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 IEnumerable <DeterministicSigTest> ParseTests(string tests)
{
foreach (string test in tests.Split(new string[] { "With " }, StringSplitOptions.RemoveEmptyEntries))
{
DeterministicSigTest result = ParseTest("With " + test);
if (result != null)
{
yield return(result);
}
}
}
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);
}
public void IETFDetailedExample()
{
ECPrivateKeyParameters key = ParseKey(
@"
curve: NIST K-163
q = 4000000000000000000020108A2E0CC0D99F8A5EF
x = 09A4D6792295A7F730FC3F2B49CBC0F62E862272F
Ux = 79AEE090DB05EC252D5CB4452F356BE198A4FF96F
Uy = 782E29634DDC9A31EF40386E896BAA18B53AFA5A3");
DeterministicSigTest test = ParseTest(@"
With SHA-256, message = sample:
k = 23AF4074C90A02B3FE61D286D5C87F425E6BDD81B
r = 113A63990598A3828C407C0F4D2438D990DF99A7F
s = 1313A2E03F5412DDB296A22E2C455335545672D9F");
TestSig(key, test);
}
private void TestSig(DeterministicSigTest test)
{
TestSig(test.Key, test);
}
private void TestSig(ECPrivateKeyParameters key, DeterministicSigTest test)
{
DeterministicECDSA dsa = new DeterministicECDSA(test.Hash);
dsa.setPrivateKey(key);
dsa.update(Encoding.UTF8.GetBytes(test.Message));
var result = dsa.sign();
Assert.Equal(test.K, dsa.LastK);
Assert.Equal(test.R, dsa.LastR);
Assert.Equal(test.S, ECDSASignature.FromDER(result).S);
}
private void TestSig(DeterministicSigTest test)
{
TestSig(test.Key, test);
}
