xts.h

使用visual studio 2005 开发的开源文件、磁盘加密软件。这是6.1a版。加密自己资料的好工具。也是学习的优秀范本。结成了众多加密算法。

/*
 Copyright (c) 2008 TrueCrypt Foundation. All rights reserved.

 Governed by the TrueCrypt License 2.6 the full text of which is contained
 in the file License.txt included in TrueCrypt binary and source code
 distribution packages.
*/

#ifndef XTS_H
#define XTS_H

// Header files (optional)

#include "Tcdefs.h"
#include "Common/Endian.h"
#include "Crypto.h"

#ifdef __cplusplus
extern "C" {
#endif

// Macros

#ifndef LITTLE_ENDIAN
#	define LITTLE_ENDIAN	1
#endif

#ifndef BIG_ENDIAN
#	define BIG_ENDIAN		2
#endif

#ifndef BYTE_ORDER
#	define BYTE_ORDER		LITTLE_ENDIAN
#endif

#ifndef LE64
#	if BYTE_ORDER == LITTLE_ENDIAN
#		define LE64(x)	(x)
#	endif
#endif

// Custom data types

#ifndef TC_LARGEST_COMPILER_UINT
#	ifdef TC_NO_COMPILER_INT64
		typedef unsigned __int32	TC_LARGEST_COMPILER_UINT;
#	else
		typedef unsigned __int64	TC_LARGEST_COMPILER_UINT;
#	endif
#endif

#ifndef TCDEFS_H
typedef union 
{
	struct 
	{
		unsigned __int32 LowPart;
		unsigned __int32 HighPart;
	};
#	ifndef TC_NO_COMPILER_INT64
	unsigned __int64 Value;
#	endif

} UINT64_STRUCT;
#endif

// Public function prototypes

void EncryptBufferXTS (unsigned __int8 *buffer, TC_LARGEST_COMPILER_UINT length, const UINT64_STRUCT *startDataUnitNo, unsigned int startCipherBlockNo, unsigned __int8 *ks, unsigned __int8 *ks2, int cipher);
void DecryptBufferXTS (unsigned __int8 *buffer, TC_LARGEST_COMPILER_UINT length, const UINT64_STRUCT *startDataUnitNo, unsigned int startCipherBlockNo, unsigned __int8 *ks, unsigned __int8 *ks2, int cipher);

#ifdef __cplusplus
}
#endif

#endif	// #ifndef XTS_H