BitSharper.Test.EcKeyTest.TestAsn1Roundtrip C# (CSharp) Method

        public void TestAsn1Roundtrip()
        {
            var privKeyAsn1 = Hex.Decode("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");
            var decodedKey = EcKey.FromAsn1(privKeyAsn1);

            // Now re-encode and decode the ASN.1 to see if it is equivalent (it does not produce the exact same byte
            // sequence, some integers are padded now).
            var roundtripKey = EcKey.FromAsn1(decodedKey.ToAsn1());

            byte[] message;
            foreach (var key in new[] {decodedKey, roundtripKey})
            {
                message = Utils.ReverseBytes(Hex.Decode("11da3761e86431e4a54c176789e41f1651b324d240d599a7067bee23d328ec2a"));
                var output = key.Sign(message);
                Assert.IsTrue(key.Verify(message, output));

                output = Hex.Decode("304502206faa2ebc614bf4a0b31f0ce4ed9012eb193302ec2bcaccc7ae8bb40577f47549022100c73a1a1acc209f3f860bf9b9f5e13e9433db6f8b7bd527a088a0e0cd0a4c83e9");
                Assert.IsTrue(key.Verify(message, output));
            }

            // Try to sign with one key and verify with the other.
            message = Utils.ReverseBytes(Hex.Decode("11da3761e86431e4a54c176789e41f1651b324d240d599a7067bee23d328ec2a"));
            Assert.IsTrue(roundtripKey.Verify(message, decodedKey.Sign(message)));
            Assert.IsTrue(decodedKey.Verify(message, roundtripKey.Sign(message)));
        }