private Boolean CheckSig(Byte[] sig, PublicKey pubKey, UInt32 txInIndex, Script subScript, Transaction tx)
{
HashType hashType = (HashType)sig.Last();
sig = sig.Take(sig.Length - 1).ToArray();
Transaction txCopy = tx.CopyForSigning(txInIndex, subScript, hashType);
Byte[] txHash = txCopy.ToBytes().Concat(new Byte[] { (Byte)hashType, 0x00, 0x00, 0x00 }).ToArray();
txHash = sha256.ComputeHash(sha256.ComputeHash(txHash));
return pubKey.VerifySignature(txHash, sig);
}
