desmain.c

51系列计算DES的方法之一.....,很小的测试程序....

/*--------------------------------------------------------------------------------
DES.C: DES Algorithm Program 
--------------------------------------------------------------------------------*/
#include <string.h>
char bdata BM0,BM1,BM2,BM3,BM4,BM5,BM6,BM7;
extern void DES(char mode, char data *text,char xdata *key)small;
void main(void)
{
  char xdata key[8] = {0x01,0x23,0x45,0x67,0x89,0xab,0xcd,0xef};
//  char key2[16]={0x01,0x23,0x45,0x67,0x89,0xab,0xcd,0xef,0x01,0x23,0x45,0x67,0x89,0xab,0xcd,0xe7};
//  char key3[8]={0x88,0x99,0xaa,0xbb,0xcc,0xdd,0xee,0xff};
  char data sour[8] = {0x01,0x23,0x45,0x67,0x89,0xab,0xcd,0xef};
  char data dest[8];//={0xA2,0xD9,0x39,0x16,0x5D,0x26,0xA4,0xCA};

  memcpy(dest,sour,8);
  DES(0, dest, key);
  DES(0x20,dest,key);
  while (1);
}