public void SignatureSwap()
{
var rawTx = Base16.Decode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
var tx = Neo.Core.Transaction.Unserialize(rawTx);
var wif = "KwVG94yjfVg1YKFyRxAGtug93wdRbmLnqqrFV6Yd2CiA9KZDAp4H";
var neoKeys = Phantasma.Neo.Core.NeoKeys.FromWIF(wif);
Assert.IsTrue(tx.witnesses.Any());
var wit = tx.witnesses.First();
var witAddress = wit.ExtractAddress();
var transposedAddress = Address.FromKey(neoKeys);
Assert.IsTrue(transposedAddress.IsUser);
Assert.IsTrue(transposedAddress == witAddress);
var msg = "Hello Phantasma!";
var payload = Encoding.UTF8.GetBytes(msg);
var neoSig = ECDsaSignature.Generate(neoKeys, payload, ECDsaCurve.Secp256r1);
var validateNeoSig = neoSig.Verify(payload, transposedAddress);
Assert.IsTrue(validateNeoSig);
}
public void ECDsaSecP256k1()
{
var address = "0x66571c32d77c4852be4c282eb952ba94efbeac20";
var key = "6f6784731c4e526c97fa6a97b6f22e96f307588c5868bc2c545248bc31207eb1";
Assert.IsTrue(key.Length == 64);
var curve = ECCurve.Secp256k1;
var privateKey = key.HexToByteArray();
var pKey = ECCurve.Secp256k1.G * privateKey;
var publicKey = pKey.EncodePoint(true).ToArray();
var uncompressedPublicKey = pKey.EncodePoint(false).Skip(1).ToArray();
var kak = new Phantasma.Ethereum.Util.Sha3Keccack().CalculateHash(uncompressedPublicKey);
var Address = "0x" + Base16.Encode(kak.Skip(12).ToArray()).ToLower();
Console.WriteLine("Address: " + Address);
Console.WriteLine("address: " + address);
Assert.IsTrue(Address == address);
var msgBytes = Encoding.ASCII.GetBytes("Phantasma");
// CryptoExtensions.SignECDsa()/.VerifySignatureECDsa() tests.
var signature = CryptoExtensions.SignECDsa(msgBytes, privateKey, publicKey, ECDsaCurve.Secp256k1);
Assert.IsNotNull(signature);
Console.WriteLine("CryptoExtensions.SignECDsa() signature: " + Base16.Encode(signature));
var signatureUncompressed = CryptoExtensions.SignECDsa(msgBytes, privateKey, uncompressedPublicKey, ECDsaCurve.Secp256k1);
Assert.IsNotNull(signatureUncompressed);
Assert.IsTrue(CryptoExtensions.VerifySignatureECDsa(msgBytes, signature, publicKey, ECDsaCurve.Secp256k1));
Assert.IsTrue(CryptoExtensions.VerifySignatureECDsa(msgBytes, signature, uncompressedPublicKey, ECDsaCurve.Secp256k1));
// ECDsaSignature.Generate()/ECDsaSignature.Verify() tests.
var ethKeys = Ethereum.EthereumKey.FromPrivateKey(key);
// Verifying previous signature, received from CryptoExtensions.SignECDsa().
var ecdsaSignature = new ECDsaSignature(signature, ECDsaCurve.Secp256k1);
Console.WriteLine("ECDsaSignature() signature: " + Base16.Encode(ecdsaSignature.ToByteArray()));
Assert.IsTrue(ecdsaSignature.Verify(msgBytes, Phantasma.Cryptography.Address.FromKey(ethKeys)));
// Generating new signature with ECDsaSignature.Generate() and verifying it.
var ecdsaSignature2 = ECDsaSignature.Generate(ethKeys, msgBytes, ECDsaCurve.Secp256k1);
Console.WriteLine("ECDsaSignature() signature2: " + Base16.Encode(ecdsaSignature2.ToByteArray()));
Assert.IsTrue(ecdsaSignature.Verify(msgBytes, Phantasma.Cryptography.Address.FromKey(ethKeys)));
}
public Signature Sign(byte[] msg, Func <byte[], byte[], byte[], byte[]> customSignFunction = null)
{
return(ECDsaSignature.Generate(this, msg, ECDsaCurve.Secp256r1));
}
public Signature Sign(byte[] msg)
{
return(ECDsaSignature.Generate(this, msg, ECDsaCurve.Secp256r1));
}