public StealthPayment(BitcoinStealthAddress address, Key ephemKey, StealthMetadata metadata)
{
Metadata = metadata;
ScriptPubKey = CreatePaymentScript(address.SignatureCount, address.SpendPubKeys, ephemKey, address.ScanPubKey);
if (address.SignatureCount > 1)
{
Redeem = ScriptPubKey;
ScriptPubKey = ScriptPubKey.Hash.ScriptPubKey;
}
SetStealthKeys();
}
public static StealthPayment[] GetPayments(Transaction transaction, BitcoinStealthAddress address, Key scan)
{
List <StealthPayment> result = new List <StealthPayment>();
for (int i = 0; i < transaction.Outputs.Count - 1; i++)
{
var metadata = StealthMetadata.TryParse(transaction.Outputs[i].ScriptPubKey);
if (metadata != null && (address == null || address.Prefix.Match(metadata.BitField)))
{
var scriptPubKey = transaction.Outputs[i + 1].ScriptPubKey;
var scriptId = PayToScriptHashTemplate.Instance.ExtractScriptPubKeyParameters(scriptPubKey);
Script expectedScriptPubKey = address == null ? scriptPubKey : null;
Script redeem = null;
if (scriptId != null)
{
if (address == null)
{
throw new ArgumentNullException("address");
}
redeem = CreatePaymentScript(address, metadata.EphemKey, scan);
expectedScriptPubKey = redeem.Hash.ScriptPubKey;
if (expectedScriptPubKey != scriptPubKey)
{
continue;
}
}
var payment = new StealthPayment(scriptPubKey, redeem, metadata);
if (scan != null)
{
if (address != null && payment.StealthKeys.Length != address.SpendPubKeys.Length)
{
continue;
}
if (expectedScriptPubKey == null)
{
expectedScriptPubKey = CreatePaymentScript(address, metadata.EphemKey, scan);
}
if (expectedScriptPubKey != scriptPubKey)
{
continue;
}
}
result.Add(payment);
}
}
return(result.ToArray());
}
public static Script CreatePaymentScript(BitcoinStealthAddress address, PubKey ephemKey, Key scan)
{
return(CreatePaymentScript(address.SignatureCount, address.SpendPubKeys.Select(p => p.UncoverReceiver(scan, ephemKey)).ToArray()));
}