public TrustedBroadcastRequest CreateRedeemTransaction(FeeRate feeRate)
{
if (feeRate == null)
{
throw new ArgumentNullException(nameof(feeRate));
}
var escrow = EscrowScriptPubKeyParameters.GetFromCoin(InternalState.EscrowedCoin);
var escrowCoin = InternalState.EscrowedCoin;
Transaction tx = new Transaction();
tx.LockTime = escrow.LockTime;
tx.Inputs.Add(new TxIn());
//Put a dummy signature and the redeem script
tx.Inputs[0].ScriptSig =
new Script(
Op.GetPushOp(TrustedBroadcastRequest.PlaceholderSignature),
Op.GetPushOp(escrowCoin.Redeem.ToBytes()));
tx.Inputs[0].Witnessify();
tx.Inputs[0].Sequence = 0;
tx.Outputs.Add(new TxOut(escrowCoin.Amount, InternalState.RedeemDestination));
tx.Outputs[0].Value -= feeRate.GetFee(tx.GetVirtualSize());
var redeemTransaction = new TrustedBroadcastRequest
{
Key = InternalState.EscrowKey,
PreviousScriptPubKey = escrowCoin.ScriptPubKey,
Transaction = tx,
KnownPrevious = new Coin[] { escrowCoin }
};
return(redeemTransaction);
}
public TrustedBroadcastRequest CreateRedeemTransaction(FeeRate feeRate, Script redeemDestination)
{
if (feeRate == null)
{
throw new ArgumentNullException(nameof(feeRate));
}
var coin = InternalState.EscrowedCoin;
var escrow = EscrowScriptBuilder.ExtractEscrowScriptPubKeyParameters(coin.Redeem);
Transaction tx = new Transaction();
tx.LockTime = escrow.LockTime;
tx.Inputs.Add(new TxIn(coin.Outpoint));
tx.Inputs[0].Sequence = 0;
tx.Outputs.Add(new TxOut(coin.Amount, redeemDestination));
tx.Inputs[0].ScriptSig = EscrowScriptBuilder.GenerateScriptSig(new TransactionSignature[] { null }) + Op.GetPushOp(coin.Redeem.ToBytes());
var vSize = tx.GetVirtualSize() + 80; // Size without signature + the signature size
tx.Outputs[0].Value -= feeRate.GetFee(vSize);
var redeemTransaction = new TrustedBroadcastRequest
{
Key = InternalState.RedeemKey,
PreviousScriptPubKey = coin.Redeem.Hash.ScriptPubKey,
Transaction = tx
};
//Strip redeem script information so we check if TrustedBroadcastRequest can sign correctly
redeemTransaction.Transaction = redeemTransaction.ReSign(new Coin(coin.Outpoint, coin.TxOut));
return(redeemTransaction);
}