00001 /* -*- Mode: C++; c-default-style: "k&r"; indent-tabs-mode: nil; tab-width: 2; c-basic-offset: 2 -*- */ 00002 00003 /* libstaroffice 00004 * Version: MPL 2.0 / LGPLv2+ 00005 * 00006 * The contents of this file are subject to the Mozilla Public License Version 00007 * 2.0 (the "License"); you may not use this file except in compliance with 00008 * the License or as specified alternatively below. You may obtain a copy of 00009 * the License at http://www.mozilla.org/MPL/ 00010 * 00011 * Software distributed under the License is distributed on an "AS IS" basis, 00012 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License 00013 * for the specific language governing rights and limitations under the 00014 * License. 00015 * 00016 * Major Contributor(s): 00017 * Copyright (C) 2002 William Lachance (wrlach@gmail.com) 00018 * Copyright (C) 2002,2004 Marc Maurer (uwog@uwog.net) 00019 * Copyright (C) 2004-2006 Fridrich Strba (fridrich.strba@bluewin.ch) 00020 * Copyright (C) 2006, 2007 Andrew Ziem 00021 * Copyright (C) 2011, 2012 Alonso Laurent (alonso@loria.fr) 00022 * 00023 * 00024 * All Rights Reserved. 00025 * 00026 * For minor contributions see the git repository. 00027 * 00028 * Alternatively, the contents of this file may be used under the terms of 00029 * the GNU Lesser General Public License Version 2 or later (the "LGPLv2+"), 00030 * in which case the provisions of the LGPLv2+ are applicable 00031 * instead of those above. 00032 */ 00033 00034 /* 00035 * StarEncryption to read/parse some basic encryption in StarOffice documents 00036 * 00037 */ 00038 #ifndef STAR_ENCRYPTION 00039 # define STAR_ENCRYPTION 00040 00041 #include <vector> 00042 00043 #include "libstaroffice_internal.hxx" 00044 #include "STOFFDebug.hxx" 00045 00051 class StarEncryption 00052 { 00053 public: 00055 StarEncryption(); 00057 explicit StarEncryption(std::string const &password); 00059 virtual ~StarEncryption(); 00060 00062 bool decode(std::vector<uint8_t> &data) const 00063 { 00064 return decode(data, m_password); 00065 } 00067 bool checkPassword(uint32_t date, uint32_t time, std::vector<uint8_t> const &cryptDateTime) const; 00088 bool guessPassword(uint32_t date, uint32_t time, std::vector<uint8_t> const &cryptDateTime); 00089 00091 static STOFFInputStreamPtr decodeStream(STOFFInputStreamPtr input, uint8_t mask); 00102 static uint8_t getMaskToDecodeStream(uint8_t src, uint8_t dest); 00103 protected: 00105 static bool decode(std::vector<uint8_t> &data, std::vector<uint8_t> const &cryptPasswd); 00113 static bool findEncryptedPassword(std::vector<uint8_t> const &src, std::vector<uint8_t> const &dest, uint8_t c0c1, std::vector<uint8_t> &crypter); 00115 std::vector<uint8_t> m_password; 00116 }; 00117 #endif 00118 // vim: set filetype=cpp tabstop=2 shiftwidth=2 cindent autoindent smartindent noexpandtab: