+ if(!strcmp(plain,plain_new)) printf("looks good!\n");
+
+ printf("cbc mode:\n");
+ memset(crypted,0,LEN);
+ memset(plain_new,0,LEN);
+ printf("plain: ");
+ for(i=0;i<LEN;i++) printf("%02x ",plain[i]);
+ puts("");
+ des_encrypt(plain,crypted,key,LEN,MODE_CBC);
+
+ /* test */