State-Based Opacity Verification of Networked Discrete Event Systems Using Labeled Petri Nets

doi:10.1109/JAS.2023.124128

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	State-Based Opacity Verification of Networked Discrete Event Systems Using Labeled Petri Nets
	Yifan Dong; Naiqi Wu; Zhiwu Li
刊名	IEEE/CAA Journal of Automatica Sinica
	2024
卷号	11 期号:5 页码:1274-1291
关键词	Labeled Petri net multi-valued decision diagram networked discrete event system state-based opacity
ISSN号	2329-9266
DOI	10.1109/JAS.2023.124128
英文摘要	The opaque property plays an important role in the operation of a security-critical system, implying that pre-defined secret information of the system is not able to be inferred through partially observing its behavior. This paper addresses the verification of current-state, initial-state, infinite-step, and K-step opacity of networked discrete event systems modeled by labeled Petri nets, where communication losses and delays are considered. Based on the symbolic technique for the representation of states in Petri nets, an observer and an estimator are designed for the verification of current-state and initial-state opacity, respectively. Then, we propose a structure called an I-observer that is combined with secret states to verify whether a networked discrete event system is infinite-step opaque or K-step opaque. Due to the utilization of symbolic approaches for the state-based opacity verification, the computation of the reachability graphs of labeled Petri nets is avoided, which dramatically reduces the computational overheads stemming from networked discrete event systems.
内容类型	期刊论文
源URL	[http://ir.ia.ac.cn/handle/173211/55715]
专题	自动化研究所_学术期刊_IEEE/CAA Journal of Automatica Sinica
推荐引用方式 GB/T 7714	Yifan Dong,Naiqi Wu,Zhiwu Li. State-Based Opacity Verification of Networked Discrete Event Systems Using Labeled Petri Nets[J]. IEEE/CAA Journal of Automatica Sinica,2024,11(5):1274-1291.
APA	Yifan Dong,Naiqi Wu,&Zhiwu Li.(2024).State-Based Opacity Verification of Networked Discrete Event Systems Using Labeled Petri Nets.IEEE/CAA Journal of Automatica Sinica,11(5),1274-1291.
MLA	Yifan Dong,et al."State-Based Opacity Verification of Networked Discrete Event Systems Using Labeled Petri Nets".IEEE/CAA Journal of Automatica Sinica 11.5(2024):1274-1291.