public void TestAggregateCommitmentsEmptyCommitments()
{
var signatureService = new MultiSignature(_sepSecp256K1);
long bitmap = 3;
var commitments = new List <byte[]>();
var exception = Assert.Throws <ArgumentOutOfRangeException>(() => signatureService.AggregateCommitments(commitments, bitmap));
Console.WriteLine(exception.Message);
Assert.IsTrue(exception.Message.StartsWith("[commitments] cannot be less than or equal to 0."));
}
public void TestAggregateCommitmentsNullCommitments()
{
var signatureService = new MultiSignature(_sepSecp256K1);
long bitmap = 3;
List <byte[]> commitments = null;
var exception =
// ReSharper disable once ExpressionIsAlwaysNull
Assert.Throws <ArgumentNullException>(() => signatureService.AggregateCommitments(commitments, bitmap));
Console.WriteLine(exception.Message);
Assert.IsTrue(exception.Message.StartsWith("[commitments] cannot be Null."));
}
public void TestAggregatedCommitment()
{
var signatureService = new MultiSignature(_sepSecp256K1);
long bitmap = 0b111;
var commitments = new List <byte[]>
{
"02181b4df800671642e3df9a953a29a4f571acc1bf0714ed5ae714a9804d97079f".ToByteArray(),
"02e8196913323fbb7a34d9455b778e877e1d1fa0205b5949504e55a2d999931366".ToByteArray(),
"02ef67409f09053060e79d8ad5b1fe60690b5eaa35b67f071ca111a0a7edeb6b38".ToByteArray()
};
Assert.AreEqual("02534d4371d6ea9f8b856a632e4e31d784eec9120b3252080702d872c696012289",
signatureService.AggregateCommitments(commitments, bitmap).ToHexString());
}
public void TestVerifySignatureShareOk()
{
var signatureService = new MultiSignature(_sepSecp256K1);
var signers = new List <byte[]>();
var commitmentSecrets = new List <byte[]>();
var commitments = new List <byte[]>();
var alice = new Participant("Alice");
var bob = new Participant("Bob");
var carol = new Participant("Carol");
long bitmap = 0;
var message = "The quick brown fox jumps over the lazy dog.".ToHexEncodedByteArray();
signers.Add(alice.PublicKey);
signers.Add(bob.PublicKey);
signers.Add(carol.PublicKey);
for (var i = 0; i < signers.Count; i++)
{
bitmap = (bitmap << 1) | 1;
commitmentSecrets.Add(signatureService.ComputeCommitmentSecret());
commitments.Add(signatureService.ComputeCommitment(commitmentSecrets[i]));
}
var aggregatedCommitment = signatureService.AggregateCommitments(commitments, bitmap);
var challenge =
signatureService.ComputeChallenge(signers, alice.PublicKey, aggregatedCommitment, message, bitmap);
var signature = signatureService.ComputeSignatureShare(challenge, alice.PrivateKey, commitmentSecrets[0]);
Assert.IsTrue(signatureService.VerifySignatureShare(
signers,
alice.PublicKey,
signature,
aggregatedCommitment,
commitments[0],
message,
bitmap));
}
public void TestComputeChallengeEmptyPublicKeys()
{
var signatureService = new MultiSignature(_sepSecp256K1);
long bitmap = 0b111;
List <byte[]> publicKeys = new List <byte[]>();
var keyPair = new Participant("Alice");
var publicKey = keyPair.PublicKey;
var commitments = new List <byte[]>
{
"02181b4df800671642e3df9a953a29a4f571acc1bf0714ed5ae714a9804d97079f".ToByteArray(),
"02e8196913323fbb7a34d9455b778e877e1d1fa0205b5949504e55a2d999931366".ToByteArray(),
"02ef67409f09053060e79d8ad5b1fe60690b5eaa35b67f071ca111a0a7edeb6b38".ToByteArray()
};
var aggregatedCommitment = signatureService.AggregateCommitments(commitments, bitmap);
var exception = Assert.Throws <ArgumentOutOfRangeException>(() =>
signatureService.ComputeChallenge(publicKeys, publicKey, aggregatedCommitment, "hello".ToHexEncodedByteArray(), bitmap));
Console.WriteLine(exception.Message);
Assert.IsTrue(exception.Message.StartsWith("[signers] cannot be less than or equal to 0."));
}
