/**
* Create a program that satisfies a pay-to-script hashed OP_CHECKMULTISIG program. If given
* signature list is null, incomplete scriptSig will be created with OP_0 instead of signatures
*/
public static Script createP2SHMultiSigInputScript(
@Nullable List<TransactionSignature> signatures, Script multisigProgram) {
List<byte[]> sigs = new ArrayList<byte[]>();
if (signatures == null) {
// create correct number of empty signatures
int numSigs = multisigProgram.getNumberOfSignaturesRequiredToSpend();
for (int i = 0; i < numSigs; i++) sigs.add(new byte[] {});
} else {
for (TransactionSignature signature : signatures) {
sigs.add(signature.encodeToPeercoin());
}
}
return createMultiSigInputScriptBytes(sigs, multisigProgram.getProgram());
}
/** Creates a scriptPubKey for the given redeem script. */
public static Script createP2SHOutputScript(Script redeemScript) {
byte[] hash = Utils.sha256hash160(redeemScript.getProgram());
return ScriptBuilder.createP2SHOutputScript(hash);
}