public EthECDSASignature SignAndCalculateV(byte[] hash, BigInteger chainId)
{
#if NETCOREAPP3_1 || NET5_0_OR_GREATER
if (SignRecoverable)
{
var privKey = Context.Instance.CreateECPrivKey(GetPrivateKeyAsBytes());
privKey.TrySignRecoverable(hash, out var recSignature);
recSignature.Deconstruct(out Scalar r, out var s, out var recId);
var vChain = CalculateV(chainId, recId);
return(EthECDSASignatureFactory.FromComponents(r.ToBytes(), s.ToBytes(),
vChain.ToBytesForRLPEncoding()));
}
else
{
#endif
var signature = _ecKey.Sign(hash);
var recId = CalculateRecId(signature, hash);
var vChain = CalculateV(chainId, recId);
signature.V = vChain.ToBytesForRLPEncoding();
return(new EthECDSASignature(signature));
#if NETCOREAPP3_1 || NET5_0_OR_GREATER
}
#endif
}
public RLPSigner(byte[][] data, byte[] r, byte[] s, byte[] v, int numberOfEncodingElements)
{
this.numberOfEncodingElements = numberOfEncodingElements;
this.data = data;
signature = EthECDSASignatureFactory.FromComponents(r, s, v);
decoded = true;
}
public RLPSigner(byte[][] data, byte[] r, byte[] s, byte v)
{
numberOfElements = data.Length;
this.data = data;
signature = EthECDSASignatureFactory.FromComponents(r, s, v);
decoded = true;
}
public static ISignedTransaction Create1559Transaction(BigInteger?chainId, BigInteger?nonce,
BigInteger?maxPriorityFeePerGas, BigInteger?maxFeePerGas,
BigInteger?gasLimit, string to, BigInteger?amount, string data,
List <AccessListItem> accessList, string r, string s, string v)
{
var rBytes = r.HexToByteArray();
var sBytes = s.HexToByteArray();
var vBytes = v.HexToByteArray();
var signature = EthECDSASignatureFactory.FromComponents(rBytes, sBytes, vBytes);
return(new Transaction1559(chainId ?? 0, nonce ?? 0, maxPriorityFeePerGas ?? 0, maxFeePerGas ?? 0,
gasLimit ?? 0, to, amount ?? 0, data, accessList,
signature));
}
public EthECDSASignature SignAndCalculateV(byte[] hash)
{
#if NETCOREAPP3_1
var privKey = NBitcoin.Secp256k1.Context.Instance.CreateECPrivKey(GetPrivateKeyAsBytes());
NBitcoin.Secp256k1.SecpRecoverableECDSASignature recSignature;
privKey.TrySignRecoverable(hash, out recSignature);
NBitcoin.Secp256k1.Scalar r;
NBitcoin.Secp256k1.Scalar s;
int recId;
recSignature.Deconstruct(out r, out s, out recId);
return(EthECDSASignatureFactory.FromComponents(r.ToBytes(), s.ToBytes(), new[] { (byte)(recId + 27) }));
#else
var signature = _ecKey.Sign(hash);
var recId = CalculateRecId(signature, hash);
signature.V = new[] { (byte)(recId + 27) };
return(new EthECDSASignature(signature));
#endif
}
public static EthECDSASignature DecodeSignature(RLPCollection decodedElements, int numberOfEncodingElements)
{
EthECDSASignature signature = null;
if (decodedElements.Count > numberOfEncodingElements && decodedElements[numberOfEncodingElements + 1].RLPData != null)
{
var v = new byte[] { 0 };
//Decode Signature
if (decodedElements[numberOfEncodingElements].RLPData != null)
{
v = decodedElements[numberOfEncodingElements].RLPData;
}
var r = decodedElements[numberOfEncodingElements + 1].RLPData;
var s = decodedElements[numberOfEncodingElements + 2].RLPData;
signature = EthECDSASignatureFactory.FromComponents(r, s, v);
}
return(signature);
}
public static ISignedTransaction CreateLegacyTransaction(string to, BigInteger gas, BigInteger gasPrice, BigInteger amount, string data, BigInteger nonce, string r, string s, string v)
