public void Case06AggregateSignatures(byte[][] signatures, byte[] expected)
{
// Arrange
var inputSpan = new Span <byte>(new byte[signatures.Length * 96]);
Console.WriteLine("Input: [{0}]", signatures.Length);
for (var index = 0; index < signatures.Length; index++)
{
signatures[index].CopyTo(inputSpan.Slice(index * 96));
Console.WriteLine("Signature({0}): [{1}] {2}", index, signatures[index].Length, HexMate.Convert.ToHexString(signatures[index]));
}
// Act
using var bls = new BLSHerumi(new BLSParameters());
var result = new byte[96];
var success = bls.TryAggregateSignatures(inputSpan, result, out var bytesWritten);
Console.WriteLine("Output:");
Console.WriteLine("Combined: {0} [{1}] {2}", success, bytesWritten, HexMate.Convert.ToHexString(result));
// Assert
result.ShouldBe(expected);
}
public void BlsRoundtripAggregatePublicKeyVerifySharedHash()
{
// Arrange
var privateKey1 = HexMate.Convert.FromHexString(PrivateKeys[1]);
var privateKey2 = HexMate.Convert.FromHexString(PrivateKeys[2]);
var sharedMessageHash = MessageHashes[1];
var domain1 = Domains[1];
Console.WriteLine("Input:");
Console.WriteLine("Private Key 1: [{0}] {1}", privateKey1.Length, HexMate.Convert.ToHexString(privateKey1));
Console.WriteLine("Private Key 2: [{0}] {1}", privateKey2.Length, HexMate.Convert.ToHexString(privateKey2));
Console.WriteLine("MessageHash 1: [{0}] {1}", sharedMessageHash.Length, HexMate.Convert.ToHexString(sharedMessageHash));
Console.WriteLine("Domain: [{0}] {1}", domain1.Length, HexMate.Convert.ToHexString(domain1));
// Sign 1
using var bls1 = new BLSHerumi(new BLSParameters()
{
PrivateKey = privateKey1
});
var signature1 = new byte[96];
_ = bls1.TrySignHash(sharedMessageHash, signature1.AsSpan(), out var _, domain1);
Console.WriteLine("Signature 1: [{0}] {1}", signature1.Length, HexMate.Convert.ToHexString(signature1));
var publicKey1 = new byte[48];
_ = bls1.TryExportBlsPublicKey(publicKey1, out var _);
Console.WriteLine("Public Key 1: [{0}] {1}", publicKey1.Length, HexMate.Convert.ToHexString(publicKey1));
// Sign 2
using var bls2 = new BLSHerumi(new BLSParameters()
{
PrivateKey = privateKey2
});
var signature2 = new byte[96];
_ = bls2.TrySignHash(sharedMessageHash, signature2.AsSpan(), out var _, domain1);
Console.WriteLine("Signature 2: [{0}] {1}", signature2.Length, HexMate.Convert.ToHexString(signature2));
var publicKey2 = new byte[48];
_ = bls2.TryExportBlsPublicKey(publicKey2, out var _);
Console.WriteLine("Public Key 2: [{0}] {1}", publicKey2.Length, HexMate.Convert.ToHexString(publicKey2));
// Aggregate public keys
var publicKeys = new Span <byte>(new byte[48 * 2]);
publicKey1.CopyTo(publicKeys);
publicKey2.CopyTo(publicKeys.Slice(48));
using var blsAggregateKeys = new BLSHerumi(new BLSParameters());
var aggregatePublicKey = new byte[48];
blsAggregateKeys.TryAggregatePublicKeys(publicKeys, aggregatePublicKey, out var _);
Console.WriteLine("Aggregate Public Key: [{0}] {1}", aggregatePublicKey.Length, HexMate.Convert.ToHexString(aggregatePublicKey));
// Aggregate signatures
var signatures = new Span <byte>(new byte[96 * 2]);
signature1.CopyTo(signatures);
