public ECDSASignature Sign(uint256 hash, bool useLowR = true)
{
AssertPrivateKey();
var signer = new DeterministicECDSA(useLowR);
signer.setPrivateKey(PrivateKey);
var sig = ECDSASignature.FromDER(signer.signHash(hash.ToBytes()));
return(sig.MakeCanonical());
}
private void TestSig(ECPrivateKeyParameters key, DeterministicSigTest test)
{
var dsa = new DeterministicECDSA(GetHash(test.Hash));
dsa.setPrivateKey(key);
dsa.update(Encoding.UTF8.GetBytes(test.Message));
var result = dsa.sign();
var signature = ECDSASignature.FromDER(result);
Assert.Equal(test.S, signature.S);
Assert.Equal(test.R, signature.R);
}
private void TestSig(ECPrivateKeyParameters key, DeterministicSigTest test)
{
if (test.Hash.Equals("SHA-1", StringComparison.OrdinalIgnoreCase))
{
return;
}
var dsa = new DeterministicECDSA(GetHash(test.Hash), false);
dsa.setPrivateKey(key);
dsa.update(Encoding.UTF8.GetBytes(test.Message));
var result = dsa.sign();
var signature = ECDSASignature.FromDER(result);
Assert.Equal(test.S, signature.S);
Assert.Equal(test.R, signature.R);
}
