public TransactionSignature SignOffer(OfferInformation offerInformation)
{
if (offerInformation == null)
{
throw new ArgumentNullException(nameof(offerInformation));
}
AssertState(SolverClientStates.WaitingOffer);
InternalState.FulfillKey = offerInformation.FulfillKey;
InternalState.OfferTransactionFee = offerInformation.Fee;
Transaction tx = CreateUnsignedOfferTransaction();
var signature = tx.Inputs.AsIndexedInputs().First().Sign(InternalState.EscrowKey, InternalState.EscrowedCoin, SigHash.All);
InternalState.Status = SolverClientStates.WaitingPuzzleSolutions;
return(signature);
}
public TransactionSignature SignOffer(OfferInformation offerInformation)
{
if (offerInformation == null)
{
throw new ArgumentNullException(nameof(offerInformation));
}
AssertState(SolverClientStates.WaitingOffer);
var offerScript = new OfferScriptPubKeyParameters
{
Hashes = _PuzzleElements.OfType <RealPuzzle>().Select(p => p.Commitment.KeyHash).ToArray(),
FulfillKey = offerInformation.FulfillKey,
Expiration = EscrowScriptPubKeyParameters.GetFromCoin(InternalState.EscrowedCoin).LockTime,
RedeemKey = InternalState.EscrowKey.PubKey
}.ToScript();
var escrowCoin = InternalState.EscrowedCoin;
var txOut = new TxOut(escrowCoin.Amount - offerInformation.Fee, offerScript.WitHash.ScriptPubKey.Hash);
var offerCoin = new Coin(escrowCoin.Outpoint, txOut).ToScriptCoin(offerScript);
Transaction tx = new Transaction();
tx.Inputs.Add(new TxIn(escrowCoin.Outpoint));
tx.Outputs.Add(offerCoin.TxOut);
var escrow = EscrowScriptPubKeyParameters.GetFromCoin(escrowCoin);
escrowCoin = escrowCoin.Clone();
escrowCoin.OverrideScriptCode(escrow.GetInitiatorScriptCode());
var signature = tx.Inputs.AsIndexedInputs().First().Sign(InternalState.EscrowKey, escrowCoin, SigHash.All);
InternalState.OfferCoin = offerCoin;
InternalState.Status = SolverClientStates.WaitingPuzzleSolutions;
return(signature);
}
