public override async Task <Script> CreateSigScript(Wallet wallet, Transaction transaction, TransactionInput input, SigHashType sigHashType)
{
var priorOutput = await Fetcher.FetchPriorOutput(input);
if (priorOutput.ScriptPubKey.Commands.Count < 1 ||
!(priorOutput.ScriptPubKey.Commands[0] is byte[] sec))
{
throw new FormatException("Unexpected opcode in output script");
}
var privateKey = wallet.FindBy(PublicKey.FromSec(sec));
if (privateKey == null)
{
throw new PrivateKeyNotFoundException("Key not found in wallet");
}
return(await CreateSigScript(privateKey, transaction, input, sigHashType));
}