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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) 2011-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 <key.h>
6#include <policy/policy.h>
7#include <script/interpreter.h>
8#include <script/script.h>
9#include <script/script_error.h>
10#include <script/sign.h>
11#include <script/signingprovider.h>
12#include <test/util/common.h>
13#include <test/util/setup_common.h>
14#include <test/util/transaction_utils.h>
15#include <tinyformat.h>
16#include <uint256.h>
17
18
19#include <boost/test/unit_test.hpp>
20
21BOOST_FIXTURE_TEST_SUITE(multisig_tests, BasicTestingSetup)
22
23static CScript
24sign_multisig(const CScript& scriptPubKey, const std::vector<CKey>& keys, const CTransaction& transaction, int whichIn)
25{
26    uint256 hash = SignatureHash(scriptPubKey, transaction, whichIn, SIGHASH_ALL, 0, SigVersion::BASE);
27
28    CScript result;
29    result << OP_0; // CHECKMULTISIG bug workaround
30    for (const CKey &key : keys)
31    {
32        std::vector<unsigned char> vchSig;
33        BOOST_CHECK(key.Sign(hash, vchSig));
34        vchSig.push_back((unsigned char)SIGHASH_ALL);
35        result << vchSig;
36    }
37    return result;
38}
39
40BOOST_AUTO_TEST_CASE(multisig_verify)
41{
42    script_verify_flags flags = SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_STRICTENC;
43
44    ScriptError err;
45    CKey key[4];
46    CAmount amount = 0;
47    for (int i = 0; i < 4; i++)
48        key[i].MakeNewKey(true);
49
50    CScript a_and_b;
51    a_and_b << OP_2 << ToByteVector(key[0].GetPubKey()) << ToByteVector(key[1].GetPubKey()) << OP_2 << OP_CHECKMULTISIG;
52
53    CScript a_or_b;
54    a_or_b << OP_1 << ToByteVector(key[0].GetPubKey()) << ToByteVector(key[1].GetPubKey()) << OP_2 << OP_CHECKMULTISIG;
55
56    CScript escrow;
57    escrow << OP_2 << ToByteVector(key[0].GetPubKey()) << ToByteVector(key[1].GetPubKey()) << ToByteVector(key[2].GetPubKey()) << OP_3 << OP_CHECKMULTISIG;
58
59    CMutableTransaction txFrom;  // Funding transaction
60    txFrom.vout.resize(3);
61    txFrom.vout[0].scriptPubKey = a_and_b;
62    txFrom.vout[1].scriptPubKey = a_or_b;
63    txFrom.vout[2].scriptPubKey = escrow;
64
65    CMutableTransaction txTo[3]; // Spending transaction
66    for (int i = 0; i < 3; i++)
67    {
68        txTo[i].vin.resize(1);
69        txTo[i].vout.resize(1);
70        txTo[i].vin[0].prevout.n = i;
71        txTo[i].vin[0].prevout.hash = txFrom.GetHash();
72        txTo[i].vout[0].nValue = 1;
73    }
74
75    std::vector<CKey> keys;
76    CScript s;
77
78    // Test a AND b:
79    keys.assign(1,key[0]);
80    keys.push_back(key[1]);
81    s = sign_multisig(a_and_b, keys, CTransaction(txTo[0]), 0);
82    BOOST_CHECK(VerifyScript(s, a_and_b, nullptr, flags, MutableTransactionSignatureChecker(&txTo[0], 0, amount, MissingDataBehavior::ASSERT_FAIL), &err));
83    BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err));
84
85    for (int i = 0; i < 4; i++)
86    {
87        keys.assign(1,key[i]);
88        s = sign_multisig(a_and_b, keys, CTransaction(txTo[0]), 0);
89        BOOST_CHECK_MESSAGE(!VerifyScript(s, a_and_b, nullptr, flags, MutableTransactionSignatureChecker(&txTo[0], 0, amount, MissingDataBehavior::ASSERT_FAIL), &err), strprintf("a&b 1: %d", i));
