main.c

一下完完整的DES和3DES加密和解密程序

// 3-Des test

#include "conio.h"
#include "stdio.h"
#include "string.h"
#include "memory.h"
#include "Des.h"

//U8 gbDesKey[17]={0xDE, 0x10, 0x9C, 0x58, 0xE8, 0xA4, 0xA6, 0x30};
U8 gbDesKey[17]={0x13, 0x34, 0x57, 0x79, 0x9B, 0xBC, 0xDF, 0xF1};
//U8 gbDesKey[17]={"00000000"};
U8 gbDesKeyLen=8;

void main(void)
{
#if 1
	U8 len, buf[255];
	U8 str[]="Welcome to 3-DES Test! --杨鹏辉!\nShenZhen Triones 深圳创扬通信.\nEmail: [e-mail] 上海电信.";

	memset(buf, 0, sizeof(buf));
	strcpy(buf, str); //to sure size of 'buf' large than size of 'str'
	puts("\nBefore encrypting");
	puts(buf);

	len = strlen(buf);
	DesGo(buf, len, ENCRYPT);
	puts("\nAfter encrypting");
	puts(buf);

	DesGo(buf, len, DECRYPT);
	puts("\nAfter decrypting");
	puts(buf);
#else
	S8 i, buf[17];
//	S8 str[9]={0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF};
	S8 str[9]={"11111111"};
	U8 ch;

	clrscr();
	memset(buf, 0, sizeof(buf));
	strcpy(buf, str); //to sure size of 'buf' large than size of 'str'
	printf("\nBefore encrypting: ");
//	puts(buf);
	for(i=0; i<8; i++)
	{
		ch = buf[i];
		printf("%02X ", ch);
	}

	DesGo(buf, 8, ENCRYPT);
	printf("\n\nAfter encrypting:  ");
	for(i=0; i<8; i++)
	{
		ch = buf[i];
		printf("%02X ", ch);
	}

	DesGo(buf, 8, DECRYPT);
	printf("\n\nAfter decrypting:  ");
	for(i=0; i<8; i++)
	{
		ch = buf[i];
		printf("%02X ", ch);
	}
//	puts(buf);
#endif
	getch();
}