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1 VERTECS - Verification models and techniques applied to testing and control of reactive systems Inria Rennes – Bretagne Atlantique 2 S4 - System synthesis and supervision, scenarios IRISA - Institut de Recherche en Informatique et Systèmes Aléatoires, Inria Rennes – Bretagne Atlantique

Abstract : Given a finite transition system and a regular predicate, we address the problem of computing a controller enforcing the opacity of the predicate against an attacker who partially observes the system, supposedly trying to push the system to reveal the predicate. Assuming that the controller can only control a subset of the events it observes possibly different from the ones of the attacker, we show that an optimal control always exists and provide sufficient conditions under which it is regular and effectively computable. These conditions rely on the inclusion relationships between the controllable alphabet and the observable alphabets of the attacker and of the controller.

Keywords : Control security opacity discrete event systems partial observation

Autor: Jérémy Dubreil - Philippe Darondeau - Hervé Marchand -

Fuente: https://hal.archives-ouvertes.fr/


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