public WitScript GenerateWitScript(TransactionSignature signature, PubKey publicKey)
{
if (publicKey == null)
{
throw new ArgumentNullException(nameof(publicKey));
}
return(new WitScript(
signature == null ? OpcodeType.OP_0 : Op.GetPushOp(signature.ToBytes()),
Op.GetPushOp(publicKey.ToBytes())
));
}
public Key Derivate(byte[] cc, uint nChild, out byte[] ccChild)
{
byte[] l = null;
if ((nChild >> 31) == 0)
{
var pubKey = PubKey.ToBytes();
l = Hashes.BIP32Hash(cc, nChild, pubKey[0], pubKey.SafeSubarray(1));
}
else
{
l = Hashes.BIP32Hash(cc, nChild, 0, this.ToBytes());
}
var ll = l.SafeSubarray(0, 32);
var lr = l.SafeSubarray(32, 32);
ccChild = lr;
var parse256LL = new BigInteger(1, ll);
var kPar = new BigInteger(1, vch);
var N = ECKey.CURVE.N;
if (parse256LL.CompareTo(N) >= 0)
{
throw new InvalidOperationException("You won a prize ! this should happen very rarely. Take a screenshot, and roll the dice again.");
}
var key = parse256LL.Add(kPar).Mod(N);
if (key == BigInteger.Zero)
{
throw new InvalidOperationException("You won the big prize ! this has probability lower than 1 in 2^127. Take a screenshot, and roll the dice again.");
}
var keyBytes = key.ToByteArrayUnsigned();
if (keyBytes.Length < 32)
{
keyBytes = new byte[32 - keyBytes.Length].Concat(keyBytes).ToArray();
}
return(new Key(keyBytes));
}
public Script GenerateScriptPubKey(PubKey pubkey)
{
return(GenerateScriptPubKey(pubkey.ToBytes(true)));
}