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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 <qt/askpassphrasedialog.h>
6#include <qt/forms/ui_askpassphrasedialog.h>
7
8#include <qt/guiconstants.h>
9#include <qt/guiutil.h>
10#include <qt/walletmodel.h>
11
12#include <support/allocators/secure.h>
13
14#include <QKeyEvent>
15#include <QMessageBox>
16#include <QPushButton>
17
18AskPassphraseDialog::AskPassphraseDialog(Mode _mode, QWidget *parent, SecureString* passphrase_out) :
19    QDialog(parent, GUIUtil::dialog_flags),
20    ui(new Ui::AskPassphraseDialog),
21    mode(_mode),
22    m_passphrase_out(passphrase_out)
23{
24    ui->setupUi(this);
25
26    ui->passEdit1->setMinimumSize(ui->passEdit1->sizeHint());
27    ui->passEdit2->setMinimumSize(ui->passEdit2->sizeHint());
28    ui->passEdit3->setMinimumSize(ui->passEdit3->sizeHint());
29
30    ui->passEdit1->setMaxLength(MAX_PASSPHRASE_SIZE);
31    ui->passEdit2->setMaxLength(MAX_PASSPHRASE_SIZE);
32    ui->passEdit3->setMaxLength(MAX_PASSPHRASE_SIZE);
33
34    // Setup Caps Lock detection.
35    ui->passEdit1->installEventFilter(this);
36    ui->passEdit2->installEventFilter(this);
37    ui->passEdit3->installEventFilter(this);
38
39    switch(mode)
40    {
41        case Encrypt: // Ask passphrase x2
42            ui->warningLabel->setText(tr("Enter the new passphrase for the wallet.<br/>Please use a passphrase of <b>ten or more random characters</b>, or <b>eight or more words</b>."));
43            ui->passLabel1->hide();
44            ui->passEdit1->hide();
45            setWindowTitle(tr("Encrypt wallet"));
46            break;
47        case UnlockMigration:
48        case Unlock: // Ask passphrase
49            ui->warningLabel->setText(tr("This operation needs your wallet passphrase to unlock the wallet."));
50            ui->passLabel2->hide();
51            ui->passEdit2->hide();
52            ui->passLabel3->hide();
53            ui->passEdit3->hide();
54            setWindowTitle(tr("Unlock wallet"));
55            break;
56        case ChangePass: // Ask old passphrase + new passphrase x2
57            setWindowTitle(tr("Change passphrase"));
58            ui->warningLabel->setText(tr("Enter the old passphrase and new passphrase for the wallet."));
59            break;
60    }
61    textChanged();
62    connect(ui->toggleShowPasswordButton, &QPushButton::toggled, this, &AskPassphraseDialog::toggleShowPassword);
63    connect(ui->passEdit1, &QLineEdit::textChanged, this, &AskPassphraseDialog::textChanged);
64    connect(ui->passEdit2, &QLineEdit::textChanged, this, &AskPassphraseDialog::textChanged);
65    connect(ui->passEdit3, &QLineEdit::textChanged, this, &AskPassphraseDialog::textChanged);
66
67    GUIUtil::handleCloseWindowShortcut(this);
68}
69
70AskPassphraseDialog::~AskPassphraseDialog()
71{
72    secureClearPassFields();
73    delete ui;
74}
75
76void AskPassphraseDialog::setModel(WalletModel *_model)
77{
78    this->model = _model;
79}
80
81void AskPassphraseDialog::accept()
82{
83    SecureString oldpass, newpass1, newpass2;
84    if (!model && mode != Encrypt && mode != UnlockMigration)
85        return;
86    oldpass.reserve(MAX_PASSPHRASE_SIZE);
87    newpass1.reserve(MAX_PASSPHRASE_SIZE);
88    newpass2.reserve(MAX_PASSPHRASE_SIZE);
89
90    oldpass.assign(std::string_view{ui->passEdit1->text().toStdString()});
91    newpass1.assign(std::string_view{ui->passEdit2->text().toStdString()});
92    newpass2.assign(std::string_view{ui->passEdit3->text().toStdString()});
93
94    secureClearPassFields();
95
96    switch(mode)
97    {
98    case Encrypt: {
99        if(newpass1.empty() || newpass2.empty())
100        {
101            // Cannot encrypt with empty passphrase
102            break;
103        }
104        QMessageBox msgBoxConfirm(QMessageBox::Question,
105                                  tr("Confirm wallet encryption"),
106                                  tr("Warning: If you encrypt your wallet and lose your passphrase, you will <b>LOSE ALL OF YOUR BITCOINS</b>!") + "<br><br>" + tr("Are you sure you wish to encrypt your wallet?"),
107                                  QMessageBox::Cancel | QMessageBox::Yes, this);
108        msgBoxConfirm.button(QMessageBox::Yes)->setText(tr("Continue"));
109        msgBoxConfirm.button(QMessageBox::Cancel)->setText(tr("Back"));
110        msgBoxConfirm.setDefaultButton(QMessageBox::Cancel);
111        QMessageBox::StandardButton retval = (QMessageBox::StandardButton)msgBoxConfirm.exec();
112        if(retval == QMessageBox::Yes)
113        {
114            if(newpass1 == newpass2)
115            {
116                QString encryption_reminder = tr("Remember that encrypting your wallet cannot fully protect "
117                "your bitcoins from being stolen by malware infecting your computer.");
118                if (m_passphrase_out) {
119                    m_passphrase_out->assign(newpass1);
120                    QMessageBox msgBoxWarning(QMessageBox::Warning,
121                                              tr("Wallet to be encrypted"),
122                                              "<qt>" +
123                                                  tr("Your wallet is about to be encrypted. ") + encryption_reminder + " " +
124                                                  tr("Are you sure you wish to encrypt your wallet?") +
125                                                  "</b></qt>",
126                                              QMessageBox::Cancel | QMessageBox::Yes, this);
127                    msgBoxWarning.setDefaultButton(QMessageBox::Cancel);
128                    QMessageBox::StandardButton retval = (QMessageBox::StandardButton)msgBoxWarning.exec();
129                    if (retval == QMessageBox::Cancel) {
130                        QDialog::reject();
131                        return;
132                    }
133                } else {
134                    assert(model != nullptr);
135                    if (model->setWalletEncrypted(newpass1)) {
136                        QMessageBox::warning(this, tr("Wallet encrypted"),
