public async Task <EthECDSASignature> SignAndCalculateVAsync(byte[] hash, BigInteger chainId)
{
var signature = await _ethExternalSigner.SignAsync(hash);
if (_ethExternalSigner.CalculatesV)
{
return(new EthECDSASignature(signature));
}
var publicKey = await _ethExternalSigner.GetPublicKeyAsync();
var recId = EthECKey.CalculateRecId(signature, hash, publicKey);
var vChain = EthECKey.CalculateV(chainId, recId);
signature.V = vChain.ToBytesForRLPEncoding();
return(new EthECDSASignature(signature));
}
public async Task <EthECDSASignature> SignAsync(byte[] rawBytes, BigInteger chainId)
{
var signature = await SignExternallyAsync(rawBytes).ConfigureAwait(false);
if (CalculatesV)
{
return(new EthECDSASignature(signature));
}
var publicKey = await GetPublicKeyAsync().ConfigureAwait(false);
var recId = EthECKey.CalculateRecId(signature, rawBytes, publicKey);
var vChain = EthECKey.CalculateV(chainId, recId);
signature.V = vChain.ToBytesForRLPEncoding();
return(new EthECDSASignature(signature));
}