signature2.CopyTo(signatures.Slice(96));
using var blsAggregate = new BLSHerumi(new BLSParameters());
var aggregateSignature = new byte[96];
blsAggregate.TryAggregateSignatures(signatures, aggregateSignature, out var _);
Console.WriteLine("Aggregate Signature: [{0}] {1}", aggregateSignature.Length, HexMate.Convert.ToHexString(aggregateSignature));
// Verify aggregates
// i.e. the combined aggregatePublicKey / aggregateSignature are a valid pair
var aggregatePublicKeyParameters = new BLSParameters()
{
PublicKey = aggregatePublicKey
};
using var blsVerify = new BLSHerumi(aggregatePublicKeyParameters);
var verifySuccess = blsVerify.VerifyHash(sharedMessageHash, aggregateSignature, domain1);
Console.WriteLine("Verify: {0}", verifySuccess);
verifySuccess.ShouldBeTrue();
}
public void BlsRoundtripSignAndAggregateVerify()
{
// Arrange
var privateKey1 = HexMate.Convert.FromHexString(PrivateKeys[1]);
var privateKey2 = HexMate.Convert.FromHexString(PrivateKeys[2]);
var messageHash1 = MessageHashes[1];
var messageHash2 = MessageHashes[2];
var domain1 = Domains[1];
Console.WriteLine("Input:");
Console.WriteLine("Private Key 1: [{0}] {1}", privateKey1.Length, HexMate.Convert.ToHexString(privateKey1));
Console.WriteLine("MessageHash 1: [{0}] {1}", messageHash1.Length, HexMate.Convert.ToHexString(messageHash1));
Console.WriteLine("Private Key 2: [{0}] {1}", privateKey2.Length, HexMate.Convert.ToHexString(privateKey2));
Console.WriteLine("MessageHash 2: [{0}] {1}", messageHash2.Length, HexMate.Convert.ToHexString(messageHash2));
Console.WriteLine("Domain: [{0}] {1}", domain1.Length, HexMate.Convert.ToHexString(domain1));
// Sign 1
using var bls1 = new BLSHerumi(new BLSParameters()
{
PrivateKey = privateKey1
});
var signature1 = new byte[96];
_ = bls1.TrySignHash(messageHash1, signature1.AsSpan(), out var _, domain1);
Console.WriteLine("Signature 1: [{0}] {1}", signature1.Length, HexMate.Convert.ToHexString(signature1));
var publicKey1 = new byte[48];
_ = bls1.TryExportBlsPublicKey(publicKey1, out var _);
Console.WriteLine("Public Key 1: [{0}] {1}", publicKey1.Length, HexMate.Convert.ToHexString(publicKey1));
// Sign 2
using var bls2 = new BLSHerumi(new BLSParameters()
{
PrivateKey = privateKey2
});
var signature2 = new byte[96];
_ = bls2.TrySignHash(messageHash2, signature2.AsSpan(), out var _, domain1);
Console.WriteLine("Signature 2: [{0}] {1}", signature2.Length, HexMate.Convert.ToHexString(signature2));
var publicKey2 = new byte[48];
_ = bls2.TryExportBlsPublicKey(publicKey2, out var _);
Console.WriteLine("Public Key 2: [{0}] {1}", publicKey2.Length, HexMate.Convert.ToHexString(publicKey2));
// Aggregate signatures
var signatures = new Span <byte>(new byte[96 * 2]);
signature1.CopyTo(signatures);
signature2.CopyTo(signatures.Slice(96));
using var blsAggregate = new BLSHerumi(new BLSParameters());
var aggregateSignature = new byte[96];
blsAggregate.TryAggregateSignatures(signatures, aggregateSignature, out var _);
Console.WriteLine("Aggregate Signature: [{0}] {1}", aggregateSignature.Length, HexMate.Convert.ToHexString(aggregateSignature));
// Aggregate verify
using var blsVerify = new BLSHerumi(new BLSParameters());
