mit_des_key_sched
int mit_des_key_sched(mit_des_cblock, mit_des_key_schedule);
retval = mit_des_key_sched(key, sched);
mit_des_key_sched(zero_key, sched);
mit_des_key_sched(key3, sched);
mit_des_key_sched(key2, sched);
mit_des_key_sched(default_key, sched);