public void Ok()
{
BigInteger seed = new BigInteger(DateTime.Now.Ticks) << DateTime.Now.Second;
var rnd = new Random(BitConverter.ToInt32(seed.ToByteArray().Take(4).ToArray()));
var publicKey = new byte[32];
var secretKey = new byte[64];
var payload = new byte[64];
rnd.NextBytes(publicKey);
rnd.NextBytes(secretKey);
rnd.NextBytes(payload);
var pk = AddressUtils.GetPublicKeyFromAddr("5GWYBLjRtCQLXQmcyyRa6KaF1ihuqLjvVDE2gswJsEMxd9Qm");
var kp = new SR25519Keypair(pk.Bytes, secretKey);
var sig = SR25519.Sign(payload, (ulong)payload.Length, kp);
var arrayNotSame = new Func <byte[], bool>((btArr) => {
return(btArr.GroupBy((i) => i).Count() > 50);
});
Assert.True(sig.Length == 64);
Assert.True(arrayNotSame(sig));
}
public void ShouldGenerateKeypair()
{
// Arrange.
var seed = "fac7959dbfe72f052e5a0c3c8d6530f202b02fd8f9f5ca3580ec8deb7797479e";
var expectedPublic = "46ebddef8cd9bb167dc30878d7113b7e168e6f0646beffd77d69d39bad76b47a";
// Act.
var derived = SR25519.GenerateKeypairFromSeed(seed);
// Assert.
Assert.AreEqual(expectedPublic, Utils.ByteArrayToHexString(derived.Public));
}
public void ShouldSoftDerivePublicKey()
{
// Arrange.
var publicKey = "46ebddef8cd9bb167dc30878d7113b7e168e6f0646beffd77d69d39bad76b47a";
var cc = "0c666f6f00000000000000000000000000000000000000000000000000000000";
var expectedPublic = "40b9675df90efa6069ff623b0fdfcf706cd47ca7452a5056c7ad58194d23440a";
// Act.
var derived = SR25519.SoftDerivePublicKey(publicKey, cc);
// Assert.
Assert.AreEqual(expectedPublic, Utils.ByteArrayToHexString(derived));
}
public void ShouldVrfSignAndVerifyMessageBytes()
{
// Arrange.
var message1 = "Hello, world!";
var message2 = "Hello, Earth!";
// Act.
var keys = SR25519.GenerateKeypairFromSeed(
"f6dbe0604959f8d4f53ef58754f44391c69cfc87f1b97872abef63161e18c885");
var threshold = Enumerable.Repeat((byte)0xFF, 16).ToArray();
VrfSignResult signResult;
var signVerification = SR25519.VrfSignIfLess(
Encoding.UTF8.GetBytes(message1),
keys,
threshold,
out signResult
);
Assert.IsTrue(signVerification);
Assert.AreEqual(Sr25519SignatureResult.Ok, signResult.Result);
Assert.IsTrue(signResult.IsLess);
VrfVerifyResult verifyResult;
var verification1 = SR25519.VrfVerify(
Encoding.UTF8.GetBytes(message1),
keys.Public,
signResult.Output,
signResult.Proof,
threshold,
out verifyResult
);
Assert.IsTrue(verification1);
Assert.AreEqual(Sr25519SignatureResult.Ok, verifyResult.Result);
Assert.IsTrue(verifyResult.IsLess);
var verification2 = SR25519.VrfVerify(
Encoding.UTF8.GetBytes(message2),
keys.Public,
signResult.Output,
signResult.Proof,
threshold,
out verifyResult
);
Assert.IsFalse(verification2);
Assert.AreEqual(Sr25519SignatureResult.EquationFalse, verifyResult.Result);
Assert.IsFalse(verifyResult.IsLess);
}
public void ShouldSoftDeriveKeypair()
{
// Arrange.
var keys = SR25519.GenerateKeypairFromSeed(
"fac7959dbfe72f052e5a0c3c8d6530f202b02fd8f9f5ca3580ec8deb7797479e");
var cc = "0c666f6f00000000000000000000000000000000000000000000000000000000";
var expectedPublic = "40b9675df90efa6069ff623b0fdfcf706cd47ca7452a5056c7ad58194d23440a";
// Act.
var derived = SR25519.SoftDeriveKeypair(keys, cc);
// Assert.
Assert.AreEqual(expectedPublic, Utils.ByteArrayToHexString(derived.Public));
}
public void ShouldHardDeriveKeypair()
{
// Arrange.
var keys = SR25519.GenerateKeypairFromSeed(
"fac7959dbfe72f052e5a0c3c8d6530f202b02fd8f9f5ca3580ec8deb7797479e");
var cc = "14416c6963650000000000000000000000000000000000000000000000000000";
var expectedPublic = "d43593c715fdd31c61141abd04a99fd6822c8558854ccde39a5684e7a56da27d";
// Act.
var derived = SR25519.HardDeriveKeypair(keys, cc);
// Assert.
