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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/>.
*/
#ifndef KEEPASSX_SYMMETRICCIPHERSTREAM_H
#define KEEPASSX_SYMMETRICCIPHERSTREAM_H
#include <QtCore/QByteArray>
#include <QtCore/QScopedPointer>
#include "crypto/SymmetricCipher.h"
#include "streams/LayeredStream.h"
class SymmetricCipherStream : public LayeredStream
{
Q_OBJECT
public:
SymmetricCipherStream(QIODevice* baseDevice, SymmetricCipher::Algorithm algo, SymmetricCipher::Mode mode,
SymmetricCipher::Direction direction, const QByteArray& key, const QByteArray& iv);
~SymmetricCipherStream();
bool reset();
void close();
protected:
qint64 readData(char* data, qint64 maxSize);
qint64 writeData(const char* data, qint64 maxSize);
private:
bool readBlock();
bool writeBlock(bool lastBlock);
const QScopedPointer<SymmetricCipher> m_cipher;
QByteArray m_buffer;
int m_bufferPos;
bool m_bufferFilling;
bool m_error;
};
#endif // KEEPASSX_SYMMETRICCIPHERSTREAM_H
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