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Stable release v32.1bitcoin/bitcoin · f0de87f04062 ↗3,020 source files · 47.5 MB stored on the server440 file guides

Release published 2026-10-28 · Snapshot fetched 2026-11-01. Latest stable release at fetch time; development branches and Git history are excluded. Only the selected code window and visible folders load here.

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1// Copyright (c) 2016-present The Bitcoin Core developers
2// Distributed under the MIT software license, see the accompanying
3// file COPYING or http://www.opensource.org/licenses/mit-license.php.
4
5#include <addresstype.h>
6#include <bench/bench.h>
7#include <coins.h>
8#include <key.h>
9#include <policy/policy.h>
10#include <primitives/transaction.h>
11#include <pubkey.h>
12#include <script/interpreter.h>
13#include <script/script.h>
14#include <script/script_error.h>
15#include <script/sign.h>
16#include <script/signingprovider.h>
17#include <script/verify_flags.h>
18#include <span.h>
19#include <test/util/transaction_utils.h>
20#include <uint256.h>
21#include <util/check.h>
22#include <util/translation.h>
23
24#include <cstddef>
25#include <map>
26#include <span>
27#include <vector>
28
29enum class ScriptType {
30    P2WPKH, // segwitv0, witness-pubkey-hash (ECDSA signature)
31    P2TR_KeyPath, // segwitv1, taproot key-path spend (Schnorr signature)
32    P2TR_ScriptPath, // segwitv1, taproot script-path spend (Tapscript leaf with a single OP_CHECKSIG)
33};
34
35static size_t ExpectedWitnessStackSize(ScriptType script_type)
36{
37    switch (script_type) {
38    case ScriptType::P2WPKH: return 2; // [pubkey, signature]
39    case ScriptType::P2TR_KeyPath: return 1; // [signature]
40    case ScriptType::P2TR_ScriptPath: return 3; // [signature, tapscript, control block]
41    } // no default case, so the compiler can warn about missing cases
42    assert(false);
43}
44
45// Microbenchmark for verification of standard scripts.
46static void VerifyScriptBench(benchmark::Bench& bench, ScriptType script_type)
47{
48    ECC_Context ecc_context{};
49
50    // Create deterministic key material needed for output script creation / signing
51    CKey privkey;
52    privkey.Set(uint256::ONE.begin(), uint256::ONE.end(), /*fCompressedIn=*/true);
53    CPubKey pubkey = privkey.GetPubKey();
54    XOnlyPubKey xonly_pubkey{pubkey};
55    CKeyID key_id = pubkey.GetID();
56
57    FlatSigningProvider keystore;
58    keystore.keys.emplace(key_id, privkey);
59    keystore.pubkeys.emplace(key_id, pubkey);
60
61    // Create crediting and spending transactions with provided input type
62    const auto dest{[&]() -> CTxDestination {
63        switch (script_type) {
64        case ScriptType::P2WPKH: return WitnessV0KeyHash(pubkey);
65        case ScriptType::P2TR_KeyPath: return WitnessV1Taproot(xonly_pubkey);
66        case ScriptType::P2TR_ScriptPath:
67            TaprootBuilder builder;
68            builder.Add(0, CScript() << ToByteVector(xonly_pubkey) << OP_CHECKSIG, TAPROOT_LEAF_TAPSCRIPT);
