#ifndef   _DES_H__
#define   _DES_H__

#include "ArithDLL.h"

#ifndef   ENCRYPT
#define   ENCRYPT  0         /* DES 方向 */
#define   DECRYPT  1
#endif

#ifndef   STAND
#define   STAND    0         /* MAC 標準 */
#define   BPI      1
#endif

//#define   MAINKEY     "FDC92F6803DB16F1"

void encrypt0(unsigned char *text, unsigned char *mtext);
void discrypt0(unsigned char *mtext, unsigned char *text);
void expand0(unsigned char *in, char *out);
void compress0(unsigned char *out, unsigned char *in);
void compress016(unsigned char *out, unsigned char *in);

void setkeystar(unsigned char *bits);
void LS(char *bits, char *buffer, int count);
void son(char *cc, char *dd, char *kk);

void ip(unsigned char *text, unsigned char *ll, unsigned char *rr);
void _ip(unsigned char *text, unsigned char *ll, unsigned char *rr);

void FF(int n, char *ll, char *rr, char *LL, char *RR);
void s_box(char *aa, char *bb);

/*
       DES加密解密程序
       參數(shù):  source --- 源(8字節(jié)16進制)
              dest   --- 目標(8字節(jié)16進制)
              key    --- KEY值(8字節(jié)16進制)
              flag   --- ENCRYPT 加密
                         DECRYPT 解密
*/
ARITHDLL_API void WINAPI Des(unsigned char *source, unsigned char *dest,
			unsigned char *key, unsigned char flag);

ARITHDLL_API void WINAPI DesMac(unsigned char *source, int iLen,
			unsigned char *dest, unsigned char *key);
ARITHDLL_API void WINAPI Do_XOR(unsigned char *dest, unsigned char *source, int size);
ARITHDLL_API void WINAPI HEX_2_DSP(unsigned char *hex, unsigned char *dsp, int count);
ARITHDLL_API void WINAPI DSP_2_HEX(unsigned char *dsp, unsigned char *hex, int count);
#endif