Linear system security—Detection and correction of adversarial sensor attacks in the noise-free case

We address the problem of attack detection and attack correction for multi-output discrete-time linear time-invariant dynamical systems under sensor attack. More specifically, we focus on the situation where adversarial attack signals are added to some of the system’s output signals. Algorithms for...

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Bibliographic Details
Published in:Automatica (Oxford) Vol. 101; pp. 53 - 59
Main Authors: Tang, Zhanghan, Kuijper, Margreta, Chong, Michelle S., Mareels, Iven, Leckie, Christopher
Format: Journal Article
Language:English
Published: Elsevier Ltd 01.03.2019
Subjects:
Attack correction
Attack detection
Error control coding
Linear time-invariant systems
Security
Sensor attacks
Linear time-invariant systems
Sensor attacks
Attack detection
Security
Attack correction
Error control coding
ISSN:0005-1098, 1873-2836, 1873-2836
Online Access:Get full text
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Summary:We address the problem of attack detection and attack correction for multi-output discrete-time linear time-invariant dynamical systems under sensor attack. More specifically, we focus on the situation where adversarial attack signals are added to some of the system’s output signals. Algorithms for sensor attack detection and correction are presented using the notion of ‘security index’ which characterizes the system’s vulnerability against such attacks. The results are illustrated by examples involving multiple sensors.
ISSN:0005-1098
1873-2836
1873-2836
DOI:10.1016/j.automatica.2018.11.048