Assert.AreEqual(expectedPublic, Utils.ByteArrayToHexString(derived.Public));
}
public void ShouldSignAndVerifyMessageString()
{
// Arrange.
var message1 = "positive test message";
var message2 = "negative test message";
// Act.
var keys = SR25519.GenerateKeypairFromSeed(
"f6dbe0604959f8d4f53ef58754f44391c69cfc87f1b97872abef63161e18c885");
var sig = SR25519.Sign(message1, keys);
var verification1 = SR25519.Verify(message1, sig, keys.Public);
var verification2 = SR25519.Verify(message2, sig, keys.Public);
// Assert.
Assert.IsTrue(verification1);
Assert.IsFalse(verification2);
}
public void ShouldSignAndVerifyMessageBytes()
{
// Arrange.
var message1 = "010203040506070809";
var message2 = "090807060504030201";
// Act.
var keys = SR25519.GenerateKeypairFromSeed(
"f6dbe0604959f8d4f53ef58754f44391c69cfc87f1b97872abef63161e18c885");
var sig = SR25519.Sign(Utils.HexStringToByteArray(message1), keys);
var verification1 = SR25519.Verify(Utils.HexStringToByteArray(message1), sig, keys.Public);
var verification2 = SR25519.Verify(Utils.HexStringToByteArray(message2), sig, keys.Public);
// Assert.
Assert.IsTrue(verification1);
Assert.IsFalse(verification2);
}
private string ExtrinsicQueryString(byte[] encodedMethodBytes, string module, string method, Address sender, string privateKey)
{
_logger.Info("=== Started Invoking Extrinsic ===");
// Get account Nonce
var nonce = GetAccountNonce(sender);
var compactNonce = Scale.EncodeCompactInteger(nonce);
_logger.Info($"sender nonce: {nonce}");
byte[] mmBuf = new byte[3];
// Module + Method
var absoluteIndex = _protocolParams.Metadata.GetModuleIndex(module, false);
mmBuf[0] = (byte)_protocolParams.Metadata.GetModuleIndex(module, true);
mmBuf[1] = (byte)_protocolParams.Metadata.GetCallMethodIndex(absoluteIndex, method);
// Address separator
mmBuf[2] = Consts.ADDRESS_SEPARATOR;
Extrinsic ce = new Extrinsic();
var completeMessage = new byte[encodedMethodBytes.Length + 3];
mmBuf.CopyTo(completeMessage.AsMemory());
encodedMethodBytes.CopyTo(completeMessage.AsMemory(3));
// memcpy(completeMessage + 3, encodedMethodBytes, encodedMethodBytesSize);
ce.Signature.Version = Consts.SIGNATURE_VERSION;
var senderPK = _protocolParams.Metadata.GetPublicKeyFromAddr(sender);
ce.Signature.SignerPublicKey = senderPK.Bytes;
ce.Signature.Nonce = nonce;
ce.Signature.Era = ExtrinsicEra.IMMORTAL_ERA;
// Format signature payload
SignaturePayload sp = new SignaturePayload();
sp.Nonce = nonce;
sp.MethodBytesLength = encodedMethodBytes.Length + 3;
sp.MethodBytes = completeMessage;
sp.Era = ExtrinsicEra.IMMORTAL_ERA;
sp.AuthoringBlockHash = _protocolParams.GenesisBlockHash;
// Serialize and Sign payload
var signaturePayloadBytes = new byte[Consts.MAX_METHOD_BYTES_SZ];
long payloadLength = sp.SerializeBinary(ref signaturePayloadBytes);
var secretKeyVec = Converters.StringToByteArray(privateKey);
// p/invoke version
var kp = new SR25519Keypair(ce.Signature.SignerPublicKey, secretKeyVec);
var sig = SR25519.Sign(signaturePayloadBytes, (ulong)payloadLength, kp);
ce.Signature.Sr25519Signature = sig;
//// adopted version
//var sr25519 = new Sr25519();
//var message = signaturePayloadBytes.AsMemory().Slice(0, (int)payloadLength).ToArray();
//var sig2 = sr25519.Sign(secretKeyVec, te.Signature.SignerPublicKey, message);
//te.Signature.Sr25519Signature = sig2.ToBytes();
// Copy signature bytes to transaction
ce.Signature.Sr25519Signature = sig;
var length = Consts.DEFAULT_FIXED_EXSTRINSIC_SIZE + encodedMethodBytes.Length + compactNonce.Length - 1;
var compactLength = Scale.EncodeCompactInteger(length);
