private async Task<string> SignMessage(byte[] message, HDWalletProfile profile)
{
uint msgLength = (uint)message.Length;
uint bytesToCopy = Math.Min(0xff - (uint)profile.DerivationData.Length - sizeof(int), msgLength);
var messageChunk = new byte[bytesToCopy + sizeof(int)];
msgLength.ToBytes().CopyTo(messageChunk, 0);
Array.Copy(message, 0, messageChunk, sizeof(int), bytesToCopy);
var output = await SendRequestAsync(EthSignMessage.Request(profile.DerivationData, messageChunk, true));
msgLength -= bytesToCopy;
uint pos = bytesToCopy;
while (msgLength > 0 && IsSuccess(output.StatusCode))
{
bytesToCopy = Math.Min(0xff, msgLength);
messageChunk = new byte[bytesToCopy];
Array.Copy(message, pos, messageChunk, 0, bytesToCopy);
output = await SendRequestAsync(EthSignMessage.Request(profile.DerivationData, messageChunk, false));
msgLength -= bytesToCopy;
pos += bytesToCopy;
}
if (IsSuccess(output.StatusCode))
{
return EthSignMessage.GetStringSignature(output.Data);
}
return null;
}
private async Task<string> SignTransaction(byte[] rlpEncodedTransaction, HDWalletProfile profile)
{
uint txLength = (uint)rlpEncodedTransaction.Length;
uint bytesToCopy = Math.Min(0xff - (uint)profile.DerivationData.Length, txLength);
var txChunk = new byte[bytesToCopy];
Array.Copy(rlpEncodedTransaction, 0, txChunk, 0, bytesToCopy);
var output = await SendRequestAsync(EthSignTransaction.Request(profile.DerivationData, txChunk, true));
txLength -= bytesToCopy;
uint pos = bytesToCopy;
while (txLength > 0 && IsSuccess(output.StatusCode))
{
bytesToCopy = Math.Min(0xff, txLength);
txChunk = new byte[bytesToCopy];
Array.Copy(rlpEncodedTransaction, pos, txChunk, 0, bytesToCopy);
output = await SendRequestAsync(EthSignTransaction.Request(profile.DerivationData, txChunk, false));
txLength -= bytesToCopy;
pos += bytesToCopy;
}
if (IsSuccess(output.StatusCode))
{
return EthSignTransaction.GetSignature(output.Data);
}
return null;
}
private async Task <string> SignMessage(byte[] message, HDWalletProfile profile)
{
var output = await SendRequestAsync(EthSignMessage.Request(profile.DerivationIndices, message));
return(EthSignMessage.GetRLPEncoded(output, message));
}
private async Task <string> SignTransaction(byte[] rlpEncodedTransaction, HDWalletProfile profile)
{
var output = await SendRequestAsync(EthSignTransaction.Request(profile.DerivationIndices, rlpEncodedTransaction));
return(EthSignTransaction.GetSignature(output));
}
