Fawkes API
Fawkes Development Version
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00001 00002 /*************************************************************************** 00003 * decrypt.h - WorldInfo decryption routine 00004 * 00005 * Created: Thu May 03 15:53:20 2007 00006 * Copyright 2006-2007 Tim Niemueller [www.niemueller.de] 00007 * 00008 ****************************************************************************/ 00009 00010 /* This program is free software; you can redistribute it and/or modify 00011 * it under the terms of the GNU General Public License as published by 00012 * the Free Software Foundation; either version 2 of the License, or 00013 * (at your option) any later version. A runtime exception applies to 00014 * this software (see LICENSE.GPL_WRE file mentioned below for details). 00015 * 00016 * This program is distributed in the hope that it will be useful, 00017 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00018 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00019 * GNU Library General Public License for more details. 00020 * 00021 * Read the full text in the LICENSE.GPL_WRE file in the doc directory. 00022 */ 00023 00024 #ifndef __NETCOMM_WORLDINFO_DECRYPT_H_ 00025 #define __NETCOMM_WORLDINFO_DECRYPT_H_ 00026 00027 #include <core/exception.h> 00028 #include <cstddef> 00029 00030 namespace fawkes { 00031 00032 class MessageDecryptionException : public Exception 00033 { 00034 public: 00035 MessageDecryptionException(const char *msg); 00036 }; 00037 00038 00039 class WorldInfoMessageDecryptor 00040 { 00041 public: 00042 WorldInfoMessageDecryptor(const unsigned char *key, const unsigned char *iv); 00043 ~WorldInfoMessageDecryptor(); 00044 00045 void set_plain_buffer(void *buffer, size_t buffer_length); 00046 void set_crypt_buffer(void *buffer, size_t buffer_length); 00047 00048 size_t decrypt(); 00049 00050 private: 00051 void *plain_buffer; 00052 size_t plain_buffer_length; 00053 void *crypt_buffer; 00054 size_t crypt_buffer_length; 00055 00056 const unsigned char *key; 00057 const unsigned char *iv; 00058 }; 00059 00060 } // end namespace fawkes 00061 00062 00063 #endif