getlin.cpp

3DES加密与解密的算法。 该算法通过编译

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

int main()
{

    LGIM netinfo;   
    netinfo.GetIpMac();  

	char key[8],buf[255],buf2[255],lin[255];
	unsigned char ubuf[255],ubuf2[255];
    unsigned char *p;
	char str[]="300";
    int i;

	for(i=0;i<8;i++)
	{
		key[i]=netinfo.mackey[i];
		printf("%c",key[i]);
	}
    printf("\n");
	memset(buf, 0, sizeof(buf));
	memset(buf2, 0, sizeof(buf2));
	memset(ubuf2, 0, sizeof(ubuf2));

	strcpy(buf, str);
	puts("\nBefore encrypting");
	puts(buf);

	Des_Go(buf, buf, sizeof(str), key, sizeof(key), ENCRYPT);
/*	puts("\nAfter encrypting");
	puts(buf);*/

	memcpy(ubuf,buf,8);

    for(i=0;i<8;i++)
	  sprintf(lin+(i*2),"%x",ubuf[i]);

	printf("lin=%s\n",lin);





    p =(unsigned char*)&ubuf2;
    for(i=0;i<8;i++)
    {
        *p=GetByte(lin+i*2);
		p++;
    }

	memcpy(buf2,ubuf2,8);
/*	printf("buf2=%s\n",buf2);*/

	Des_Go(buf2, buf2, sizeof(str), key, sizeof(key), DECRYPT);
	puts("\nAfter decrypting");
	puts(buf2);

	return 0;
}