Any help you can give is much appreciated. Here is the code, I haven't changed any of the internals of the library, and I have used Ditch you can find the link here
userPrivateKeys = new List
{
Base58.GetBytes(WIF)
};
Convert the keys into a byte array
private static byte[] Base58CheckDecode(string data)
{
var s = Decode(data);
var dec = CutLastBytes(s, 4);
//var checksum = SHA256.Instance.DoubleHash(dec);
//for (int i = 0; i < 4; i++)
// Assert.IsTrue(checksum[i] == s[s.Length - 4 + i]);
return CutFirstBytes(dec, 1);
}
private static byte[] Decode(string base58)
{
// Decode Base58 string to BigInteger
BigInteger intData = 0;
for (var i = 0; i < base58.Length; i++)
{
var digit = Digits.IndexOf(base58[i]); //Slow
if (digit < 0)
throw new FormatException($"Invalid Base58 character `{base58[i]}` at position {i}");
intData = intData * 58 + digit;
}
// Encode BigInteger to byte[]
// Leading zero bytes get encoded as leading `1` characters
var leadingZeroCount = base58.TakeWhile(c => c == '1').Count();
var leadingZeros = Enumerable.Repeat((byte)0, leadingZeroCount);
var bytesWithoutLeadingZeros =
intData.ToByteArray()
.Reverse()// to big endian
.SkipWhile(b => b == 0);//strip sign byte
var result = leadingZeros.Concat(bytesWithoutLeadingZeros).ToArray();
return result;
}
private static byte[] CutFirstBytes(byte[] source, int cutCount)
{
var rez = new byte[source.Length - cutCount];
Array.Copy(source, cutCount, rez, 0, rez.Length);
return rez;
}
Using the Cryptography.ECDSA library to sign the payload
var sig = Secp256k1Manager.SignCompressedCompact(data, userPrivateKey);
RPC Call Message
{"method":"call","params":[3,"broadcast_transaction",[{"ref_block_num":34752,"ref_block_prefix":2723778811,"expiration":"2017-08-01T09:50:54","operations":[["vote",{"voter":"nosajj","author":"jerrybanfield","permlink":"90 -paths-to-profit-online","weight":10000}]],"extensions":[],"signatures":["SIGNATURE"]}]],"jsonrpc":"2.0","id":1}
The returned error message
13 N5boost16exception_detail10clone_implINS0_19error_info_injectorISt12out_of_rangeEEEE: unknown key
unknown key