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.VerifyAggregate(publicKeys, hashes, aggregateSignature, domain1);
Console.WriteLine("Verify: {0}", verifySuccess);
verifySuccess.ShouldBeTrue();
}