public void DeterministicECDSA()
{
var privateKey = Hashes.SHA256(new byte[]{ 0x01 });
var signer = new ECDsaSigner(new Key(privateKey));
var signature = signer.GenerateSignature(Encoders.ASCII.Decode("hello word"));
Assert.IsTrue(signature.R == TestUtils.HexToBigInteger("8804e75cbdac8ab296df53eaf8f64cee01c283aa4a18f3f5853317faa282d4cd"));
Assert.IsTrue(signature.S == TestUtils.HexToBigInteger("42706d708c4fbf0dd075f3d3152872c7bd7e5ec9e2f691d33ce040d448f42002"));
}
public void CanSignMessage()
{
var dA = Hashes.SHA256(new byte[] { 0x01 });
var k = Encoders.Hex.Decode("0098e9c07e8e6adb97b77d85b0c10a265e11737a89a3e37b");
var rnd = new FakeRandom(k);
var key = new Key(dA);
var signer = new ECDsaSigner(rnd, key);
var message = Encoders.Hex.Decode("66e98a165854cd07989b1ee0ec3f8dbe0ee3c2fb0051ef53a0be03457c4f21bc");
var s1 = signer.GenerateSignature(message);
Assert.IsTrue(signer.VerifySignature(message, s1));
Assert.IsTrue(s1.R == (rnd.GetNextK()*Secp256k1.G).X%Secp256k1.N);
Assert.IsTrue(ECDsaSigner.VerifySignature(message, s1.R, s1.S, key.PublicKey));
}
public ECDSASignature Sign(byte[] input)
{
var signer = new ECDsaSigner(this);
return(signer.GenerateSignature(input));
}
public bool Verify(byte[] data, ECDSASignature signature)
{
return(ECDsaSigner.VerifySignature(data, signature, this));
}
public ECDSASignature Sign(byte[] input)
{
var signer = new ECDsaSigner(this);
return signer.GenerateSignature(input);
}