Title
Switching and Data Injection Attacks on Stochastic Cyber-Physical Systems: Modeling, Resilient Estimation and Attack Mitigation.
Abstract
In this article, we consider the problem of attack-resilient state estimation, that is, to reliably estimate the true system states despite two classes of attacks: (i) attacks on the switching mechanisms and (ii) false data injection attacks on actuator and sensor signals, in the presence of stochastic process and measurement noise signals. We model the systems under attack as hidden mode stochastic switched linear systems with unknown inputs and propose the use of a multiple-model inference algorithm to tackle these security issues. Moreover, we characterize fundamental limitations to resilient estimation (e.g., upper bound on the number of tolerable signal attacks) and discuss the topics of attack detection, identification, and mitigation under this framework. Simulation examples of switching and false data injection attacks on a benchmark system and an IEEE 68-bus test system show the efficacy of our approach to recover resilient (i.e., asymptotically unbiased) state estimates as well as to identify and mitigate the attacks.
Year
DOI
Venue
2018
10.1145/3204439
the internet of things
Keywords
DocType
Volume
Resilient systems, false data injection attacks, switching attacks
Journal
abs/1707.07112
Issue
ISSN
Citations 
2
2378-962X
2
PageRank 
References 
Authors
0.38
19
3
Name
Order
Citations
PageRank
Sze Zheng Yong116818.64
Minghui Zhu24412.11
Emilio Frazzoli33286229.95