var publicKeys = new Span <byte>(new byte[48 * 2]);
publicKey1.CopyTo(publicKeys);
publicKey2.CopyTo(publicKeys.Slice(48));
var hashes = new Span <byte>(new byte[32 * 2]);
messageHash1.CopyTo(hashes);
messageHash2.CopyTo(hashes.Slice(32));
var verifySuccess = blsVerify.AggregateVerifyHashes(publicKeys, hashes, aggregateSignature, domain1);
Console.WriteLine("Verify: {0}", verifySuccess);
verifySuccess.ShouldBeTrue();
}
public void SignTwoDataAndAggregateVerify()
{
// Arrange
var privateKey1 = HexMate.Convert.FromHexString(PrivateKeys[1]);
var privateKey2 = HexMate.Convert.FromHexString(PrivateKeys[2]);
var messageData1 = MessageData[1];
var messageData2 = MessageData[2];
Console.WriteLine("Input:");
Console.WriteLine("Private Key 1: [{0}] {1}", privateKey1.Length, HexMate.Convert.ToHexString(privateKey1));
Console.WriteLine("MessageData 1: [{0}] {1}", messageData1.Length, HexMate.Convert.ToHexString(messageData1));
Console.WriteLine("Private Key 2: [{0}] {1}", privateKey2.Length, HexMate.Convert.ToHexString(privateKey2));
Console.WriteLine("MessageData 2: [{0}] {1}", messageData2.Length, HexMate.Convert.ToHexString(messageData2));
// Sign 1
using var bls1 = new BLSHerumi(new BLSParameters()
{
PrivateKey = privateKey1
});
var signature1 = new byte[96];
_ = bls1.TrySignData(messageData1, signature1.AsSpan(), out var _);
Console.WriteLine("Signature 1: [{0}] {1}", signature1.Length, HexMate.Convert.ToHexString(signature1));
var publicKey1 = new byte[48];
_ = bls1.TryExportBlsPublicKey(publicKey1, out var _);
Console.WriteLine("Public Key 1: [{0}] {1}", publicKey1.Length, HexMate.Convert.ToHexString(publicKey1));
// Sign 2
using var bls2 = new BLSHerumi(new BLSParameters()
{
PrivateKey = privateKey2
});
var signature2 = new byte[96];
_ = bls2.TrySignData(messageData2, signature2.AsSpan(), out var _);
Console.WriteLine("Signature 2: [{0}] {1}", signature2.Length, HexMate.Convert.ToHexString(signature2));
var publicKey2 = new byte[48];
_ = bls2.TryExportBlsPublicKey(publicKey2, out var _);
Console.WriteLine("Public Key 2: [{0}] {1}", publicKey2.Length, HexMate.Convert.ToHexString(publicKey2));
// Concatenate public keys
var publicKeys = new Span <byte>(new byte[48 * 2]);
publicKey1.CopyTo(publicKeys);
publicKey2.CopyTo(publicKeys.Slice(48));
// Aggregate signatures
var signatures = new Span <byte>(new byte[96 * 2]);
signature1.CopyTo(signatures);
signature2.CopyTo(signatures.Slice(96));
using var blsAggregate = new BLSHerumi(new BLSParameters());
var aggregateSignature = new byte[96];
blsAggregate.TryAggregateSignatures(signatures, aggregateSignature, out var _);
Console.WriteLine("Aggregate Signature: [{0}] {1}", aggregateSignature.Length, HexMate.Convert.ToHexString(aggregateSignature));
// Concatenate data
var data = new Span <byte>(new byte[32 * 2]);
messageData1.CopyTo(data);
messageData2.CopyTo(data.Slice(32));
// Aggregate verify
using var blsVerify = new BLSHerumi(new BLSParameters());
var verifySuccess = blsVerify.AggregateVerifyData(publicKeys, data, aggregateSignature);
Console.WriteLine("Verify: {0}", verifySuccess);
verifySuccess.ShouldBeTrue();
}