State-labeled safety analysis of modular observers for opacity verification
Artikel i vetenskaplig tidskrift, 2022
Verification of opacity and anonymity for modular systems is in this paper formulated as safety analysis of local observers with state labels. A unified modeling strategy is presented based on a generalized synchronous composition, including both shared and non-shared state labels. The proposed modeling approach is shown to be flexible and general, making it possible to solve both local, global, and arbitrarily joint secret state problems simultaneously. A scalable modular n-floor, m-elevator security benchmark problem is also formulated and evaluated by two powerful safety analysis methods. It is shown that current-state opacity for non-trivial complex systems involving more than 1025 observer states can be verified in about one second.
current-state opacity
Labeling
Observers
Safety
state-labels
Benchmark testing
Modular transition systems
Security
safety analysis.
Synchronization
Privacy
Författare
Bengt Lennartson
Chalmers, Elektroteknik, System- och reglerteknik
Mona Noori-Hosseini
Volvo Cars
C. N. Hadjicostis
University of Cyprus
IEEE Control Systems Letters
24751456 (eISSN)
Vol. 6 2936-2941Ämneskategorier
Teknisk mekanik
Reglerteknik
Datavetenskap (datalogi)
DOI
10.1109/LCSYS.2022.3176531