public void Ed25519PhTestVectors(string message, string signature, string publicKey, string context, bool expectedResult)
{
var signatureAndMessage = signature.HexToByteArray();
byte[] signatureBytes = new ArraySegment <byte>(signatureAndMessage, 0, _wrapper.SignatureLength).ToArray();
byte[] publicKeyBytes = publicKey.HexToByteArray();
byte[] messageBytes = message.HexToByteArray();
byte[] contextBytes = context.HexToByteArray();
var sig = _wrapper.GetSignatureFromBytes(signatureBytes, publicKeyBytes);
var isVerified = _wrapper.Verify(sig, messageBytes, contextBytes);
isVerified.Should().Be(expectedResult);
}
private bool ValidateTransactionSignature(PublicEntry transaction)
{
if (transaction.Signature.RawBytes == ByteString.Empty)
{
_logger.Error("Transaction signature is null");
return(false);
}
var transactionSignature = _cryptoContext.GetSignatureFromBytes(transaction.Signature.RawBytes.ToByteArray(),
transaction.SenderAddress.ToByteArray());
var signingContext = transaction.Signature.SigningContext.ToByteArray();
// we need to verify the signature matches the message, but transactionBroadcast contains the signature and original data,
// passing message+sig will mean your verifying an incorrect message and always return false, so just null the sig.
var transactionClone = transaction.Clone();
transactionClone.Signature = null;
if (_cryptoContext.Verify(transactionSignature, transactionClone.ToByteArray(), signingContext))
{
return(true);
}
_logger.Information(
"Transaction Signature {signature} invalid.",
transactionSignature);
return(false);
}
public void TestFailureSigningVerification()
{
var key1 = _context.GeneratePrivateKey();
var data = Encoding.UTF8.GetBytes("Testing testing 1 2 3");
var signingContext = Encoding.UTF8.GetBytes("Testing testing 1 2 3 context");
var signature = _context.Sign(key1, data, signingContext);
var key2 = _context.GeneratePrivateKey();
var publicKey2 = _context.GetPublicKeyFromPrivateKey(key2);
var invalidSignature = _context.GetSignatureFromBytes(signature.SignatureBytes, publicKey2.Bytes);
_context.Verify(invalidSignature, data, signingContext)
.Should().BeFalse("signature should not verify with incorrect key");
}
public (byte[], bool) Run(byte[] inputData)
{
if (inputData.Length != 160)
{
return(Bytes.Empty, false);
}
byte[] message = inputData.AsSpan().Slice(0, 32).ToArray();
byte[] signatureBytes = inputData.AsSpan().Slice(32, 64).ToArray();
byte[] signingContext = inputData.AsSpan().Slice(96, 32).ToArray();
byte[] publicKey = inputData.AsSpan().Slice(128, 32).ToArray();
ISignature signature = _cryptoContext.GetSignatureFromBytes(signatureBytes, publicKey);
return(_cryptoContext.Verify(signature, message, signingContext)
? (new byte[] { 1 }, true)
: (new byte[] { 0 }, true));
}
private bool ValidateTransactionSignature(TransactionBroadcast transactionBroadcast, NetworkType networkType)
{
if (transactionBroadcast.Signature.RawBytes == ByteString.Empty)
{
_logger.Error("Transaction signature is null");
return(false);
}
var transactionSignature = _cryptoContext.GetSignatureFromBytes(transactionBroadcast.Signature.RawBytes.ToByteArray(),
transactionBroadcast.PublicEntries.First().Base.SenderPublicKey.ToByteArray());
var transactionWithoutSig = transactionBroadcast.Clone();
transactionWithoutSig.Signature = null;
if (!_cryptoContext.Verify(transactionSignature, transactionWithoutSig.ToByteArray(), transactionBroadcast.Signature.SigningContext.ToByteArray()))
{
return(true);
}
_logger.Information(
"Transaction Signature {signature} invalid.",
transactionSignature);
return(false);
}