期刊
IEEE TRANSACTIONS ON AUTOMATIC CONTROL
卷 67, 期 12, 页码 6745-6753出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TAC.2021.3131145
关键词
False data injection attack; joint attacks; resource constraints; security; state estimation
资金
- Natural Science Foundation of Jiangsu Province of China [BK20180367]
- National Natural Science Foundation of China [62173087, 61933007, 61873148, 61803082]
- Fundamental Research Funds for the Central Universities of China
- Southeast University of China
- Alexander von Humboldt Foundation of Germany
- Russian Ministry of Science and Education [075-15-2020-808.]
This article addresses the security issues in the state estimation problem for a networked control system (NCS) by proposing a new model of joint false data injection (FDI) attack and providing easy-to-implement algorithms. By investigating the sparsity of the attack vectors, necessary conditions for insecurity under different attack scenarios are derived. The effectiveness of the proposed FDI attacks is verified through numerical examples.
This article is concerned with the security issue in the state estimation problem for a networked control system (NCS). A new model of joint false data injection (FDI) attack is established wherein attacks are injected to both the remote estimator and the communication channels. Such a model is general that includes most existing FDI attack models as special cases. The joint FDI attacks are subjected to limited access and/or resource constraints, and this gives rise to a few attack scenarios to be examined one by one. Our objective is to establish the so-called insecurity conditions under which there exists an attack sequence capable of driving the estimation bias to infinity while bypassing the anomaly detector. By resorting to the generalized inverse theory, necessary and sufficient conditions are derived for the insecurity under different attack scenarios. Subsequently, easy-to-implement algorithms are proposed to generate attack sequences on insecure NCSs with respect to different attack scenarios. In particular, by using a matrix splitting technique, the constraint-induced sparsity of the attack vectors is dedicatedly investigated. Finally, several numerical examples are presented to verify the effectiveness of the proposed FDI attacks.
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