69            builder.Finalize(XOnlyPubKey::NUMS_H); // effectively unspendable key-path
70            const auto output{builder.GetOutput()};
71            keystore.tr_trees.emplace(output, builder);
72            return output;
73        } // no default case, so the compiler can warn about missing cases
74        assert(false);
75    }()};
76    const CMutableTransaction& txCredit = BuildCreditingTransaction(GetScriptForDestination(dest), 1);
77    CMutableTransaction txSpend = BuildSpendingTransaction(/*scriptSig=*/{}, /*scriptWitness=*/{}, CTransaction(txCredit));
78
79    // Sign spending transaction, precompute transaction data
80    PrecomputedTransactionData txdata;
81    {
82        const std::map<COutPoint, Coin> coins{
83            {txSpend.vin[0].prevout, Coin(txCredit.vout[0], /*nHeightIn=*/100, /*fCoinBaseIn=*/false)}
84        };
85        std::map<int, bilingual_str> input_errors;
86        bool complete = SignTransaction(txSpend, &keystore, coins, {.sighash_type = SIGHASH_ALL}, input_errors);
87        assert(complete);
88        // Weak sanity check on witness data to ensure we produced the intended spending type
89        assert(txSpend.vin[0].scriptWitness.stack.size() == ExpectedWitnessStackSize(script_type));
90        txdata.Init(txSpend, /*spent_outputs=*/{txCredit.vout[0]});
91    }
92
93    // Benchmark.
94    bench.unit("script").run([&] {
95        ScriptError err;
96        bool success = VerifyScript(
97            txSpend.vin[0].scriptSig,
98            txCredit.vout[0].scriptPubKey,
99            &txSpend.vin[0].scriptWitness,
100            STANDARD_SCRIPT_VERIFY_FLAGS,
101            MutableTransactionSignatureChecker(&txSpend, 0, txCredit.vout[0].nValue, txdata, MissingDataBehavior::ASSERT_FAIL),
102            &err);
103        assert(err == SCRIPT_ERR_OK);
104        assert(success);
105    });
106}
107
108static void VerifyScriptP2WPKH(benchmark::Bench& bench) { VerifyScriptBench(bench, ScriptType::P2WPKH); }
109static void VerifyScriptP2TR_KeyPath(benchmark::Bench& bench) { VerifyScriptBench(bench, ScriptType::P2TR_KeyPath); }
110static void VerifyScriptP2TR_ScriptPath(benchmark::Bench& bench) { VerifyScriptBench(bench, ScriptType::P2TR_ScriptPath); }
111
112static void VerifyNestedIfScript(benchmark::Bench& bench)
113{
114    std::vector<std::vector<unsigned char>> stack;
115    CScript script;
116    for (int i = 0; i < 100; ++i) {
117        script << OP_1 << OP_IF;
118    }
119    for (int i = 0; i < 1000; ++i) {
120        script << OP_1;
121    }
122    for (int i = 0; i < 100; ++i) {
123        script << OP_ENDIF;
124    }
125    bench.unit("script")
126        .setup([&] { stack.clear(); })
127        .run([&] {
128            ScriptError error;
129            const bool ret{EvalScript(stack, script, /*flags=*/0, BaseSignatureChecker(), SigVersion::BASE, &error)};
130            assert(ret && error == SCRIPT_ERR_OK);
131        });
132}
133
134BENCHMARK(VerifyScriptP2WPKH);
135BENCHMARK(VerifyScriptP2TR_KeyPath);
136BENCHMARK(VerifyScriptP2TR_ScriptPath);
137BENCHMARK(VerifyNestedIfScript);
138

