Management of badge access to different zones

Details Management of badge access to different zones Management of badge access to different zones

2011-06-28

2011-06-28

Lee, Benjamin C (Department: 2612)

Communications: electrical

Selective

Interrogation response

C340S010420, C340S005200, C340S005210

Reexamination Certificate

active

07969285

ABSTRACT:
A method executed in a badge, a badge reader, and a server for controlling access to different zones. The badge obtains from the badge reader an invitation to request access to a zone Zout. The badge ascertains that the badge is authorized to access the zone Zout. The badge has a current badge identifier ID. The badge retrieves a zone-associated badge identifier IDout associated with the zone Zout. The badge issues to the badge reader a request for access to the zone Zout. The request includes: the current badge identifier ID, the zone-associated badge identifier IDout; and a current badge key K. The badge receives from the badge reader either an authorization to access the zone Zout during a specified period of time Tout or a refusal to grant access to the zone Zout. The server implements the distribution of keys used by the badge reader and badge.

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