PROBLEM TO BE SOLVED: To allow for determination and management of the legitimacy of a beacon device transmitting a beacon signal.SOLUTION: A short-range wireless communication unit 201 of a beacon device 200 acquires reception beacon identification information for identifying the beacon device from a received beacon signal, a beacon signal determination unit 203 determines whether or not the reception beacon identification information has been stored in a peripheral information storage unit 230, a transmission reception unit 202 transmits beacon reception information, associating the reception beacon identification information and the fact whether or not it is a beacon device existing in the communication region thereof, to a management server 100, a legitimacy determination unit 102 of the management server 100 determines whether or not a beacon device corresponding to the beacon identification information is legitimate, based on the beacon reception information transmitted from the beacon device 200, and when a determination is made that the beacon device is not legitimate, an invalidation request unit 103 requests invalidation of an electronic certificate, corresponding to the beacon identification information, for an authentication station server 400 via a network.SELECTED DRAWING: Figure 2
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