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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.

bitcoin / bitcoinstable

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▤ arith_uint256.hGuide

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▤ blockencodings.cppGuide

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bitcoin / src / psbt.h

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501                        SerializeToVector(s, CompactSizeWriter(PSBT_IN_MUSIG2_PARTIAL_SIG), std::span{pubkey}, std::span{agg_pubkey}, leaf_hash);
502                    }
503                    SerializeToVector(s, psig);
504                }
505            }
506        }
507
508        // Write script sig
509        if (!final_script_sig.empty()) {
510            SerializeToVector(s, CompactSizeWriter(PSBT_IN_SCRIPTSIG));
511            s << final_script_sig;
512        }
513        // write script witness
514        if (!final_script_witness.IsNull()) {
515            SerializeToVector(s, CompactSizeWriter(PSBT_IN_SCRIPTWITNESS));
516            SerializeToVector(s, final_script_witness.stack);
517        }
518
519        // Write PSBTv2 fields
520        if (m_psbt_version >= 2) {
521            // Write prev txid, vout, sequence, and lock times
522            SerializeToVector(s, CompactSizeWriter(PSBT_IN_PREVIOUS_TXID));
523            SerializeToVector(s, prev_txid);
524
525            SerializeToVector(s, CompactSizeWriter(PSBT_IN_OUTPUT_INDEX));
526            SerializeToVector(s, prev_out);
527
528            if (sequence != std::nullopt) {
529                SerializeToVector(s, CompactSizeWriter(PSBT_IN_SEQUENCE));
530                SerializeToVector(s, *sequence);
531            }
532            if (time_locktime != std::nullopt) {
533                SerializeToVector(s, CompactSizeWriter(PSBT_IN_REQUIRED_TIME_LOCKTIME));
534                SerializeToVector(s, *time_locktime);
535            }
536            if (height_locktime != std::nullopt) {
537                SerializeToVector(s, CompactSizeWriter(PSBT_IN_REQUIRED_HEIGHT_LOCKTIME));
538                SerializeToVector(s, *height_locktime);
539            }
540        }
541
542        // Write proprietary things
543        for (const auto& entry : m_proprietary) {
544            s << entry.key;
545            s << entry.value;
546        }
547
548        // Write unknown things
549        for (auto& entry : unknown) {
550            s << entry.first;
551            s << entry.second;
552        }
553
554        s << PSBT_SEPARATOR;
555    }
556
557
558    template <typename Stream>
559    inline void Unserialize(Stream& s) {
560        // Used for duplicate key detection
561        std::set<std::vector<unsigned char>> key_lookup;
562        // Cache whether PSBTv2 required fields were seen
563        bool found_prev_txid = false;
564        bool found_prev_out = false;
565
566        // Read loop
567        bool found_sep = false;
568        while(!s.empty()) {
569            // Read the key of format "<keylen><keytype><keydata>" after which
570            // "key" will contain "<keytype><keydata>"
571            std::vector<unsigned char> key;
572            s >> key;
573
574            // the key is empty if that was actually a separator byte
575            // This is a special case for key lengths 0 as those are not allowed (except for separator)
576            if (key.empty()) {
577                found_sep = true;
578                break;
579            }
580
581            // Duplicate keys are not permitted
582            if (!key_lookup.emplace(key).second) {
583                throw std::ios_base::failure(tfm::format("Duplicate Key, input key \"%s\" already provided", HexStr(key)));
584            }
585
586            // "skey" is used so that "key" is unchanged after reading keytype below
587            SpanReader skey{key};
588            // keytype is of the format compact size uint at the beginning of "key"
589            uint64_t type = ReadCompactSize(skey);
590
591            // Do stuff based on keytype "type", i.e., key checks, reading values of the
592            // format "<valuelen><valuedata>" from the stream "s", and value checks
593            switch(type) {
594                case PSBT_IN_NON_WITNESS_UTXO:
595                {
596                    ExpectedKeySize("Input Non-witness UTXO", key, 1);
597                    // Set the stream to unserialize with witness since this is always a valid network transaction
598                    UnserializeFromVector(s, TX_WITH_WITNESS(non_witness_utxo));
599                    break;
600                }
601                case PSBT_IN_WITNESS_UTXO:
602                    ExpectedKeySize("Input Witness UTXO", key, 1);
603                    UnserializeFromVector(s, witness_utxo);
604                    break;
605                case PSBT_IN_PARTIAL_SIG:
606                {
607                    // Make sure that the key is the size of pubkey + 1
608                    if (key.size() != CPubKey::SIZE + 1 && key.size() != CPubKey::COMPRESSED_SIZE + 1) {
609                        throw std::ios_base::failure("Size of key was not the expected size for the type partial signature pubkey");
610                    }
611                    // Read in the pubkey from key
612                    CPubKey pubkey(key.begin() + 1, key.end());
613                    if (!pubkey.IsFullyValid()) {
614                       throw std::ios_base::failure("Invalid pubkey");
615                    }
616
617                    // Read in the signature from value
618                    std::vector<unsigned char> sig;
619                    s >> sig;
620
621                    // Check that the signature is validly encoded
622                    if (sig.empty() || !CheckSignatureEncoding(sig, SCRIPT_VERIFY_DERSIG | SCRIPT_VERIFY_STRICTENC, nullptr)) {
623                        throw std::ios_base::failure("Signature is not a valid encoding");
624                    }
625
626                    // Add to list
627                    partial_sigs.emplace(pubkey.GetID(), SigPair(pubkey, std::move(sig)));
628                    break;
629                }
630                case PSBT_IN_SIGHASH:
