NDLI: Opacity formulations and verification in discrete event systems

Content Provider	IEEE Xplore Digital Library
Author	Hadjicostis, C.N. Keroglou, C.
Copyright Year	2014
Description	Author affiliation: ECE Dept., Univ. of Cyprus, Nicosia, Cyprus (Hadjicostis, C.N.; Keroglou, C.)
Abstract	In many emerging security applications, a property of a system, that may reveal important details about its behaviour, needs to be kept secret (opaque) to outside observers (intruders). Motivated by such applications, several authors have formalized, analyzed, and described methods to verify notions of opacity in discrete event systems of interest. This paper offers a review of various definitions of opacity, along with methodologies for their verification and complexity analysis. We review state-based notions of opacity (namely, current-state opacity and initial-state opacity) in non-deterministic finite automata, as well as their extensions to stochastic settings. Specifically, we discuss these notions of opacity and methods to verify them in discrete event systems modeled by non-deterministic finite automata (NFA's) or probabilistic finite automata (PFA's).
Starting Page	1
Ending Page	12
File Size	591993
Page Count	12
File Format	PDF
ISBN	9781479948451
DOI	10.1109/ETFA.2014.7005032
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-09-16
Publisher Place	Spain
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Automata Vehicles Observers Probabilistic logic Kinematics Discrete-event systems Security DES Opacity automata probabilistic automata security and privacy
Content Type	Text
Resource Type	Article

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