90        BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_INVALID_STACK_OPERATION, ScriptErrorString(err));
91
92        keys.assign(1,key[1]);
93        keys.push_back(key[i]);
94        s = sign_multisig(a_and_b, keys, CTransaction(txTo[0]), 0);
95        BOOST_CHECK_MESSAGE(!VerifyScript(s, a_and_b, nullptr, flags, MutableTransactionSignatureChecker(&txTo[0], 0, amount, MissingDataBehavior::ASSERT_FAIL), &err), strprintf("a&b 2: %d", i));
96        BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_EVAL_FALSE, ScriptErrorString(err));
97    }
98
99    // Test a OR b:
100    for (int i = 0; i < 4; i++)
101    {
102        keys.assign(1,key[i]);
103        s = sign_multisig(a_or_b, keys, CTransaction(txTo[1]), 0);
104        if (i == 0 || i == 1)
105        {
106            BOOST_CHECK_MESSAGE(VerifyScript(s, a_or_b, nullptr, flags, MutableTransactionSignatureChecker(&txTo[1], 0, amount, MissingDataBehavior::ASSERT_FAIL), &err), strprintf("a|b: %d", i));
107            BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err));
108        }
109        else
110        {
111            BOOST_CHECK_MESSAGE(!VerifyScript(s, a_or_b, nullptr, flags, MutableTransactionSignatureChecker(&txTo[1], 0, amount, MissingDataBehavior::ASSERT_FAIL), &err), strprintf("a|b: %d", i));
112            BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_EVAL_FALSE, ScriptErrorString(err));
113        }
114    }
115    s.clear();
116    s << OP_0 << OP_1;
117    BOOST_CHECK(!VerifyScript(s, a_or_b, nullptr, flags, MutableTransactionSignatureChecker(&txTo[1], 0, amount, MissingDataBehavior::ASSERT_FAIL), &err));
118    BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_SIG_DER, ScriptErrorString(err));
119
120
121    for (int i = 0; i < 4; i++)
122        for (int j = 0; j < 4; j++)
123        {
124            keys.assign(1,key[i]);
125            keys.push_back(key[j]);
126            s = sign_multisig(escrow, keys, CTransaction(txTo[2]), 0);
127            if (i < j && i < 3 && j < 3)
128            {
129                BOOST_CHECK_MESSAGE(VerifyScript(s, escrow, nullptr, flags, MutableTransactionSignatureChecker(&txTo[2], 0, amount, MissingDataBehavior::ASSERT_FAIL), &err), strprintf("escrow 1: %d %d", i, j));
130                BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err));
131            }
132            else
133            {
134                BOOST_CHECK_MESSAGE(!VerifyScript(s, escrow, nullptr, flags, MutableTransactionSignatureChecker(&txTo[2], 0, amount, MissingDataBehavior::ASSERT_FAIL), &err), strprintf("escrow 2: %d %d", i, j));
135                BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_EVAL_FALSE, ScriptErrorString(err));
136            }
137        }
138}
139
140BOOST_AUTO_TEST_CASE(multisig_IsStandard)
141{
142    CKey key[4];
143    for (int i = 0; i < 4; i++)
144        key[i].MakeNewKey(true);
145
146    const auto is_standard{[](const CScript& spk) {
147        TxoutType type;
148        bool res{::IsStandard(spk, type)};
149        if (res) {
150            BOOST_CHECK_EQUAL(type, TxoutType::MULTISIG);
151        }
152        return res;
153    }};
154
155    CScript a_and_b;
156    a_and_b << OP_2 << ToByteVector(key[0].GetPubKey()) << ToByteVector(key[1].GetPubKey()) << OP_2 << OP_CHECKMULTISIG;
157    BOOST_CHECK(is_standard(a_and_b));
158
159    CScript a_or_b;
