public void BlsRoundtripSignAndVerify()
        {
            // Arrange
            var privateKey  = HexMate.Convert.FromHexString(PrivateKeys[1]);
            var messageHash = MessageHashes[0];
            var domain      = Domains[0];

            Console.WriteLine("Input:");
            Console.WriteLine("Private Key: [{0}] {1}", privateKey.Length, HexMate.Convert.ToHexString(privateKey));
            Console.WriteLine("Domain: [{0}] {1}", domain.Length, HexMate.Convert.ToHexString(domain));
            Console.WriteLine("MessageHash: [{0}] {1}", messageHash.Length, HexMate.Convert.ToHexString(messageHash));

            // Act
            var parameters = new BLSParameters()
            {
                PrivateKey = privateKey
            };

            using var bls = new BLSHerumi(parameters);

            var publicKey = new byte[48];

            _ = bls.TryExportBLSPublicKey(publicKey, out var _);

            Console.WriteLine("Public Key: [{0}] {1}", publicKey.Length, HexMate.Convert.ToHexString(publicKey));

            var initialX = new byte[96];

            _ = bls.TryCombineHashAndDomain(messageHash, domain, initialX, out var _);

            Console.WriteLine("InitialX: [{0}] {1}", initialX.Length, HexMate.Convert.ToHexString(initialX));

            var signature        = new byte[96];
            var signatureSuccess = bls.TrySignHash(initialX, signature.AsSpan(), out var bytesWritten);

            Console.WriteLine("Signature: {0} [{1}] {2}", signatureSuccess, bytesWritten, HexMate.Convert.ToHexString(signature));

            //var expectedSignature = HexMate.Convert.FromHexString("b9d1bf921b3dd048bdce38c2ceac2a2a8093c864881f2415f22b198de935ffa791707855c1656dc21a7af2d502bb46590151d645f062634c3b2cb79c4ed1c4a4b8b3f19f0f5c76965c651553e83d153ff95353735156eff77692f7a62ae653fb");
            //signature.ShouldBe(expectedSignature);

            var verifySuccess = bls.VerifyHash(initialX, signature);

            Console.WriteLine("Verify1: {0}", verifySuccess);

            var parameters2 = new BLSParameters()
            {
                PublicKey = publicKey
            };

            using var bls2 = new BLSHerumi(parameters);

            var verifySuccess2 = bls2.VerifyHash(initialX, signature);

            Console.WriteLine("Verify2: {0}", verifySuccess2);

            verifySuccess2.ShouldBeTrue();
        }
        public void Case04SignMessages(byte[] privateKey, byte[] messageHash, byte[] domain, byte[] expected)
        {
            // Arrange
            var parameters = new BLSParameters()
            {
                PrivateKey = privateKey
            };

            Console.WriteLine("Input:");
            Console.WriteLine("Domain: [{0}] {1}", domain.Length, HexMate.Convert.ToHexString(domain));
            Console.WriteLine("MessageHash: [{0}] {1}", messageHash.Length, HexMate.Convert.ToHexString(messageHash));
            Console.WriteLine("Private Key: [{0}] {1}", privateKey.Length, HexMate.Convert.ToHexString(privateKey));

            // Act
            using var bls = new BLSHerumi(parameters);
            var result  = new byte[96];
            var success = bls.TrySignHash(messageHash, result.AsSpan(), out var bytesWritten, domain);

            Console.WriteLine("Output:");
            Console.WriteLine("Signature: {0} [{1}] {2}", success, bytesWritten, HexMate.Convert.ToHexString(result));

            // Assert
            result.ShouldBe(expected);
        }
Example #3
0
        public void BlsRoundtripAggregatePublicKeyVerifySharedHash()
        {
            // Arrange
            var privateKey1       = HexMate.Convert.FromHexString(PrivateKeys[1]);
            var privateKey2       = HexMate.Convert.FromHexString(PrivateKeys[2]);
            var sharedMessageHash = MessageHashes[1];
            var domain1           = Domains[1];

            Console.WriteLine("Input:");
            Console.WriteLine("Private Key 1: [{0}] {1}", privateKey1.Length, HexMate.Convert.ToHexString(privateKey1));
            Console.WriteLine("Private Key 2: [{0}] {1}", privateKey2.Length, HexMate.Convert.ToHexString(privateKey2));
            Console.WriteLine("MessageHash 1: [{0}] {1}", sharedMessageHash.Length, HexMate.Convert.ToHexString(sharedMessageHash));
            Console.WriteLine("Domain: [{0}] {1}", domain1.Length, HexMate.Convert.ToHexString(domain1));

            // Sign 1
            using var bls1 = new BLSHerumi(new BLSParameters()
            {
                PrivateKey = privateKey1
            });
            var signature1 = new byte[96];

            _ = bls1.TrySignHash(sharedMessageHash, signature1.AsSpan(), out var _, domain1);
            Console.WriteLine("Signature 1: [{0}] {1}", signature1.Length, HexMate.Convert.ToHexString(signature1));
            var publicKey1 = new byte[48];

            _ = bls1.TryExportBlsPublicKey(publicKey1, out var _);
            Console.WriteLine("Public Key 1: [{0}] {1}", publicKey1.Length, HexMate.Convert.ToHexString(publicKey1));

            // Sign 2
            using var bls2 = new BLSHerumi(new BLSParameters()
            {
                PrivateKey = privateKey2
            });
            var signature2 = new byte[96];

            _ = bls2.TrySignHash(sharedMessageHash, signature2.AsSpan(), out var _, domain1);
            Console.WriteLine("Signature 2: [{0}] {1}", signature2.Length, HexMate.Convert.ToHexString(signature2));
            var publicKey2 = new byte[48];

