/*
** Copyright (c) 2008 - present, Alexis Megas.
** All rights reserved.
**
** Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions
** are met:
** 1. Redistributions of source code must retain the above copyright
**    notice, this list of conditions and the following disclaimer.
** 2. Redistributions in binary form must reproduce the above copyright
**    notice, this list of conditions and the following disclaimer in the
**    documentation and/or other materials provided with the distribution.
** 3. The name of the author may not be used to endorse or promote products
**    derived from Dooble without specific prior written permission.
**
** DOOBLE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
** DOOBLE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

#ifndef dooble_pbkdf2_h
#define dooble_pbkdf2_h

#include <QAtomicInteger>
#include <QByteArray>
#include <QObject>

class dooble_pbkdf2: public QObject
{
  Q_OBJECT

 public:
  dooble_pbkdf2(const QByteArray &password,
		const QByteArray &salt,
		int cipher_type_index,
		int hash_type_index,
		int iterations_count,
		int output_size);
  ~dooble_pbkdf2();
  QByteArray salt(void) const;
  QList<QByteArray> pbkdf2
    (QByteArray (*function) (const QByteArray &key,
			     const QByteArray &message)) const;
  static void test1(void);

 private:
  QAtomicInteger<short> m_interrupt;
  QByteArray m_password;
  QByteArray m_salt;
  int m_cipher_type_index;
  int m_hash_type_index;
  int m_iteration_count;
  int m_output_size;
  QByteArray x_or(const QByteArray &a, const QByteArray &b) const;

 private slots:
  void slot_interrupt(void);
};

#endif
