public void Schnorrsig_Verify_Batch()
{
using (var secp256k1 = new Secp256k1())
using (var schnorrSig = new SchnorrSig())
{
var signatures = new List <byte[]>();
var messages = new List <byte[]>();
var publicKeys = new List <byte[]>();
for (int i = 0; i < 10; i++)
{
var keyPair = secp256k1.GenerateKeyPair();
var msg = $"Message for signing {i}";
var msgBytes = Encoding.UTF8.GetBytes(msg);
var msgHash = System.Security.Cryptography.SHA256.Create().ComputeHash(msgBytes);
var sig = schnorrSig.SchnorrsigSign(msgHash, keyPair.privateKey);
Assert.NotNull(sig);
Assert.InRange(sig.Length, 0, Constant.SIGNATURE_SIZE);
signatures.Add(sig);
messages.Add(msgHash);
publicKeys.Add(keyPair.publicKey);
}
var valid = schnorrSig.SchnorrsigVerifyBatch(signatures, messages, publicKeys);
Assert.True(valid);
}
}
public void Schnorrsig_Wrong_Verify()
{
using (var secp256k1 = new Secp256k1())
using (var schnorrSig = new SchnorrSig())
{
var keyPair = secp256k1.GenerateKeyPair();
var msg = "Message for signing";
var msgBytes = Encoding.UTF8.GetBytes(msg);
var msgHash = System.Security.Cryptography.SHA256.Create().ComputeHash(msgBytes);
var sig = schnorrSig.SchnorrsigSign(msgHash, keyPair.privateKey);
Assert.NotNull(sig);
Assert.InRange(sig.Length, 0, Constant.SIGNATURE_SIZE);
msg = "Wrong message for signing";
msgBytes = Encoding.UTF8.GetBytes(msg);
msgHash = System.Security.Cryptography.SHA256.Create().ComputeHash(msgBytes);
var valid = schnorrSig.SchnorrsigVerify(sig, msgHash, keyPair.publicKey);
Assert.False(valid);
}
}
public void Schnorrsig_Serialize()
{
using (var secp256k1 = new Secp256k1())
using (var schnorrSig = new SchnorrSig())
{
var keyPair = secp256k1.GenerateKeyPair();
var msg = "Message for signing";
var msgBytes = Encoding.UTF8.GetBytes(msg);
var msgHash = System.Security.Cryptography.SHA256.Create().ComputeHash(msgBytes);
var sigIn = schnorrSig.SchnorrsigSign(msgHash, keyPair.privateKey);
var sigOut = schnorrSig.SchnorrsigSerialize(sigIn);
Assert.NotNull(sigOut);
Assert.InRange(sigOut.Length, 0, Constant.SIGNATURE_SIZE);
}
}