src/wallet/receive.cpp

src/wallet/coinselection.cpp

src/consensus/validation.h

src/primitives/transaction.cpp

src/script/descriptor.cpp

src/bitcoin-cli.cpp

src/rpc/blockchain.cpp

src/rpc/rawtransaction.cpp

src/init.cpp

src/crypto/sha256.cpp

src/consensus/merkle.h

src/consensus/tx_check.h

src/consensus/tx_verify.h

src/policy/feerate.h

src/policy/feerate.cpp

src/primitives/transaction_identifier.h

src/chainparamsbase.h

src/chainparamsbase.cpp

src/util/moneystr.cpp

src/crypto/ripemd160.h

src/crypto/sha1.h

src/crypto/sha512.h

src/crypto/hmac_sha256.h

src/crypto/hmac_sha512.h

src/crypto/hmac_sha256.cpp

src/crypto/hmac_sha512.cpp

src/crypto/hkdf_sha256_32.h

src/crypto/hkdf_sha256_32.cpp

src/support/cleanse.h

src/support/cleanse.cpp

src/crypto/siphash.cpp

src/crypto/muhash.h

src/crypto/chacha20.h

src/crypto/poly1305.h

src/crypto/chacha20poly1305.h

src/crypto/chacha20poly1305.cpp

src/util/chaintype.cpp

src/util/obfuscation.h

src/util/byte_units.h

src/util/overflow.h

src/blockencodings.cpp

src/net_permissions.cpp

src/policy/packages.cpp

src/policy/rbf.cpp

src/policy/truc_policy.cpp

src/policy/ephemeral_policy.cpp

src/policy/settings.cpp

src/policy/policy.cpp

src/node/transaction.cpp

src/node/coin.cpp

src/rpc/client.cpp

src/rpc/external_signer.cpp

src/rpc/request.cpp

src/rpc/server_util.cpp

src/rpc/fees.cpp

src/rpc/output_script.cpp

src/rpc/rawtransaction_util.cpp

src/rpc/rawtransaction_util.h

src/rpc/register.h

src/rpc/request.h

src/rpc/server_util.h

src/rpc/protocol.h

src/rpc/server.h

src/rpc/signmessage.cpp

src/rpc/txoutproof.cpp

src/rpc/util.cpp

src/rpc/util.h

src/wallet/rpc/addresses.cpp

src/wallet/rpc/backup.cpp

src/wallet/rpc/coins.cpp

src/wallet/rpc/encrypt.cpp

src/wallet/rpc/signmessage.cpp

src/wallet/rpc/util.cpp

src/wallet/rpc/util.h

src/wallet/coincontrol.cpp

src/wallet/coincontrol.h

src/wallet/context.cpp

src/wallet/context.h

src/wallet/crypter.cpp

src/wallet/crypter.h

src/wallet/db.cpp

src/wallet/export.cpp

src/wallet/external_signer_scriptpubkeyman.cpp

src/wallet/rpc/spend.cpp

src/wallet/rpc/transactions.cpp

src/wallet/rpc/wallet.cpp

src/wallet/feebumper.cpp

src/wallet/feebumper.h

src/index/base.h

src/index/base.cpp

src/index/txindex.h

src/index/txindex.cpp

src/index/txindex_key.h

src/index/txospenderindex.h

src/index/txospenderindex.cpp

src/index/blockfilterindex.h

src/index/blockfilterindex.cpp

src/index/coinstatsindex.h

src/index/coinstatsindex.cpp

src/index/db_key.h

src/index/disktxpos.h

src/kernel/chain.cpp

src/kernel/chain.h

src/kernel/checks.cpp

src/kernel/checks.h

src/kernel/context.cpp

src/kernel/context.h

src/kernel/cs_main.cpp

src/kernel/cs_main.h

src/kernel/disconnected_transactions.cpp

src/kernel/disconnected_transactions.h

src/kernel/mempool_removal_reason.cpp

src/kernel/mempool_removal_reason.h

src/kernel/coinstats.cpp

src/kernel/coinstats.h

src/kernel/chainparams.cpp

src/kernel/chainparams.h

src/wallet/sqlite.cpp

src/wallet/sqlite.h

src/wallet/transaction.cpp

src/wallet/transaction.h

src/wallet/dump.cpp

src/wallet/dump.h

src/wallet/init.cpp

src/wallet/walletutil.cpp

src/wallet/walletutil.h

src/wallet/wallettool.cpp

src/wallet/wallettool.h

src/wallet/export.h

src/wallet/migrate.cpp

src/wallet/migrate.h

src/wallet/db.h

src/wallet/walletdb.cpp

src/wallet/interfaces.cpp

src/wallet/scriptpubkeyman.cpp

src/wallet/scriptpubkeyman.h

src/kernel/bitcoinkernel.cpp

src/kernel/bitcoinkernel.h

src/kernel/bitcoinkernel_wrapper.h

src/node/chainstate.cpp

src/node/chainstate.h

src/node/blockstorage.cpp

src/node/blockstorage.h

src/node/mempool_persist.cpp

src/node/mempool_persist.h

src/node/utxo_snapshot.cpp

src/node/utxo_snapshot.h

src/node/kernel_notifications.cpp

src/node/kernel_notifications.h

src/node/blockmanager_args.cpp

src/kernel/blockmanager_opts.h

src/util/expected.cpp

src/policy/settings.h

src/util/types.h

