protected override async Task <ECDSASignature> SignExternallyAsync(byte[] hash)
{
var path = GetPath();
var firstRequest = new EthereumAppSignatureRequest(true, path.Concat(hash).ToArray());
var response = await LedgerManager.SendRequestAsync <EthereumAppSignatureResponse, EthereumAppSignatureRequest>(firstRequest);
var signature = ECDSASignatureFactory.FromComponents(response.SignatureR, response.SignatureS);
signature.V = new BigInteger(response.SignatureV).ToBytesForRLPEncoding();
return(signature);
}
public async Task SignEthereumTransaction()
{
await GetLedger();
_LedgerManager.SetCoinNumber(60);
byte[] rlpEncodedTransactionData = { 227, 128, 132, 59, 154, 202, 0, 130, 82, 8, 148, 139, 6, 158, 207, 123, 242, 48, 225, 83, 184, 237, 144, 59, 171, 242, 68, 3, 204, 162, 3, 128, 128, 4, 128, 128 };
var derivationData = Helpers.GetDerivationPathData(new AddressPath(_LedgerManager.CurrentCoin.IsSegwit, _LedgerManager.CurrentCoin.CoinNumber, 0, false, 0));
// Create base class like GetPublicKeyResponseBase and make the method more like GetAddressAsync
var firstRequest = new EthereumAppSignatureRequest(true, derivationData.Concat(rlpEncodedTransactionData).ToArray());
var response = await _LedgerManager.SendRequestAsync <EthereumAppSignatureResponse, EthereumAppSignatureRequest>(firstRequest);
Assert.True(response.IsSuccess, $"The response failed with a status of: {response.StatusMessage} ({response.ReturnCode})");
Assert.True(response.SignatureR?.Length == 32);
Assert.True(response.SignatureS?.Length == 32);
}
private async Task SignEtheremAsync(byte[] rlpEncodedTransactionData, bool isTransaction)
{
_LedgerManager.SetCoinNumber(60);
var derivationData = Helpers.GetDerivationPathData(new BIP44AddressPath(_LedgerManager.CurrentCoin.IsSegwit, _LedgerManager.CurrentCoin.CoinNumber, 0, false, 0));
var concatenatedData = derivationData.Concat(rlpEncodedTransactionData).ToArray();
Console.WriteLine($"Input data: {HexDataToString(concatenatedData)}");
var firstRequest = new EthereumAppSignatureRequest(isTransaction, concatenatedData);
var response = await _LedgerManager.SendRequestAsync <EthereumAppSignatureResponse, EthereumAppSignatureRequest>(firstRequest);
Assert.IsTrue(response.IsSuccess, $"The response failed with a status of: {response.StatusMessage} ({response.ReturnCode})");
Assert.IsTrue(response.SignatureR?.Length == 32);
Assert.IsTrue(response.SignatureS?.Length == 32);
Console.WriteLine($"R:{HexDataToString(response.SignatureR)}\r\nS:{HexDataToString(response.SignatureS)}\r\nV:{response.SignatureV}");
}