137                                             "<qt>" +
138                                             tr("Your wallet is now encrypted. ") + encryption_reminder +
139                                             "<br><br><b>" +
140                                             tr("IMPORTANT: Any previous backups you have made of your wallet file "
141                                             "should be replaced with the newly generated, encrypted wallet file. "
142                                             "For security reasons, previous backups of the unencrypted wallet file "
143                                             "will become useless as soon as you start using the new, encrypted wallet.") +
144                                             "</b></qt>");
145                    } else {
146                        QMessageBox::critical(this, tr("Wallet encryption failed"),
147                                             tr("Wallet encryption failed due to an internal error. Your wallet was not encrypted."));
148                    }
149                }
150                QDialog::accept(); // Success
151            }
152            else
153            {
154                QMessageBox::critical(this, tr("Wallet encryption failed"),
155                                     tr("The supplied passphrases do not match."));
156            }
157        }
158    } break;
159    case Unlock:
160        try {
161            if (!model->setWalletLocked(false, oldpass)) {
162                // Check if the passphrase has a null character (see #27067 for details)
163                if (oldpass.find('\0') == std::string::npos) {
164                    QMessageBox::critical(this, tr("Wallet unlock failed"),
165                                          tr("The passphrase entered for the wallet decryption was incorrect."));
166                } else {
167                    QMessageBox::critical(this, tr("Wallet unlock failed"),
168                                          tr("The passphrase entered for the wallet decryption is incorrect. "
169                                             "It contains a null character (ie - a zero byte). "
170                                             "If the passphrase was set with a version of this software prior to 25.0, "
171                                             "please try again with only the characters up to — but not including — "
172                                             "the first null character. If this is successful, please set a new "
173                                             "passphrase to avoid this issue in the future."));
174                }
175            } else {
176                if (m_passphrase_out) {
177                    m_passphrase_out->assign(oldpass);
178                }
179                QDialog::accept(); // Success
180            }
181        } catch (const std::runtime_error& e) {
182            QMessageBox::critical(this, tr("Wallet unlock failed"), e.what());
183        }
184        break;
185    case UnlockMigration:
186        Assume(m_passphrase_out)->assign(oldpass);
187        QDialog::accept();
188        break;
189    case ChangePass:
190        if(newpass1 == newpass2)
191        {
192            if(model->changePassphrase(oldpass, newpass1))
193            {
194                QMessageBox::information(this, tr("Wallet encrypted"),
195                                     tr("Wallet passphrase was successfully changed."));
196                QDialog::accept(); // Success
197            }
198            else
199            {
200                // Check if the old passphrase had a null character (see #27067 for details)
201                if (oldpass.find('\0') == std::string::npos) {
202                    QMessageBox::critical(this, tr("Passphrase change failed"),
203                                          tr("The passphrase entered for the wallet decryption was incorrect."));
204                } else {
205                    QMessageBox::critical(this, tr("Passphrase change failed"),
206                                          tr("The old passphrase entered for the wallet decryption is incorrect. "
207                                             "It contains a null character (ie - a zero byte). "
208                                             "If the passphrase was set with a version of this software prior to 25.0, "
209                                             "please try again with only the characters up to — but not including — "
210                                             "the first null character."));
211                }
212            }
213        }
214        else
215        {
216            QMessageBox::critical(this, tr("Wallet encryption failed"),
217                                 tr("The supplied passphrases do not match."));
218        }
219        break;
220    }
221}
222
223void AskPassphraseDialog::textChanged()
224{
225    // Validate input, set Ok button to enabled when acceptable
226    bool acceptable = false;
227    switch(mode)
228    {
229    case Encrypt: // New passphrase x2
230        acceptable = !ui->passEdit2->text().isEmpty() && !ui->passEdit3->text().isEmpty();
231        break;
232    case UnlockMigration:
233    case Unlock: // Old passphrase x1
234        acceptable = !ui->passEdit1->text().isEmpty();
235        break;
236    case ChangePass: // Old passphrase x1, new passphrase x2
237        acceptable = !ui->passEdit1->text().isEmpty() && !ui->passEdit2->text().isEmpty() && !ui->passEdit3->text().isEmpty();
238        break;
239    }
240    ui->buttonBox->button(QDialogButtonBox::Ok)->setEnabled(acceptable);
241}
242
243bool AskPassphraseDialog::event(QEvent *event)
244{
245    // Detect Caps Lock key press.
246    if (event->type() == QEvent::KeyPress) {
247        QKeyEvent *ke = static_cast<QKeyEvent *>(event);
248        if (ke->key() == Qt::Key_CapsLock) {
249            fCapsLock = !fCapsLock;
250        }

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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