void TxIOPair::unserialize(const BinaryDataRef& val) { BinaryRefReader brr(val); BitUnpacker<uint8_t> bitunpack(brr); isTxOutFromSelf_ = bitunpack.getBit(); isFromCoinbase_ = bitunpack.getBit(); bool isSpent = bitunpack.getBit(); isMultisig_ = bitunpack.getBit(); isUTXO_ = bitunpack.getBit(); isFromSameBlock_ = bitunpack.getBit(); // We always include the 8-byte value amount_ = brr.get_uint64_t(); setTxOut(val.getSliceRef(9, 8)); if (val.getSize() == 25) setTxIn(val.getSliceRef(17, 8)); //the key always carries the full txout ref /*if (!isSpent) setTxOut(key); else { //spent subssh, txout key setTxOut(val.getSliceRef(9, 8)); //when keyed by txins, the top bit in the tx index is always flipped BinaryData txinKey(key); txinKey.getPtr()[4] &= 0x7F; //last 8 bytes carry the txin key setTxIn(txinKey); }*/ }
BinaryData SigHashDataSegWit::getDataForSigHashAll(const TransactionStub& stub, BinaryDataRef subScript, unsigned inputIndex) { //grab subscript auto lastCSoffset = stub.getLastCodeSeparatorOffset(inputIndex); auto subScriptLen = subScript.getSize() - lastCSoffset; auto&& subscript = subScript.getSliceRef(lastCSoffset, subScriptLen); //pre state computePreState(stub); //serialize hashdata BinaryWriter hashdata; //version hashdata.put_uint32_t(stub.getVersion()); //hashPrevouts hashdata.put_BinaryData(hashPrevouts_); //hashSequence hashdata.put_BinaryData(hashSequence_); //outpoint hashdata.put_BinaryDataRef(stub.getOutpoint(inputIndex)); //script code hashdata.put_uint8_t(subScriptLen); hashdata.put_BinaryDataRef(subscript); //value hashdata.put_uint64_t(stub.getOutpointValue(inputIndex)); //sequence hashdata.put_uint32_t(stub.getTxInSequence(inputIndex)); //hashOutputs hashdata.put_BinaryData(hashOutputs_); //nLocktime hashdata.put_uint32_t(stub.getLockTime()); //sighash type hashdata.put_uint32_t(1); return hashdata.getData(); }
BinaryData SigHashDataLegacy::getDataForSigHashAll(const TransactionStub& stub, BinaryDataRef subScript, unsigned inputIndex) { //grab subscript auto lastCSoffset = stub.getLastCodeSeparatorOffset(inputIndex); auto subScriptLen = subScript.getSize() - lastCSoffset; auto&& presubscript = subScript.getSliceRef(lastCSoffset, subScriptLen); //tokenize op_cs chunks auto&& tokens = tokenize(presubscript, OP_CODESEPARATOR); BinaryData subscript; if (tokens.size() == 1) { subscript = move(presubscript); } else { for (auto& token : tokens) { subscript.append(token); } } //isolate outputs auto&& serializedOutputs = stub.getSerializedOutputScripts(); //isolate inputs auto&& txinsData = stub.getTxInsData(); auto txin_count = txinsData.size(); BinaryWriter strippedTxins; for (unsigned i=0; i < txin_count; i++) { strippedTxins.put_BinaryData(txinsData[i].outputHash_); strippedTxins.put_uint32_t(txinsData[i].outputIndex_); if (inputIndex != i) { //put empty varint strippedTxins.put_var_int(0); //and sequence strippedTxins.put_uint32_t(txinsData[i].sequence_); } else { //scriptsig strippedTxins.put_var_int(subscript.getSize()); strippedTxins.put_BinaryData(subscript); //sequence strippedTxins.put_uint32_t(txinsData[i].sequence_); } } //wrap it up BinaryWriter scriptSigData; //version scriptSigData.put_uint32_t(stub.getVersion()); //txin count scriptSigData.put_var_int(txin_count); //txins scriptSigData.put_BinaryData(strippedTxins.getData()); //txout count scriptSigData.put_var_int(stub.getTxOutCount()); //txouts scriptSigData.put_BinaryData(serializedOutputs); //locktime scriptSigData.put_uint32_t(stub.getLockTime()); //sighashall scriptSigData.put_uint32_t(1); return BinaryData(scriptSigData.getData()); }