WPXEncryption.h

Go to the documentation of this file.
00001 /* libwpd
00002  * Copyright (C) 2007 Jaroslav Fojtik (JaFojtik@seznam.cz)
00003  * Copyright (C) 2007 Fridrich Strba (fridrich.strba@bluewin.ch)
00004  *  
00005  * This library is free software; you can redistribute it and/or
00006  * modify it under the terms of the GNU Library General Public
00007  * License as published by the Free Software Foundation; either
00008  * version 2 of the License, or (at your option) any later version.
00009  *
00010  * This library is distributed in the hope that it will be useful,
00011  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00012  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013  * Library General Public License for more details.
00014  *
00015  * You should have received a copy of the GNU Library General Public
00016  * License along with this library; if not, write to the Free Software
00017  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
00018  *
00019  * For further information visit http://libwpd.sourceforge.net
00020  */
00021 
00022 /* "This product is not manufactured, approved, or supported by 
00023  * Corel Corporation or Corel Corporation Limited."
00024  */
00025 
00026 #ifndef WPXENCRYPTION_H
00027 #define WPXENCRYPTION_H
00028 
00029 #include "libwpd_types.h"
00030 #include "WPXString.h"
00031 #include <stdio.h>
00032 
00033 class WPXInputStream;
00034 
00035 class WPXEncryption
00036 {
00037 public:
00038         WPXEncryption(const char *password, const size_t encryptionStartOffset = 0);
00039         ~WPXEncryption();
00040         
00041         const unsigned char *readAndDecrypt(WPXInputStream *input, size_t numBytes, size_t &numBytesRead);
00042         uint16_t getCheckSum() const;
00043         
00044         void setEncryptionStartOffset(size_t encryptionStartOffset) { m_encryptionStartOffset = encryptionStartOffset; }
00045         size_t getEncryptionStartOffset() const { return m_encryptionStartOffset; }
00046         
00047         void setEncryptionMaskBase(unsigned char encryptionMaskBase) { m_encryptionMaskBase = encryptionMaskBase; }
00048         unsigned char getEncryptionMaskBase() const { return m_encryptionMaskBase; }
00049         
00050         const WPXString& getEncryptionPassword() const { return m_password; }
00051 
00052 private:
00053         unsigned char *m_buffer;
00054         WPXString m_password;
00055         size_t m_encryptionStartOffset;
00056         unsigned char m_encryptionMaskBase;
00057 };
00058 
00059 #endif /* WPXENCRYPTION_H */

Generated on Mon Nov 15 19:50:26 2010 for libwpd by doxygen 1.5.4