public async Task <Transaction> SignTransaction(Wallet wallet, Transaction transaction, SigHashType sigHashType, bool ignoreKeyNotFound = false)
{
foreach (var input in transaction.Inputs)
{
var priorOutput = await fetcher.FetchPriorOutput(input);
var scriptType = scriptClassifier.GetScriptType(priorOutput.ScriptPubKey);
var signer = signerMap[scriptType];
if (signer != null)
{
try
{
var sigScript = await signer.CreateSigScript(wallet, transaction, input, sigHashType);
transaction = transaction.CloneWithReplacedSigScript(input, sigScript);
}
catch (PrivateKeyNotFoundException)
{
if (!ignoreKeyNotFound)
{
throw;
}
}
}
else if (!ignoreKeyNotFound)
{
throw new InvalidOperationException($"Unknown script type for prior output {input.PreviousTransaction}:{input.PreviousIndex}");
}
}
return(transaction);
}
async Task <bool> InternalVerify(Transaction transaction, TransactionInput input)
{
var priorOutput = await fetcher.FetchPriorOutput(input);
var script = new Script(input.SigScript, priorOutput.ScriptPubKey);
var sigHash = hasher.ComputeSigHash(transaction, input, priorOutput, SigHashType.All);
return(evaluator.Evaluate(script.Commands, sigHash));
}
public async Task <byte[]> ComputeSigHash(Transaction transaction, TransactionInput input, SigHashType sigHashType)
{
var priorOutput = await fetcher.FetchPriorOutput(input);
return(ComputeSigHash(transaction, input, priorOutput, sigHashType));
}