631                    ExpectedKeySize("Input Sighash Type", key, 1);
632                    int sighash;
633                    UnserializeFromVector(s, sighash);
634                    sighash_type = sighash;
635                    break;
636                case PSBT_IN_REDEEMSCRIPT:
637                {
638                    ExpectedKeySize("Input redeemScript", key, 1);
639                    s >> redeem_script;
640                    break;
641                }
642                case PSBT_IN_WITNESSSCRIPT:
643                {
644                    ExpectedKeySize("Input witnessScript", key, 1);
645                    s >> witness_script;
646                    break;
647                }
648                case PSBT_IN_BIP32_DERIVATION:
649                {
650                    DeserializeHDKeypaths(s, key, hd_keypaths);
651                    break;
652                }
653                case PSBT_IN_SCRIPTSIG:
654                {
655                    ExpectedKeySize("Input Final scriptSig", key, 1);
656                    s >> final_script_sig;
657                    break;
658                }
659                case PSBT_IN_SCRIPTWITNESS:
660                {
661                    ExpectedKeySize("Input Final scriptWitness", key, 1);
662                    UnserializeFromVector(s, final_script_witness.stack);
663                    break;
664                }
665                case PSBT_IN_RIPEMD160:
666                {
667                    ExpectedKeySize("Input RIPEMD160 Preimage", key, CRIPEMD160::OUTPUT_SIZE + 1);
668                    // Read in the hash from key
669                    std::vector<unsigned char> hash_vec(key.begin() + 1, key.end());
670                    uint160 hash(hash_vec);
671
672                    // Read in the preimage from value
673                    std::vector<unsigned char> preimage;
674                    s >> preimage;
675
676                    // Add to preimages list
677                    ripemd160_preimages.emplace(hash, std::move(preimage));
678                    break;
679                }
680                case PSBT_IN_SHA256:
681                {
682                    ExpectedKeySize("Input SHA256 Preimage", key, CSHA256::OUTPUT_SIZE + 1);
683                    // Read in the hash from key
684                    std::vector<unsigned char> hash_vec(key.begin() + 1, key.end());
685                    uint256 hash(hash_vec);
686
687                    // Read in the preimage from value
688                    std::vector<unsigned char> preimage;
689                    s >> preimage;
690
691                    // Add to preimages list
692                    sha256_preimages.emplace(hash, std::move(preimage));
693                    break;
694                }
695                case PSBT_IN_HASH160:
696                {
697                    ExpectedKeySize("Input Hash160 Preimage", key, CHash160::OUTPUT_SIZE + 1);
698                    // Read in the hash from key
699                    std::vector<unsigned char> hash_vec(key.begin() + 1, key.end());
700                    uint160 hash(hash_vec);
701
702                    // Read in the preimage from value
703                    std::vector<unsigned char> preimage;
704                    s >> preimage;
705
706                    // Add to preimages list
707                    hash160_preimages.emplace(hash, std::move(preimage));
708                    break;
709                }
710                case PSBT_IN_HASH256:
711                {
712                    ExpectedKeySize("Input Hash256 Preimage", key, CHash256::OUTPUT_SIZE + 1);
713                    // Read in the hash from key
714                    std::vector<unsigned char> hash_vec(key.begin() + 1, key.end());
715                    uint256 hash(hash_vec);
716
717                    // Read in the preimage from value
718                    std::vector<unsigned char> preimage;
719                    s >> preimage;
720
721                    // Add to preimages list
722                    hash256_preimages.emplace(hash, std::move(preimage));
723                    break;
724                }
725                case PSBT_IN_PREVIOUS_TXID:
726                {
727                    ExpectedKeySize("Input Previous TXID", key, 1);
728                    if (m_psbt_version < 2) {
729                        throw std::ios_base::failure("Previous txid is not allowed in PSBTv0");
730                    }
731                    UnserializeFromVector(s, prev_txid);
732                    found_prev_txid = true;
733                    break;
734                }
735                case PSBT_IN_OUTPUT_INDEX:
736                {
737                    ExpectedKeySize("Input Previous Output's Index", key, 1);
738                    if (m_psbt_version < 2) {
739                        throw std::ios_base::failure("Previous output's index is not allowed in PSBTv0");
740                    }
741                    UnserializeFromVector(s, prev_out);
742                    found_prev_out = true;
743                    break;
744                }
745                case PSBT_IN_SEQUENCE:
746                {
747                    ExpectedKeySize("Input Sequence", key, 1);
748                    if (m_psbt_version < 2) {
749                        throw std::ios_base::failure("Sequence is not allowed in PSBTv0");
750                    }

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440 guided files · 2,580 pending. Guides cover key sections, not every line.

cmake/bitcoin-build-config.h.in src/consensus/amount.h src/consensus/consensus.h src/primitives/block.h src/primitives/transaction.h src/crypto/sha256.h src/util/moneystr.h src/clientversion.h src/uint256.h src/script/script.h src/policy/policy.h CMakeLists.txt README.md COPYING src/consensus/tx_check.cpp src/consensus/tx_verify.cpp src/consensus/merkle.cpp src/pow.cpp src/validation.cpp src/script/interpreter.cpp src/script/solver.cpp src/script/sign.cpp src/key_io.cpp src/net.cpp src/net_processing.cpp src/netaddress.cpp src/protocol.h src/wallet/wallet.cpp src/wallet/spend.cpp

← Previous 250 linesCode page 3Next 250 lines →

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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