            _ = bls2.TryExportBlsPublicKey(publicKey2, out var _);
            Console.WriteLine("Public Key 2: [{0}] {1}", publicKey2.Length, HexMate.Convert.ToHexString(publicKey2));

            // Aggregate public keys
            var publicKeys = new Span <byte>(new byte[48 * 2]);

            publicKey1.CopyTo(publicKeys);
            publicKey2.CopyTo(publicKeys.Slice(48));
            using var blsAggregateKeys = new BLSHerumi(new BLSParameters());
            var aggregatePublicKey = new byte[48];

            blsAggregateKeys.TryAggregatePublicKeys(publicKeys, aggregatePublicKey, out var _);
            Console.WriteLine("Aggregate Public Key: [{0}] {1}", aggregatePublicKey.Length, HexMate.Convert.ToHexString(aggregatePublicKey));

            // Aggregate signatures
            var signatures = new Span <byte>(new byte[96 * 2]);

            signature1.CopyTo(signatures);
            signature2.CopyTo(signatures.Slice(96));
            using var blsAggregate = new BLSHerumi(new BLSParameters());
            var aggregateSignature = new byte[96];

            blsAggregate.TryAggregateSignatures(signatures, aggregateSignature, out var _);
            Console.WriteLine("Aggregate Signature: [{0}] {1}", aggregateSignature.Length, HexMate.Convert.ToHexString(aggregateSignature));

            // Verify aggregates
            // i.e. the combined aggregatePublicKey / aggregateSignature are a valid pair
            var aggregatePublicKeyParameters = new BLSParameters()
            {
                PublicKey = aggregatePublicKey
            };

            using var blsVerify = new BLSHerumi(aggregatePublicKeyParameters);
            var verifySuccess = blsVerify.VerifyHash(sharedMessageHash, aggregateSignature, domain1);

            Console.WriteLine("Verify: {0}", verifySuccess);

            verifySuccess.ShouldBeTrue();
        }
Example #4
0
        public void BlsRoundtripSignAndAggregateVerify()
        {
            // Arrange
            var privateKey1  = HexMate.Convert.FromHexString(PrivateKeys[1]);
            var privateKey2  = HexMate.Convert.FromHexString(PrivateKeys[2]);
            var messageHash1 = MessageHashes[1];
            var messageHash2 = MessageHashes[2];
            var domain1      = Domains[1];

            Console.WriteLine("Input:");
            Console.WriteLine("Private Key 1: [{0}] {1}", privateKey1.Length, HexMate.Convert.ToHexString(privateKey1));
            Console.WriteLine("MessageHash 1: [{0}] {1}", messageHash1.Length, HexMate.Convert.ToHexString(messageHash1));
            Console.WriteLine("Private Key 2: [{0}] {1}", privateKey2.Length, HexMate.Convert.ToHexString(privateKey2));
            Console.WriteLine("MessageHash 2: [{0}] {1}", messageHash2.Length, HexMate.Convert.ToHexString(messageHash2));
            Console.WriteLine("Domain: [{0}] {1}", domain1.Length, HexMate.Convert.ToHexString(domain1));

            // Sign 1
            using var bls1 = new BLSHerumi(new BLSParameters()
            {
                PrivateKey = privateKey1
            });
            var signature1 = new byte[96];

            _ = bls1.TrySignHash(messageHash1, signature1.AsSpan(), out var _, domain1);
            Console.WriteLine("Signature 1: [{0}] {1}", signature1.Length, HexMate.Convert.ToHexString(signature1));
            var publicKey1 = new byte[48];

            _ = bls1.TryExportBlsPublicKey(publicKey1, out var _);
            Console.WriteLine("Public Key 1: [{0}] {1}", publicKey1.Length, HexMate.Convert.ToHexString(publicKey1));

            // Sign 2
            using var bls2 = new BLSHerumi(new BLSParameters()
            {
                PrivateKey = privateKey2
            });
            var signature2 = new byte[96];

            _ = bls2.TrySignHash(messageHash2, signature2.AsSpan(), out var _, domain1);
            Console.WriteLine("Signature 2: [{0}] {1}", signature2.Length, HexMate.Convert.ToHexString(signature2));
            var publicKey2 = new byte[48];

            _ = bls2.TryExportBlsPublicKey(publicKey2, out var _);
            Console.WriteLine("Public Key 2: [{0}] {1}", publicKey2.Length, HexMate.Convert.ToHexString(publicKey2));

            // Aggregate signatures
            var signatures = new Span <byte>(new byte[96 * 2]);

            signature1.CopyTo(signatures);
            signature2.CopyTo(signatures.Slice(96));
            using var blsAggregate = new BLSHerumi(new BLSParameters());
            var aggregateSignature = new byte[96];

            blsAggregate.TryAggregateSignatures(signatures, aggregateSignature, out var _);
            Console.WriteLine("Aggregate Signature: [{0}] {1}", aggregateSignature.Length, HexMate.Convert.ToHexString(aggregateSignature));

            // Aggregate verify
            using var blsVerify = new BLSHerumi(new BLSParameters());
            var publicKeys = new Span <byte>(new byte[48 * 2]);

            publicKey1.CopyTo(publicKeys);
            publicKey2.CopyTo(publicKeys.Slice(48));
            var hashes = new Span <byte>(new byte[32 * 2]);

            messageHash1.CopyTo(hashes);
            messageHash2.CopyTo(hashes.Slice(32));
            var verifySuccess = blsVerify.AggregateVerifyHashes(publicKeys, hashes, aggregateSignature, domain1);

            Console.WriteLine("Verify: {0}", verifySuccess);

            verifySuccess.ShouldBeTrue();
        }