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https://github.com/keepassxreboot/keepassxc.git
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c7d318236f
Replace a QVector for the wordlist with a QSet. This removes all duplicate entries in a given wordlist. Thus, it hinders a malicious wordlist that has the proper length (>4000 entries) but with repetitions (effectively << 4000 entries) to be used and potentially create weaker passphrases than estimated. Example: List with 4000 items but only 64 unique words would lead to only 48 bit of Entropy instead of ~95 bit!
71 lines
2.3 KiB
C++
71 lines
2.3 KiB
C++
/*
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* Copyright (C) 2019 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 "TestPassphraseGenerator.h"
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#include "config-keepassx-tests.h"
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#include "core/PassphraseGenerator.h"
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#include "crypto/Crypto.h"
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#include <QRegularExpression>
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#include <QTest>
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QTEST_GUILESS_MAIN(TestPassphraseGenerator)
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void TestPassphraseGenerator::initTestCase()
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{
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QVERIFY(Crypto::init());
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}
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void TestPassphraseGenerator::testWordCase()
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{
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PassphraseGenerator generator;
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generator.setWordSeparator(" ");
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QVERIFY(generator.isValid());
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QString passphrase;
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passphrase = generator.generatePassphrase();
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QCOMPARE(passphrase, passphrase.toLower());
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generator.setWordCase(PassphraseGenerator::LOWERCASE);
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passphrase = generator.generatePassphrase();
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QCOMPARE(passphrase, passphrase.toLower());
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generator.setWordCase(PassphraseGenerator::UPPERCASE);
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passphrase = generator.generatePassphrase();
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QCOMPARE(passphrase, passphrase.toUpper());
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generator.setWordCase(PassphraseGenerator::TITLECASE);
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passphrase = generator.generatePassphrase();
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QRegularExpression regex("^(?:[A-Z][a-z-]* )*[A-Z][a-z-]*$");
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QVERIFY2(regex.match(passphrase).hasMatch(), qPrintable(passphrase));
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}
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void TestPassphraseGenerator::testUniqueEntriesInWordlist()
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{
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PassphraseGenerator generator;
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// set the limit down, so we don;t have to do a very large file
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generator.m_minimum_wordlist_length = 4;
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// link to bad wordlist
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QString path = QString(KEEPASSX_TEST_DATA_DIR).append("/wordlists/bad_wordlist_with_duplicate_entries.wordlist");
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// setting will work, it creates the warning however, and isValid will fail
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generator.setWordList(path);
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// so this fails
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QVERIFY(!generator.isValid());
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}
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