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dc.contributor.authorSaboori, A.en
dc.contributor.authorHadjicostis, Christoforos N.en
dc.creatorSaboori, A.en
dc.creatorHadjicostis, Christoforos N.en
dc.description.abstractMotivated by security applications where the initial state of a system needs to be kept secret (opaque) to outside observers (intruders), we formulate, analyze and verify the notion of initial-state opacity in discrete event systems. Specifically, a system is initial-state opaque if the membership of its true initial state to a set of secret states remains opaque to an intruder who is modeled as an observer of the system activity through some projection map. In other words, based on observations through this map, the observer is never certain that the initial state of the system is within the set of secret states. To verify initial-state opacity, we address the initial-state estimation problem in discrete event systems via the construction of an initial-state estimator. This estimator captures estimates of the initial state of the system which are consistent with all observations obtained so far. We also analyze the properties and complexity of the initial-state estimator. ©2008 IEEE.en
dc.sourceProceedings - 9th International Workshop on Discrete Event Systems, WODES' 08en
dc.sourceProceedings - 9th International Workshop on Discrete Event Systems, WODES' 08en
dc.subjectDiscrete event systemsen
dc.subjectTechnical presentationsen
dc.subjectState estimationen
dc.subjectEstimation problemsen
dc.subjectSecurity applicationsen
dc.subjectState estimatorsen
dc.subjectInitial statesen
dc.subjectOptical propertiesen
dc.titleVerification of initial-state opacity in security applications of DESen
dc.description.endingpage333Πολυτεχνική Σχολή / Faculty of EngineeringΤμήμα Ηλεκτρολόγων Μηχανικών και Μηχανικών Υπολογιστών / Department of Electrical and Computer Engineering
dc.type.uhtypeConference Objecten
dc.contributor.orcidHadjicostis, Christoforos N. [0000-0002-1706-708X]

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