public void TestSecp256k1()
{
var priKey = Secp256k1.GeneratePrivateKey();
var pubKey = Secp256k1.DerivePublicKey(priKey);
var msgHash = Keccack256.CalculateHash("hello world");
var signature = Secp256k1.Sign(msgHash, priKey);
var recoveredPubKey = Secp256k1.RecoverPublickey(Keccack256.CalculateHash("hello world"), signature);
Assert.True(pubKey.SequenceEqual(recoveredPubKey));
}