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https://github.com/keepassxreboot/keepassxc.git
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fc930bae69
Many lines were not conformant with the project's formatting rules. This patch should fix all formatting and whitespace issues in the code base. A clang-format directive was put around the connect() calls containing SIGNALs and SLOTs whose signatures would be denormalized because of the formatting rules.
132 lines
4.7 KiB
C++
132 lines
4.7 KiB
C++
/*
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* Copyright (C) 2017 KeePassXC Team <team@keepassxc.org>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 or (at your option)
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* version 3 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "KeePass2.h"
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#include "crypto/CryptoHash.h"
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#include "crypto/kdf/AesKdf.h"
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#include "crypto/kdf/Argon2Kdf.h"
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#include <QSharedPointer>
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#define UUID_LENGTH 16
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const QUuid KeePass2::CIPHER_AES128 = QUuid("61ab05a1-9464-41c3-8d74-3a563df8dd35");
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const QUuid KeePass2::CIPHER_AES256 = QUuid("31c1f2e6-bf71-4350-be58-05216afc5aff");
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const QUuid KeePass2::CIPHER_TWOFISH = QUuid("ad68f29f-576f-4bb9-a36a-d47af965346c");
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const QUuid KeePass2::CIPHER_CHACHA20 = QUuid("d6038a2b-8b6f-4cb5-a524-339a31dbb59a");
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const QUuid KeePass2::KDF_AES_KDBX3 = QUuid("c9d9f39a-628a-4460-bf74-0d08c18a4fea");
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const QUuid KeePass2::KDF_AES_KDBX4 = QUuid("7c02bb82-79a7-4ac0-927d-114a00648238");
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const QUuid KeePass2::KDF_ARGON2 = QUuid("ef636ddf-8c29-444b-91f7-a9a403e30a0c");
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const QByteArray KeePass2::INNER_STREAM_SALSA20_IV("\xe8\x30\x09\x4b\x97\x20\x5d\x2a");
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const QString KeePass2::KDFPARAM_UUID("$UUID");
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// AES parameters
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const QString KeePass2::KDFPARAM_AES_ROUNDS("R");
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const QString KeePass2::KDFPARAM_AES_SEED("S");
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// Argon2 parameters
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const QString KeePass2::KDFPARAM_ARGON2_SALT("S");
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const QString KeePass2::KDFPARAM_ARGON2_PARALLELISM("P");
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const QString KeePass2::KDFPARAM_ARGON2_MEMORY("M");
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const QString KeePass2::KDFPARAM_ARGON2_ITERATIONS("I");
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const QString KeePass2::KDFPARAM_ARGON2_VERSION("V");
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const QString KeePass2::KDFPARAM_ARGON2_SECRET("K");
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const QString KeePass2::KDFPARAM_ARGON2_ASSOCDATA("A");
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const QList<QPair<QUuid, QString>> KeePass2::CIPHERS{
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qMakePair(KeePass2::CIPHER_AES256, QObject::tr("AES: 256-bit")),
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qMakePair(KeePass2::CIPHER_TWOFISH, QObject::tr("Twofish: 256-bit")),
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qMakePair(KeePass2::CIPHER_CHACHA20, QObject::tr("ChaCha20: 256-bit"))};
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const QList<QPair<QUuid, QString>> KeePass2::KDFS{
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qMakePair(KeePass2::KDF_ARGON2, QObject::tr("Argon2 (KDBX 4 – recommended)")),
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qMakePair(KeePass2::KDF_AES_KDBX4, QObject::tr("AES-KDF (KDBX 4)")),
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qMakePair(KeePass2::KDF_AES_KDBX3, QObject::tr("AES-KDF (KDBX 3.1)"))};
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QByteArray KeePass2::hmacKey(const QByteArray& masterSeed, const QByteArray& transformedMasterKey)
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{
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CryptoHash hmacKeyHash(CryptoHash::Sha512);
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hmacKeyHash.addData(masterSeed);
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hmacKeyHash.addData(transformedMasterKey);
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hmacKeyHash.addData(QByteArray(1, '\x01'));
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return hmacKeyHash.result();
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}
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/**
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* Create KDF object from KDBX4+ KDF parameters.
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*
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* @param p variant map containing parameters
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* @return initialized KDF
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*/
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QSharedPointer<Kdf> KeePass2::kdfFromParameters(const QVariantMap& p)
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{
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QByteArray uuidBytes = p.value(KDFPARAM_UUID).toByteArray();
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if (uuidBytes.size() != UUID_LENGTH) {
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return {};
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}
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QUuid kdfUuid = QUuid::fromRfc4122(uuidBytes);
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if (kdfUuid == KDF_AES_KDBX3) {
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// upgrade to non-legacy AES-KDF, since KDBX3 doesn't have any KDF parameters
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kdfUuid = KDF_AES_KDBX4;
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}
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QSharedPointer<Kdf> kdf = uuidToKdf(kdfUuid);
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if (kdf.isNull()) {
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return {};
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}
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if (!kdf->processParameters(p)) {
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return {};
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}
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return kdf;
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}
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QVariantMap KeePass2::kdfToParameters(const QSharedPointer<Kdf>& kdf)
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{
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return kdf->writeParameters();
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}
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QSharedPointer<Kdf> KeePass2::uuidToKdf(const QUuid& uuid)
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{
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if (uuid == KDF_AES_KDBX3) {
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return QSharedPointer<AesKdf>::create(true);
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}
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if (uuid == KDF_AES_KDBX4) {
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return QSharedPointer<AesKdf>::create();
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}
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if (uuid == KDF_ARGON2) {
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return QSharedPointer<Argon2Kdf>::create();
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}
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return {};
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}
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KeePass2::ProtectedStreamAlgo KeePass2::idToProtectedStreamAlgo(quint32 id)
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{
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switch (id) {
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case static_cast<quint32>(KeePass2::ProtectedStreamAlgo::ArcFourVariant):
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return KeePass2::ProtectedStreamAlgo::ArcFourVariant;
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case static_cast<quint32>(KeePass2::ProtectedStreamAlgo::Salsa20):
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return KeePass2::ProtectedStreamAlgo::Salsa20;
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case static_cast<quint32>(KeePass2::ProtectedStreamAlgo::ChaCha20):
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return KeePass2::ProtectedStreamAlgo::ChaCha20;
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default:
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return KeePass2::ProtectedStreamAlgo::InvalidProtectedStreamAlgo;
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}
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}
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