A secure strategy for a cyber physical system with multi-sensor under linear deception attack

Linear deception attacks can bypass the χ2 detector by tampering with data. In this paper, we provide a secure strategy for a cyber physical system (CPS) against such attacks. In response to these attacks in multi-sensor system, we encrypt the innovation sequence by a watermark, so that they can hel...

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Bibliographic Details
Published inJournal of the Franklin Institute Vol. 358; no. 13; pp. 6666 - 6683
Main Authors Wang, Caiyun, Huang, Jiahao, Wang, Di, Li, Fangfei
Format Journal Article
LanguageEnglish
Published Elmsford Elsevier Ltd 01.09.2021
Elsevier Science Ltd
Subjects
Cyber-physical systems
Cybersecurity
Deception
Sensors
Studies
Watermarking
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Summary:Linear deception attacks can bypass the χ2 detector by tampering with data. In this paper, we provide a secure strategy for a cyber physical system (CPS) against such attacks. In response to these attacks in multi-sensor system, we encrypt the innovation sequence by a watermark, so that they can help the χ2 detector better detect the original undetected linear deception attacks when the attacker does not know the existence of the watermark. Simultaneously, when the attacker has information about the watermark, the estimated performance and control performance will not be reduced by adjusting the parameters of the watermark. Finally, the effectiveness of this defense strategy against deception attacks is verified by a numerical example.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
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content type line 14
ISSN:0016-0032
1879-2693
0016-0032
DOI:10.1016/j.jfranklin.2021.06.029