des_is_weak_key
return des_is_weak_key((void *)key->v);
return (des_is_weak_key((void *)key->v) ||
des_is_weak_key((void *)(key->v + 8)) ||
des_is_weak_key((void *)(key->v + 16)));
int des_is_weak_key(des_cblock *);
if (des_is_weak_key(key))