public Task <IEnumerable <string> > Sign(string chainId, IEnumerable <string> requiredKeys, byte[] signBytes,
IEnumerable <string> abiNames = null)
{
var data = new List <byte[]>()
{
Hex.HexToBytes(chainId),
signBytes,
new byte[32]
};
var hash = Sha256Manager.GetHash(SerializationHelper.Combine(data));
return(Task.FromResult(requiredKeys.Select(key =>
{
var sign = Secp256K1Manager.SignCompressedCompact(hash, Keys[key]);
var check = new List <byte[]>()
{
sign, KeyTypeBytes
};
var checksum = Ripemd160Manager.GetHash(SerializationHelper.Combine(check)).Take(4).ToArray();
var signAndChecksum = new List <byte[]>()
{
sign, checksum
};
return "SIG_K1_" + Base58.Encode(SerializationHelper.Combine(signAndChecksum));
})));
}
/// <summary>
/// Calculate request unique hash key
/// </summary>
/// <param name="url">Url to send the request</param>
/// <param name="data">data sent in the body</param>
/// <returns></returns>
public string GetRequestHashKey(string url, object data)
{
var keyBytes = new List <byte[]>()
{
Encoding.UTF8.GetBytes(url),
SerializationHelper.ObjectToByteArray(data)
};
return(Encoding.Default.GetString(Sha256Manager.GetHash(SerializationHelper.Combine(keyBytes))));
}
public void VerifyKeyTypes()
{
var key = CryptoHelper.GenerateKeyPair();
CryptoHelper.PrivKeyStringToBytes(key.PrivateKey);
CryptoHelper.PubKeyStringToBytes(key.PublicKey);
var helloBytes = Encoding.UTF8.GetBytes("Hello world!");
var hash = Sha256Manager.GetHash(helloBytes);
var sign = Secp256K1Manager.SignCompressedCompact(hash, CryptoHelper.GetPrivateKeyBytesWithoutCheckSum(key.PrivateKey));
var check = new List <byte[]>()
{
sign, Encoding.UTF8.GetBytes("K1")
};
var checksum = Ripemd160Manager.GetHash(SerializationHelper.Combine(check)).Take(4).ToArray();
var signAndChecksum = new List <byte[]>()
{
sign, checksum
};
CryptoHelper.SignStringToBytes("SIG_K1_" + Base58.Encode(SerializationHelper.Combine(signAndChecksum)));
}