Opacity of Nondeterministic Transition Systems: A (Bi)Simulation Relation Approach

被引:38
|
作者
Zhang, Kuize [1 ,2 ]
Yin, Xiang [3 ,4 ]
Zamani, Majid [5 ,6 ]
机构
[1] KTH Royal Inst Technol, Sch Elect Engn, ACCESS Linnaeus Ctr, S-10044 Stockholm, Sweden
[2] Harbin Engn Univ, Coll Automat, Harbin 150001, Heilongjiang, Peoples R China
[3] Shanghai Jiao Tong Univ, Dept Automat, Shanghai 200240, Peoples R China
[4] Shanghai Jiao Tong Univ, Key Lab Syst Control & Informat Proc, Shanghai 200240, Peoples R China
[5] Univ Colorado, Comp Sci Dept, Boulder, CO 80309 USA
[6] Ludwig Maximilian Univ Munich, Dept Comp Sci, D-80539 Munich, Germany
基金
黑龙江省自然科学基金; 中国国家自然科学基金;
关键词
(Bi)simulation relation; nondeterministic transition system; opacity; INFINITE-STEP; DISCRETE; VERIFICATION;
D O I
10.1109/TAC.2019.2908726
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
In this paper, we propose several opacity-preserving (bi)simulation relations for nondeterministic transition systems (NTSs) in terms of initial-state opacity, current-state opacity, $K$-step opacity, and infinite-step opacity. We also show how one can leverage quotient constructions to compute such relations. As a result, although the opacity verification problem for infinite NTSs is generally undecidable, if one can find such an opacity-preserving relation from an infinite NTS to a finite one, the (lack of) opacity of the infinite NTS can be easily verified over the finite one, which is decidable.
引用
收藏
页码:5116 / 5123
页数:8
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