Access control system for restricting access to authorised...

G - Physics – 07 – C

Patent

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Details

G07C 9/00 (2006.01) A47G 29/12 (2006.01) A47G 29/14 (2006.01) G07F 7/08 (2006.01) G07F 7/10 (2006.01) G07F 7/12 (2006.01)

Patent

CA 2171626

An access control system for restricting access to authorised hours and renewing it using a portable storage medium. The system comprises a unit (LE) for issuing electronic keys consisting of data relating to a given time period and the signature of said data. The keys are loaded onto media such as smart cards (C). Electronic locks (L) capable of checking the signatures are installed at various physical or logical locations where access is to be restricted. The system is useful for controlling access to buildings or computer systems.

L'invention concerne un système de contrôle d'accès limités à des plages horaires autorisées et renouvelables au moyen d'un support de mémorisation portable. Le système comporte pour cela un organe (LE) produisant des clés électroniques composées d'une donnée relative à une plage horaire et de la signature de cette donnée. Ces clés sont chargées dans des supports tels que des cartes à mémoire (C). Des serrures électroniques (L) aptes à vérifier les signatures sont implantéees à différents emplacements (physiques ou logiques) dont on veut protéger l'accès. Application au contrôle d'accès de bâtiments ou de systèmes informatiques.

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