mirror of https://github.com/bitcoin/bitcoin
75 lines
2.8 KiB
C++
75 lines
2.8 KiB
C++
// Copyright (c) 2016-2019 The Bitcoin Core developers
|
|
// Distributed under the MIT software license, see the accompanying
|
|
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
|
|
|
|
#include <bench/bench.h>
|
|
#include <key.h>
|
|
#if defined(HAVE_CONSENSUS_LIB)
|
|
#include <script/bitcoinconsensus.h>
|
|
#endif
|
|
#include <script/script.h>
|
|
#include <script/standard.h>
|
|
#include <streams.h>
|
|
#include <test/util/transaction_utils.h>
|
|
|
|
#include <array>
|
|
|
|
// Microbenchmark for verification of a basic P2WPKH script. Can be easily
|
|
// modified to measure performance of other types of scripts.
|
|
static void VerifyScriptBench(benchmark::State& state)
|
|
{
|
|
const int flags = SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH;
|
|
const int witnessversion = 0;
|
|
|
|
// Keypair.
|
|
CKey key;
|
|
static const std::array<unsigned char, 32> vchKey = {
|
|
{
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1
|
|
}
|
|
};
|
|
key.Set(vchKey.begin(), vchKey.end(), false);
|
|
CPubKey pubkey = key.GetPubKey();
|
|
uint160 pubkeyHash;
|
|
CHash160().Write(pubkey.begin(), pubkey.size()).Finalize(pubkeyHash.begin());
|
|
|
|
// Script.
|
|
CScript scriptPubKey = CScript() << witnessversion << ToByteVector(pubkeyHash);
|
|
CScript scriptSig;
|
|
CScript witScriptPubkey = CScript() << OP_DUP << OP_HASH160 << ToByteVector(pubkeyHash) << OP_EQUALVERIFY << OP_CHECKSIG;
|
|
const CMutableTransaction& txCredit = BuildCreditingTransaction(scriptPubKey, 1);
|
|
CMutableTransaction txSpend = BuildSpendingTransaction(scriptSig, CScriptWitness(), CTransaction(txCredit));
|
|
CScriptWitness& witness = txSpend.vin[0].scriptWitness;
|
|
witness.stack.emplace_back();
|
|
key.Sign(SignatureHash(witScriptPubkey, txSpend, 0, SIGHASH_ALL, txCredit.vout[0].nValue, SigVersion::WITNESS_V0), witness.stack.back());
|
|
witness.stack.back().push_back(static_cast<unsigned char>(SIGHASH_ALL));
|
|
witness.stack.push_back(ToByteVector(pubkey));
|
|
|
|
// Benchmark.
|
|
while (state.KeepRunning()) {
|
|
ScriptError err;
|
|
bool success = VerifyScript(
|
|
txSpend.vin[0].scriptSig,
|
|
txCredit.vout[0].scriptPubKey,
|
|
&txSpend.vin[0].scriptWitness,
|
|
flags,
|
|
MutableTransactionSignatureChecker(&txSpend, 0, txCredit.vout[0].nValue),
|
|
&err);
|
|
assert(err == SCRIPT_ERR_OK);
|
|
assert(success);
|
|
|
|
#if defined(HAVE_CONSENSUS_LIB)
|
|
CDataStream stream(SER_NETWORK, PROTOCOL_VERSION);
|
|
stream << txSpend;
|
|
int csuccess = bitcoinconsensus_verify_script_with_amount(
|
|
txCredit.vout[0].scriptPubKey.data(),
|
|
txCredit.vout[0].scriptPubKey.size(),
|
|
txCredit.vout[0].nValue,
|
|
(const unsigned char*)stream.data(), stream.size(), 0, flags, nullptr);
|
|
assert(csuccess == 1);
|
|
#endif
|
|
}
|
|
}
|
|
|
|
BENCHMARK(VerifyScriptBench, 6300);
|