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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) 2020-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 <chainparams.h>
6#include <key.h>
7#include <psbt.h>
8#include <pubkey.h>
9#include <script/keyorigin.h>
10#include <script/sign.h>
11#include <script/signingprovider.h>
12#include <streams.h>
13#include <test/fuzz/FuzzedDataProvider.h>
14#include <test/fuzz/fuzz.h>
15#include <test/fuzz/util.h>
16#include <test/util/transaction_utils.h>
17#include <util/chaintype.h>
18#include <util/translation.h>
19
20#include <cassert>
21#include <cstdint>
22#include <iostream>
23#include <map>
24#include <optional>
25#include <string>
26#include <vector>
27
28void initialize_script_sign()
29{
30    static ECC_Context ecc_context{};
31    SelectParams(ChainType::REGTEST);
32}
33
34FUZZ_TARGET(script_sign, .init = initialize_script_sign)
35{
36    FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
37    const std::vector<uint8_t> key = ConsumeRandomLengthByteVector(fuzzed_data_provider, 128);
38
39    {
40        DataStream random_data_stream{ConsumeDataStream(fuzzed_data_provider)};
41        std::map<CPubKey, KeyOriginInfo> hd_keypaths;
42        try {
43            DeserializeHDKeypaths(random_data_stream, key, hd_keypaths);
44        } catch (const std::ios_base::failure&) {
45        }
46        DataStream serialized{};
47        SerializeHDKeypaths(serialized, hd_keypaths, CompactSizeWriter(fuzzed_data_provider.ConsumeIntegral<uint8_t>()));
48    }
49
50    {
51        std::map<CPubKey, KeyOriginInfo> hd_keypaths;
52        LIMITED_WHILE (fuzzed_data_provider.ConsumeBool(), 10000) {
53            const std::optional<CPubKey> pub_key = ConsumeDeserializable<CPubKey>(fuzzed_data_provider);
54            if (!pub_key) {
55                break;
56            }
57            const std::optional<KeyOriginInfo> key_origin_info = ConsumeDeserializable<KeyOriginInfo>(fuzzed_data_provider);
58            if (!key_origin_info) {
59                break;
60            }
61            hd_keypaths[*pub_key] = *key_origin_info;
62        }
63        DataStream serialized{};
64        try {
65            SerializeHDKeypaths(serialized, hd_keypaths, CompactSizeWriter(fuzzed_data_provider.ConsumeIntegral<uint8_t>()));
66        } catch (const std::ios_base::failure&) {
67        }
68        std::map<CPubKey, KeyOriginInfo> deserialized_hd_keypaths;
69        try {
70            DeserializeHDKeypaths(serialized, key, deserialized_hd_keypaths);
71        } catch (const std::ios_base::failure&) {
72        }
73        assert(hd_keypaths.size() >= deserialized_hd_keypaths.size());
74    }
75
76    {
77        SignatureData signature_data_1{ConsumeScript(fuzzed_data_provider)};
78        SignatureData signature_data_2{ConsumeScript(fuzzed_data_provider)};
79        signature_data_1.MergeSignatureData(signature_data_2);
80    }
81
82    FillableSigningProvider provider;
83    CKey k = ConsumePrivateKey(fuzzed_data_provider);
84    if (k.IsValid()) {
85        provider.AddKey(k);
86    }
87
88    {
89        const std::optional<CMutableTransaction> mutable_transaction = ConsumeDeserializable<CMutableTransaction>(fuzzed_data_provider, TX_WITH_WITNESS);
90        const std::optional<CTxOut> tx_out = ConsumeDeserializable<CTxOut>(fuzzed_data_provider);
91        const unsigned int n_in = fuzzed_data_provider.ConsumeIntegral<unsigned int>();
92        if (mutable_transaction && tx_out && mutable_transaction->vin.size() > n_in) {
93            SignatureData signature_data_1 = DataFromTransaction(*mutable_transaction, n_in, *tx_out);
94            CTxIn input;
95            UpdateInput(input, signature_data_1);
96            const CScript script = ConsumeScript(fuzzed_data_provider);
97            SignatureData signature_data_2{script};
98            signature_data_1.MergeSignatureData(signature_data_2);
99        }
100        if (mutable_transaction) {
101            CTransaction tx_from{*mutable_transaction};
102            CMutableTransaction tx_to;
103            const std::optional<CMutableTransaction> opt_tx_to = ConsumeDeserializable<CMutableTransaction>(fuzzed_data_provider, TX_WITH_WITNESS);
104            if (opt_tx_to) {
105                tx_to = *opt_tx_to;
106            }
107            CMutableTransaction script_tx_to = tx_to;
108            CMutableTransaction sign_transaction_tx_to = tx_to;
109            if (n_in < tx_to.vin.size() && tx_to.vin[n_in].prevout.n < tx_from.vout.size()) {
110                SignatureData empty;
111                (void)SignSignature(provider, tx_from, tx_to, n_in, fuzzed_data_provider.ConsumeIntegral<int>(), empty);
112            }
113            if (n_in < script_tx_to.vin.size()) {
114                SignatureData empty;
115                auto from_pub_key = ConsumeScript(fuzzed_data_provider);
116                auto amount = ConsumeMoney(fuzzed_data_provider);
117                auto n_hash_type = fuzzed_data_provider.ConsumeIntegral<int>();
118                (void)SignSignature(provider, from_pub_key, script_tx_to, n_in, amount, n_hash_type, empty);
119                MutableTransactionSignatureCreator signature_creator{tx_to, n_in, ConsumeMoney(fuzzed_data_provider), {.sighash_type = fuzzed_data_provider.ConsumeIntegral<int>()}};
120                std::vector<unsigned char> vch_sig;
121                CKeyID address;
122                if (fuzzed_data_provider.ConsumeBool()) {
123                    if (k.IsValid()) {
124                        address = k.GetPubKey().GetID();
125                    }
126                } else {
127                    address = CKeyID{ConsumeUInt160(fuzzed_data_provider)};
128                }
129                auto script_code = ConsumeScript(fuzzed_data_provider);
130                auto sigversion = fuzzed_data_provider.PickValueInArray({SigVersion::BASE, SigVersion::WITNESS_V0});
131                (void)signature_creator.CreateSig(provider, vch_sig, address, script_code, sigversion);
132            }
133            std::map<COutPoint, Coin> coins{ConsumeCoins(fuzzed_data_provider)};
134            std::map<int, bilingual_str> input_errors;
135            (void)SignTransaction(sign_transaction_tx_to, &provider, coins, {.sighash_type = fuzzed_data_provider.ConsumeIntegral<int>()}, input_errors);
136        }
137    }
138
139    {
140        SignatureData signature_data_1;
141        (void)ProduceSignature(provider, DUMMY_SIGNATURE_CREATOR, ConsumeScript(fuzzed_data_provider), signature_data_1);
142        SignatureData signature_data_2;
143        (void)ProduceSignature(provider, DUMMY_MAXIMUM_SIGNATURE_CREATOR, ConsumeScript(fuzzed_data_provider), signature_data_2);
144    }
145}
146

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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