src/kernel/messagestartchars.h

src/kernel/warning.h

src/util/exception.h

src/common/license_info.h

src/node/coins_view_args.h

src/node/database_args.h

src/util/batchpriority.h

src/util/ui_change_type.h

src/node/coins_view_args.cpp

src/node/peerman_args.h

src/util/serfloat.h

src/node/blockmanager_args.h

src/node/database_args.cpp

src/util/overloaded.h

src/interfaces/types.h

src/node/chainstatemanager_args.h

src/node/minisketchwrapper.h

src/util/macros.h

src/util/syserror.h

src/common/run_command.h

src/util/bytevectorhash.cpp

src/node/mempool_persist_args.cpp

src/util/exec.h

src/util/rbf.h

src/crypto/hex_base.h

src/node/mempool_persist_args.h

src/interfaces/echo.h

src/util/any.h

src/util/batchpriority.cpp

src/util/threadnames.h

src/node/coin.h

src/node/mempool_args.h

src/util/asmap.h

src/util/bytevectorhash.h

src/node/context.cpp

src/util/insert.h

src/util/readwritefile.h

src/node/peerman_args.cpp

src/node/interface_ui.cpp

src/interfaces/handler.h

src/node/mining_args.h

src/util/hasher.cpp

src/common/init.h

src/kernel/mempool_limits.h

src/common/system.h

src/crypto/sha3.h

src/util/threadinterrupt.cpp

src/node/protocol_version.h

src/util/exception.cpp

src/common/messages.h

src/node/connection_types.cpp

src/util/bip32.h

src/common/license_info.cpp

src/util/stdmutex.h

src/common/run_command.cpp

src/util/check.cpp

src/util/golombrice.h

src/node/types.h

src/node/timeoffsets.h

src/util/readwritefile.cpp

src/util/fastrange.h

src/util/signalinterrupt.h

src/util/task_runner.h

src/util/syserror.cpp

src/common/interfaces.cpp

src/common/types.h

src/util/threadinterrupt.h

src/kernel/chainstatemanager_opts.h

src/node/psbt.h

src/policy/ephemeral_policy.h

src/util/trace.h

src/common/url.cpp

src/kernel/mempool_options.h

src/util/serfloat.cpp

src/kernel/notifications_interface.h

src/node/timeoffsets.cpp

src/node/warnings.cpp

src/util/hash_type.h

src/crypto/hex_base.cpp

src/node/eviction.h

src/util/tokenbucket.h

src/crypto/aes.h

src/common/pcp.h

src/util/feefrac.cpp

src/node/transaction.h

src/util/threadnames.cpp

src/common/signmessage.h

src/util/exec.cpp

src/util/signalinterrupt.cpp

src/clientversion.cpp

src/common/signmessage.cpp

src/compat/assumptions.h

src/compat/byteswap.h

src/deploymentinfo.cpp

src/deploymentinfo.h

src/deploymentstatus.cpp

src/deploymentstatus.h

src/dummywallet.cpp

src/external_signer.h

src/init/bitcoin-gui.cpp

src/init/bitcoin-node.cpp

src/init/bitcoin-qt.cpp

src/init/bitcoin-wallet.cpp

src/init/bitcoind.cpp

src/init/common.h

src/interfaces/init.h

src/interfaces/ipc.h

src/key_io.h

src/logging/categories.h

src/logging/timer.h

src/mapport.h

src/musig.h

src/net_permissions.h

src/netgroup.h

src/netmessagemaker.h

src/node/chainstatemanager_args.cpp

src/node/connection_types.h

src/node/context.h

src/node/interface_ui.h

src/node/mempool_args.cpp

src/node/mining_args.cpp

src/node/minisketchwrapper.cpp

src/node/txreconciliation.h

src/policy/fees/estimator_args.cpp

src/policy/fees/estimator_args.h

src/policy/fees/estimator_man.cpp

src/policy/fees/estimator_man.h

src/policy/packages.h

src/policy/rbf.h

src/policy/truc_policy.h

src/pow.h

src/primitives/block.cpp

src/randomenv.h

src/rest.h

src/script/keyorigin.h

src/script/parsing.cpp

src/script/parsing.h

src/script/script_error.h

src/script/sigcache.cpp

src/script/sigcache.h

src/script/solver.h

src/script/verify_flags.h

src/semaphore_grant.h

src/signet.h

src/span.h

src/support/allocators/secure.h

src/support/allocators/zeroafterfree.h

src/util/tokenpipe.cpp

src/util/translation.h

src/util/vector.h

src/versionbits.h

src/versionbits_impl.h

src/wallet/external_signer_scriptpubkeyman.h

src/wallet/fees.h

src/wallet/load.h

src/wallet/receive.h

src/wallet/rpc/wallet.h

src/wallet/types.h

src/walletinitinterface.h

src/zmq/zmqabstractnotifier.cpp

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