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/*
dbx_tree: tree database driver for Miranda IM
Copyright 2007-2010 Michael "Protogenes" Kunz,
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
of the License, or (at your option) any later version.
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, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#pragma once
#include <stdint.h>
#include "sigslot.h"
#define __INTERFACE_ONLY__
#include "Cipher.h"
#undef __INTERFACE_ONLY__
#include "SHA256.h"
#include "Interface.h"
//#include "Thread.h"
#include <map>
#include <windows.h>
static const uint32_t cEncryptionChangingFlag = 0x80000000;
#pragma pack(push, 1)
typedef struct TFileEncryption {
uint32_t CipherID;
uint32_t CipherOldID;
uint32_t ConversionProcess;
uint8_t SHA[32];
uint8_t SHAOld[32];
uint32_t Reserved[2];
} TFileEncryption, *PFileEncryption;
#pragma pack(pop)
typedef struct TEncryption {
uint32_t CipherID;
wchar_t * Password;
} TEncryption, *PEncryption;
class CEncryptionManager
{
public:
CEncryptionManager();
~CEncryptionManager();
typedef struct {
TCHAR * FilePath;
TCHAR * FileName;
uint32_t ID;
wchar_t * Name;
wchar_t * Description;
} TCipherItem;
typedef std::map<uint32_t, TCipherItem> TCipherList;
static TCipherList* CipherList; // = NULL; see cpp
static uint32_t CipherListRefCount; // = 0; see cpp
static void LoadCipherList();
bool InitEncryption(TFileEncryption & Enc);
bool AlignData(uint32_t ID, uint32_t & Start, uint32_t & End);
uint32_t AlignSize(uint32_t ID, uint32_t Size);
bool IsEncrypted(uint32_t ID);
void Encrypt(void* Data, uint32_t DataLength, uint32_t ID, uint32_t StartByte);
void Decrypt(void* Data, uint32_t DataLength, uint32_t ID, uint32_t StartByte);
bool CanChangeCipher();
bool ChangeCipher(TEncryption & Encryption);
private:
bool m_Changing;
uint32_t m_ChangingProcess;
typedef enum TUsedCiphers {
CURRENT = 0,
OLD = 1,
COUNT = 2
} TUsedCiphers;
struct
{
CCipher * Cipher;
HMODULE CipherDLL;
} m_Ciphers[COUNT];
};
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