Abstract: A method of controlling access to a location secured by a lock mechanism. An access control management system (ACMS) administrates electronic keys for multiple locations and users carrying mobile units. A lock mechanism controls the lock mechanism at the location. Each of data records associated with lock control units includes key generation data for generating an electronic key for a corresponding lock control unit. A generated key is communicated from the ACMS to the user mobile unit. The key indicates an access right to the location and has an associated lock control unit identifier. The key is communicated from the user mobile unit to the lock control unit at the location, which authenticates the key and, subject to successful authentication of the key, operates the lock mechanism. The key includes a data item cryptographically protected between the ACMS and the lock control unit using a cryptographic key unknown to the user mobile unit.

Abstract: A key box (1) has a housing (10) and a cooperating door (11) which, in combination, form a secured space (9) when the door (11) is closed, wherein the door (11) is locked by means of an electric locking system. The locking system comprises an electric locking mechanism (21), an electronic control unit (22) and a wireless communication unit (23). The electronic control unit (22) is configured to communicate wirelessly with a mobile unit (40) by means of the wireless communication unit (23). The electronic control unit (22) is configured to verify access rights relative to the mobile unit (40) and, if the access rights are authenticated, to cancel the locking effect of the locking mechanism (21). The control unit (22) and the wireless communication unit (23) are accommodated within the secured space (9).

Abstract: A method of configuring a lock control unit of an access control system. The unit has an associated lock control unit identifier and an electronic key, and can communicate via a wireless communications channel with a mobile unit and can receive an electronic key from the mobile unit to verify a received electronic key and, subject to successful verification, to activate the lock mechanism. A message having a location address is received from an access control management system. Lock control unit(s) are detected communicating via the channel in a proximity of the technician mobile unit. A respective lock control unit identifier is received from each detected unit. The unit connected to the lock mechanism is identified, based on the received identifiers. An electronic key associated with the identifier is received from the ACMS. Commands are sent to the lock control unit causing the lock control unit to perform configuration.

Abstract: A method of configuring a lock control unit of an access control system, the lock control unit having associated with it a lock control unit identifier and an electronic key, the lock control unit comprising means for wireless communication via a wireless communications channel with a user mobile unit, and adapted to receive an a data item indicative of an electronic key from a user mobile unit, to verify a received electronic key and, subject to successful verification, to activate the lock mechanism, the method comprising performing the following steps by a technician mobile unit: receiving a message from an access control management system, the message comprising an address indicative of the location; detecting one or more lock control units communicating via the wireless communications channel in a proximity of the technician mobile unit; and receiving from each detected lock control unit a respective lock control unit identifier; identifying, based on the received lock control unit identifiers, the lock