wjcdestest.cpp

c语言实现DEC加密－源码

// 3-Des test

#include "WjcDes.h"
#include "stdio.h"
#include "string.h"
#include "memory.h"
#include <stdlib.h>

void main()
{
	char key[]={0,2,0,0,9,3,5,1,9,8,0,0,9,1,7},buf[255];
	char str[]="欢迎您来测试我的DES加密算法! \n"
				"-- 04网络江列琼2004551728\n"
			    "Email: [e-mail]";
	int count = 0;
	do{
		count++;
		memset(buf, 0, sizeof(buf));
		strcpy(buf, str);
	    if( 1 < count )puts("\n您输入的明文：");
		puts("-------------------------------\n");
		puts(buf);
		puts("\n-------------------------------");

		Des_Go(buf, buf, sizeof(str), key, sizeof(key), ENCRYPT);
		puts("\nDES 密文：");
		puts("-------------------------------\n");
		puts(buf);
		puts("\n-------------------------------");

		Des_Go(buf, buf, sizeof(str), key, sizeof(key), DECRYPT);
		puts("\nDES　解密后：");
		puts("-------------------------------\n");
		puts(buf);
		puts("\n-------------------------------");
		puts("按回车继续......");
		getchar();
		puts("\n\n\n");
		puts("===============================================================");
		puts("   请输入您要加密的内容(直接回车退出程序)：");
		str[0] = '\0';
		gets(str);
	}while('\0' != str[0]);
//	getchar();
}