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Add KeePass2RandomStream class.

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It's responsible for processing protected strings in kdbx files.
This commit is contained in:
Felix Geyer 2011-07-07 00:08:37 +02:00
parent 1d6e106aee
commit 58e048be96
6 changed files with 228 additions and 0 deletions
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tests/TestKeePass2RandomStream.cpp Normal file
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/*
* Copyright (C) 2010 Felix Geyer <debfx@fobos.de>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 or (at your option)
* version 3 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "TestKeePass2RandomStream.h"
#include "crypto/CryptoHash.h"
#include "crypto/SymmetricCipher.h"
#include "format/KeePass2.h"
#include "format/KeePass2RandomStream.h"
#include <QtTest/QTest>
void TestKeePass2RandomStream::test()
{
const QByteArray key("\x11\x22\x33\x44\x55\x66\x77\x88");
const int SIZE = 128;
SymmetricCipher cipher(SymmetricCipher::Salsa20, SymmetricCipher::Stream, SymmetricCipher::Encrypt,
CryptoHash::hash(key, CryptoHash::Sha256), KeePass2::INNER_STREAM_SALSA20_IV);
const QByteArray data(QByteArray::fromHex("601ec313775789a5b7a7f504bbf3d228f443e3ca4d62b59aca84e990cacaf5c5"
"2b0930daa23de94ce87017ba2d84988ddfc9c58db67aada613c2dd08457941a6"
"1abc932417521ca24f2b0459fe7e6e0b090339ec0aa6faefd5ccc2c6f4ce8e94"
"1e36b26bd1ebc670d1bd1d665620abf74f78a7f6d29809585a97daec58c6b050"));
QByteArray cipherPad;
cipherPad.fill('\0', SIZE);
cipher.processInPlace(cipherPad);
QByteArray cipherData;
cipherData.resize(SIZE);
for (int i=0; i<SIZE; i++) {
cipherData[i] = data[i] ^ cipherPad[i];
}
KeePass2RandomStream randomStream(key);
QByteArray randomStreamData;
randomStreamData.append(randomStream.process(data.mid(0, 7)));
randomStreamData.append(randomStream.process(data.mid(7, 1)));
QByteArray tmpData = data.mid(8, 12);
randomStream.processInPlace(tmpData);
randomStreamData.append(tmpData);
randomStreamData.append(randomStream.process(data.mid(20, 44)));
randomStreamData.append(randomStream.process(data.mid(64, 64)));
SymmetricCipher cipherEncrypt(SymmetricCipher::Salsa20, SymmetricCipher::Stream, SymmetricCipher::Encrypt,
CryptoHash::hash(key, CryptoHash::Sha256), KeePass2::INNER_STREAM_SALSA20_IV);
QByteArray cipherDataEncrypt = cipherEncrypt.process(data);
QCOMPARE(randomStreamData.size(), SIZE);
QCOMPARE(cipherData, cipherDataEncrypt);
QCOMPARE(randomStreamData, cipherData);
}
QTEST_MAIN(TestKeePass2RandomStream);