160    a_or_b  << OP_1 << ToByteVector(key[0].GetPubKey()) << ToByteVector(key[1].GetPubKey()) << OP_2 << OP_CHECKMULTISIG;
161    BOOST_CHECK(is_standard(a_or_b));
162
163    CScript escrow;
164    escrow << OP_2 << ToByteVector(key[0].GetPubKey()) << ToByteVector(key[1].GetPubKey()) << ToByteVector(key[2].GetPubKey()) << OP_3 << OP_CHECKMULTISIG;
165    BOOST_CHECK(is_standard(escrow));
166
167    CScript one_of_four;
168    one_of_four << OP_1 << ToByteVector(key[0].GetPubKey()) << ToByteVector(key[1].GetPubKey()) << ToByteVector(key[2].GetPubKey()) << ToByteVector(key[3].GetPubKey()) << OP_4 << OP_CHECKMULTISIG;
169    BOOST_CHECK(!is_standard(one_of_four));
170
171    CScript malformed[6];
172    malformed[0] << OP_3 << ToByteVector(key[0].GetPubKey()) << ToByteVector(key[1].GetPubKey()) << OP_2 << OP_CHECKMULTISIG;
173    malformed[1] << OP_2 << ToByteVector(key[0].GetPubKey()) << ToByteVector(key[1].GetPubKey()) << OP_3 << OP_CHECKMULTISIG;
174    malformed[2] << OP_0 << ToByteVector(key[0].GetPubKey()) << ToByteVector(key[1].GetPubKey()) << OP_2 << OP_CHECKMULTISIG;
175    malformed[3] << OP_1 << ToByteVector(key[0].GetPubKey()) << ToByteVector(key[1].GetPubKey()) << OP_0 << OP_CHECKMULTISIG;
176    malformed[4] << OP_1 << ToByteVector(key[0].GetPubKey()) << ToByteVector(key[1].GetPubKey()) << OP_CHECKMULTISIG;
177    malformed[5] << OP_1 << ToByteVector(key[0].GetPubKey()) << ToByteVector(key[1].GetPubKey());
178
179    for (int i = 0; i < 6; i++) {
180        BOOST_CHECK(!is_standard(malformed[i]));
181    }
182}
183
184BOOST_AUTO_TEST_CASE(multisig_Sign)
185{
186    // Test SignSignature() (and therefore the version of Solver() that signs transactions)
187    FillableSigningProvider keystore;
188    CKey key[4];
189    for (int i = 0; i < 4; i++)
190    {
191        key[i].MakeNewKey(true);
192        BOOST_CHECK(keystore.AddKey(key[i]));
193    }
194
195    CScript a_and_b;
196    a_and_b << OP_2 << ToByteVector(key[0].GetPubKey()) << ToByteVector(key[1].GetPubKey()) << OP_2 << OP_CHECKMULTISIG;
197
198    CScript a_or_b;
199    a_or_b  << OP_1 << ToByteVector(key[0].GetPubKey()) << ToByteVector(key[1].GetPubKey()) << OP_2 << OP_CHECKMULTISIG;
200
201    CScript escrow;
202    escrow << OP_2 << ToByteVector(key[0].GetPubKey()) << ToByteVector(key[1].GetPubKey()) << ToByteVector(key[2].GetPubKey()) << OP_3 << OP_CHECKMULTISIG;
203
204    CMutableTransaction txFrom;  // Funding transaction
205    txFrom.vout.resize(3);
206    txFrom.vout[0].scriptPubKey = a_and_b;
207    txFrom.vout[1].scriptPubKey = a_or_b;
208    txFrom.vout[2].scriptPubKey = escrow;
209
210    CMutableTransaction txTo[3]; // Spending transaction
211    for (int i = 0; i < 3; i++)
212    {
213        txTo[i].vin.resize(1);
214        txTo[i].vout.resize(1);
215        txTo[i].vin[0].prevout.n = i;
216        txTo[i].vin[0].prevout.hash = txFrom.GetHash();
217        txTo[i].vout[0].nValue = 1;
218    }
219
220    for (int i = 0; i < 3; i++)
221    {
222        SignatureData empty;
223        BOOST_CHECK_MESSAGE(SignSignature(keystore, CTransaction(txFrom), txTo[i], 0, SIGHASH_ALL, empty), strprintf("SignSignature %d", i));
224    }
225}
226
227
228BOOST_AUTO_TEST_SUITE_END()
229

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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