public void ShouldGenerateKeypair()
{
// Arrange.
var seed = "fac7959dbfe72f052e5a0c3c8d6530f202b02fd8f9f5ca3580ec8deb7797479e";
var expectedPublic = "46ebddef8cd9bb167dc30878d7113b7e168e6f0646beffd77d69d39bad76b47a";
// Act.
var derived = SR25519.GenerateKeypairFromSeed(seed);
// Assert.
Assert.AreEqual(expectedPublic, Utils.ByteArrayToHexString(derived.Public));
}
public void ShouldVrfSignAndVerifyMessageBytes()
{
// Arrange.
var message1 = "Hello, world!";
var message2 = "Hello, Earth!";
// Act.
var keys = SR25519.GenerateKeypairFromSeed(
"f6dbe0604959f8d4f53ef58754f44391c69cfc87f1b97872abef63161e18c885");
var threshold = Enumerable.Repeat((byte)0xFF, 16).ToArray();
VrfSignResult signResult;
var signVerification = SR25519.VrfSignIfLess(
Encoding.UTF8.GetBytes(message1),
keys,
threshold,
out signResult
);
Assert.IsTrue(signVerification);
Assert.AreEqual(Sr25519SignatureResult.Ok, signResult.Result);
Assert.IsTrue(signResult.IsLess);
VrfVerifyResult verifyResult;
var verification1 = SR25519.VrfVerify(
Encoding.UTF8.GetBytes(message1),
keys.Public,
signResult.Output,
signResult.Proof,
threshold,
out verifyResult
);
Assert.IsTrue(verification1);
Assert.AreEqual(Sr25519SignatureResult.Ok, verifyResult.Result);
Assert.IsTrue(verifyResult.IsLess);
var verification2 = SR25519.VrfVerify(
Encoding.UTF8.GetBytes(message2),
keys.Public,
signResult.Output,
signResult.Proof,
threshold,
out verifyResult
);
Assert.IsFalse(verification2);
Assert.AreEqual(Sr25519SignatureResult.EquationFalse, verifyResult.Result);
Assert.IsFalse(verifyResult.IsLess);
}
public void ShouldSoftDeriveKeypair()
{
// Arrange.
var keys = SR25519.GenerateKeypairFromSeed(
"fac7959dbfe72f052e5a0c3c8d6530f202b02fd8f9f5ca3580ec8deb7797479e");
var cc = "0c666f6f00000000000000000000000000000000000000000000000000000000";
var expectedPublic = "40b9675df90efa6069ff623b0fdfcf706cd47ca7452a5056c7ad58194d23440a";
// Act.
var derived = SR25519.SoftDeriveKeypair(keys, cc);
// Assert.
Assert.AreEqual(expectedPublic, Utils.ByteArrayToHexString(derived.Public));
}
public void ShouldHardDeriveKeypair()
{
// Arrange.
var keys = SR25519.GenerateKeypairFromSeed(
"fac7959dbfe72f052e5a0c3c8d6530f202b02fd8f9f5ca3580ec8deb7797479e");
var cc = "14416c6963650000000000000000000000000000000000000000000000000000";
var expectedPublic = "d43593c715fdd31c61141abd04a99fd6822c8558854ccde39a5684e7a56da27d";
// Act.
var derived = SR25519.HardDeriveKeypair(keys, cc);
// Assert.
Assert.AreEqual(expectedPublic, Utils.ByteArrayToHexString(derived.Public));
}
public void ShouldSignAndVerifyMessageString()
{
// Arrange.
var message1 = "positive test message";
var message2 = "negative test message";
// Act.
var keys = SR25519.GenerateKeypairFromSeed(
"f6dbe0604959f8d4f53ef58754f44391c69cfc87f1b97872abef63161e18c885");
var sig = SR25519.Sign(message1, keys);
var verification1 = SR25519.Verify(message1, sig, keys.Public);
var verification2 = SR25519.Verify(message2, sig, keys.Public);
// Assert.
Assert.IsTrue(verification1);
Assert.IsFalse(verification2);
}
public void ShouldSignAndVerifyMessageBytes()
{
// Arrange.
var message1 = "010203040506070809";
var message2 = "090807060504030201";
// Act.
var keys = SR25519.GenerateKeypairFromSeed(
"f6dbe0604959f8d4f53ef58754f44391c69cfc87f1b97872abef63161e18c885");
var sig = SR25519.Sign(Utils.HexStringToByteArray(message1), keys);
var verification1 = SR25519.Verify(Utils.HexStringToByteArray(message1), sig, keys.Public);
var verification2 = SR25519.Verify(Utils.HexStringToByteArray(message2), sig, keys.Public);
// Assert.
Assert.IsTrue(verification1);
Assert.IsFalse(verification2);
}