main.c

DES的C语言算法,是一个完整C51工程,直接下载就可以应用了.

#include <REG52.H>

void DES(unsigned char idata * DATA_ADDR,unsigned char idata *KEY_ADDR,bit JA_JE_B);

main()
{
	unsigned char Key[8], Data[8];
	Key[0] = 0;
	Key[1] = 1;
	P0 = 0xff;
	DES(Data, Key,1);
	DES(Data, Key,0);
	P0 = 0x0;
	while(1);
}