KEY-LOCK SYSTEM

摘要

A feature of the system is that there is neither master-key nor emergency-code by the manufacturers of by said authorized people to unlock a closure. The only authorized person for a lock (200) is its owner him/herself. According to the invention the new features are achieved by using class-codes and unique-codes as parts of the messages between the locks (200) and the keys (100), as well as of dynamic, elative "labels" for the proper keys in the lock's memory. These labels are authorities: indicating whether a key is able to make another key (subsequently inserted in the same lock) (de)assign to that lock; and parents: indicating which one of the authority possessing keys made a key proper in the lock.