeyAuth.GenerateKeyPair();
            var     signature = new PublicKeyAuth();
            IBuffer data      = CryptographicBuffer.ConvertStringToBinary("Hello, World!", BinaryStringEncoding.Utf8);

            signature.Append(data);

            var output = signature.GetValueAndReset(kp.Secret);

            Assert.AreEqual(64, output.Length);
            Assert.AreEqual(true, signature.GetValueAndVerify(output, kp.Public));
        }