Patent ID: 7821395
Filing Date: 2010-10-26
Classification: G07C,G07F

Abstract:
1. An access control system for an enclosure wherein the enclosure has a door openable for accessing the contents of the enclosure, an electronic lock for unlocking the door of the enclosure, and a programming device configured for programming said electronic lock, wherein: the programming device includes a first access code, whereby the programming device encrypts and transfers a first and second non-identical encrypted messages to the lock, at least one of the non-identical encryption messages containing the first access code; the lock including a non-volatile memory wherein the lock receives the first non-identical encrypted message during a programming mode of operation, transfers a third encrypted message comprising a lock identification number to the electronic key after receiving the first encrypted message from the electronic key, receives the second non-identical encrypted message from the electronic key after transferring the third encrypted message to the electronic key, said second encrypted message formulated via data contained in the third encrypted message, obtains the first access code, and stores the first access code in the non-volatile memory to form a first stored code.