{
var rBytes = r.HexToByteArray();
var sBytes = s.HexToByteArray();
var vBytes = v.HexToByteArray();
var signature = EthECDSASignatureFactory.FromComponents(rBytes, sBytes, vBytes);
if (signature.IsVSignedForChain())
{
var vBigInteger = vBytes.ToBigIntegerFromRLPDecoded();
var chainId = EthECKey.GetChainFromVChain(vBigInteger);
return(new LegacyTransactionChainId(nonce.ToBytesForRLPEncoding(), gasPrice.ToBytesForRLPEncoding(), gas.ToBytesForRLPEncoding(),
to.HexToByteArray(), amount.ToBytesForRLPEncoding(), data.HexToByteArray(), chainId.ToBytesForRLPEncoding(), rBytes, sBytes, vBytes));
}
else
{
return(new LegacyTransaction(nonce.ToBytesForRLPEncoding(), gasPrice.ToBytesForRLPEncoding(), gas.ToBytesForRLPEncoding(),
to.HexToByteArray(), amount.ToBytesForRLPEncoding(), data.HexToByteArray(), rBytes, sBytes, vBytes[0]));
}
}
public static EthECDSASignature ExtractEcdsaSignature(string signature)
{
var signatureArray = signature.HexToByteArray();
var v = signatureArray[64];
if ((v == 0) || (v == 1))
{
v = (byte)(v + 27);
}
var r = new byte[32];
Array.Copy(signatureArray, r, 32);
var s = new byte[32];
Array.Copy(signatureArray, 32, s, 0, 32);
var ecdaSignature = EthECDSASignatureFactory.FromComponents(r, s, v);
return(ecdaSignature);
}
public static SignedData DecodeSigned(byte[] rawdata, int numberOfEncodingElements)
{
var decodedList = RLP.RLP.Decode(rawdata);
var decodedData = new List <byte[]>();
var decodedElements = (RLPCollection)decodedList[0];
EthECDSASignature signature = null;
for (var i = 0; i < numberOfEncodingElements; i++)
{
decodedData.Add(decodedElements[i].RLPData);
}
// only parse signature in case is signed
if (decodedElements[numberOfEncodingElements].RLPData != null)
{
//Decode Signature
var v = decodedElements[numberOfEncodingElements].RLPData;
var r = decodedElements[numberOfEncodingElements + 1].RLPData;
var s = decodedElements[numberOfEncodingElements + 2].RLPData;
signature = EthECDSASignatureFactory.FromComponents(r, s, v);
}
return(new SignedData(decodedData.ToArray(), signature));
}
public EthECDSASignature SignAndCalculateYParityV(byte[] hash)
{
#if NETCOREAPP3_1 || NET5_0_OR_GREATER
if (SignRecoverable)
{
var privKey = Context.Instance.CreateECPrivKey(GetPrivateKeyAsBytes());
privKey.TrySignRecoverable(hash, out var recSignature);
recSignature.Deconstruct(out Scalar r, out var s, out var recId);
return(EthECDSASignatureFactory.FromComponents(r.ToBytes(), s.ToBytes(), new[] { (byte)(recId) }));
}
else
{
#endif
var signature = _ecKey.Sign(hash);
var recId = CalculateRecId(signature, hash);
signature.V = new[] { (byte)(recId) };
return(new EthECDSASignature(signature));
#if NETCOREAPP3_1 || NET5_0_OR_GREATER
}
#endif
}
public void RlpDecode()
{
var decodedList = RLP.RLP.Decode(GetRLPEncoded());
var decodedData = new List <byte[]>();
var decodedElements = (RLPCollection)decodedList[0];
for (var i = 0; i < numberOfElements; i++)
{
decodedData.Add(decodedElements[i].RLPData);
}
// only parse signature in case is signed
if (decodedElements[numberOfElements].RLPData != null)
{
var v = decodedElements[numberOfElements].RLPData[0];
var r = decodedElements[numberOfElements + 1].RLPData;
var s = decodedElements[numberOfElements + 2].RLPData;
signature = EthECDSASignatureFactory.FromComponents(r, s, v);
}
data = decodedData.ToArray();
decoded = true;
}