AUTONOMOUS RANDOM DYNAMIC CRYPTOGRAM LOCK SYSTEM

摘要

This invention provides an autonomous random dynamic cryptogram lock system which comprises a lock body and a key body. There are non-volatile memories in both the lock body and key body respectively and each memory stores a set of cryptogram corresponding. When unlocking the microprocessor in the lock body checks the cryptograms. If matching, the lock is unlocked, otherwise it gives up alarm. After unlocking, the microprocessor renews a set of the corresponding real random cryptogram in both memories for unlocking next time. It accomplishes one cryptoguard function every time.