test.c

数字签名技术。通过该程序代码

#include "G__des.c"

int main(void)
{
	unsigned char buf[37]="abcdefghijklmnopqrstuvwxyz1234567890";
	unsigned char key[8]={"testdes."};
	int flag=0;
	des_key skey;

	if((flag=des_setup(key,8,0,&skey))!=CRYPT_OK)
		printf("error!\n");

	des_ecb_encrypt(buf,buf,&skey);
	printf("crypted text:%s\n",buf);
	des_ecb_decrypt(buf,buf,&skey);
	printf("decrypted text:%s\n",buf);
}