/////////////////////////////////////////
// Serialize message signature and write to buffer
long writtenLength = 0;
var buf = new byte[2048];
var buf2 = new List <byte>();
// Length
writtenLength += Scale.WriteCompactToBuf(compactLength, ref buf, writtenLength);
// Signature version
buf[writtenLength++] = ce.Signature.Version;
// Address separator
buf[writtenLength++] = Consts.ADDRESS_SEPARATOR;
// Signer public key
ce.Signature.SignerPublicKey.CopyTo(buf.AsMemory((int)writtenLength));
writtenLength += Consts.SR25519_PUBLIC_SIZE;
// SR25519 Signature
ce.Signature.Sr25519Signature.CopyTo(buf.AsMemory((int)writtenLength));
writtenLength += Consts.SR25519_SIGNATURE_SIZE;
// Nonce
writtenLength += Scale.WriteCompactToBuf(compactNonce, ref buf, writtenLength);
// Extrinsic Era
buf[writtenLength++] = (byte)ce.Signature.Era;
// Serialize and send transaction
var teBytes = new byte[Consts.MAX_METHOD_BYTES_SZ];
teBytes = buf;
completeMessage.AsMemory().CopyTo(teBytes.AsMemory((int)writtenLength));
long teByteLength = writtenLength + encodedMethodBytes.Length + 3;
return($"0x{Converters.ByteArrayToString(teBytes, (int)teByteLength)}");
}
public int SignAndSendTransfer(string sender, string privateKey, string recipient, BigInteger amount, Action <string> callback)
{
_logger.Info("=== Starting a Transfer Extrinsic ===");
// Get account Nonce
var address = new Address {
Symbols = sender
};
var nonce = GetAccountNonce(address);
_logger.Info($"sender nonce: {nonce} ");
// Format transaction
TransferExtrinsic te = new TransferExtrinsic();
te.Method.ModuleIndex = _protocolParams.BalanceModuleIndex;
te.Method.MethodIndex = _protocolParams.TransferMethodIndex;
var recipientPK = _protocolParams.Metadata.GetPublicKeyFromAddr(new Address(recipient));
te.Method.ReceiverPublicKey = recipientPK.Bytes;
te.Method.Amount = amount;
te.Signature.Version = Consts.SIGNATURE_VERSION;
var senderPK = _protocolParams.Metadata.GetPublicKeyFromAddr(new Address(sender));
te.Signature.SignerPublicKey = senderPK.Bytes;
te.Signature.Nonce = nonce;
te.Signature.Era = ExtrinsicEra.IMMORTAL_ERA;
// Format signature payload
SignaturePayload sp = new SignaturePayload();
sp.Nonce = nonce;
var methodBytes = new byte[Consts.MAX_METHOD_BYTES_SZ];
sp.MethodBytesLength = (int)te.SerializeMethodBinary(ref methodBytes);
sp.MethodBytes = methodBytes;
sp.Era = ExtrinsicEra.IMMORTAL_ERA;
sp.AuthoringBlockHash = _protocolParams.GenesisBlockHash;
// Serialize and Sign payload
var signaturePayloadBytes = new byte[Consts.MAX_METHOD_BYTES_SZ];
long payloadLength = sp.SerializeBinary(ref signaturePayloadBytes);
byte[] secretKeyVec = Converters.StringToByteArray(privateKey);
// p/invoke version
var kp = new SR25519Keypair(te.Signature.SignerPublicKey, secretKeyVec);
var sig = SR25519.Sign(signaturePayloadBytes, (ulong)payloadLength, kp);
te.Signature.Sr25519Signature = sig;
//// adopted version
//var sr25519 = new Sr25519();
//var message = signaturePayloadBytes.AsMemory().Slice(0, (int)payloadLength).ToArray();
//var sig2 = sr25519.Sign(secretKeyVec, te.Signature.SignerPublicKey, message);
//te.Signature.Sr25519Signature = sig2.ToBytes();
// Serialize and send transaction
var teBytes = new byte[Consts.MAX_METHOD_BYTES_SZ];
long teByteLength = te.SerializeBinary(ref teBytes);
string teStr = $"0x{Converters.ByteArrayToString(teBytes, (int)teByteLength)}";
var query = new JObject {
{ "method", "author_submitAndWatchExtrinsic" }, { "params", new JArray {
teStr
} }
};
// Send == Subscribe callback to completion
return(Subscribe(query, (json) =>
{
callback(json.ToString());
}));
}
