Security Analysis of a Distributed Networked System Under Eavesdropping Attacks

被引：44

作者：

Yang, Wen ^{[1
]}

Zheng, Ziqian ^{[1
]}

Chen, Guanrong ^{[2
]}

Tang, Yang ^{[1
]}

Wang, Xiaofan ^{[3
]}

机构：

[1] East China Univ Sci & Technol, Key Lab Adv Control & Optimizat Chem Proc, Shanghai 200237, Peoples R China

[2] City Univ Hong Kong, Dept Elect Engn, Hong Kong, Peoples R China

[3] Shanghai Univ, Sch Mech Engn & Automat, Shanghai 200072, Peoples R China

来源：

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS | 2020年 / 67卷 / 07期

基金：

中国国家自然科学基金;

关键词：

Networked system; eavesdropping attack; observability; complex network; cyber-physical system; CONTROLLABILITY; OBSERVABILITY;

D O I：

10.1109/TCSII.2019.2928558

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this brief, we consider the security problem for a network of linear time-invariant dynamical systems under eavesdropping attacks, where an eavesdropper can measure the states of some nodes in the network. We provide a necessary and sufficient condition for the eavesdropper to reveal the states of the networked system. We also present some necessary conditions for the case when the network has tail nodes or at least one node not monitored by the eavesdropper. In addition, we investigate several typical network structures and show that the networked system can be completely observed provided that the eavesdropper can monitor one node in each cycle. Further, we characterize the minimal set of necessarily monitored nodes with the upper bound set of such nodes. Finally, we verify the theoretical results by numerical simulations.

引用

页码：1254 / 1258

页数：5

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