From control system security indices to attack identifiability

Conference Paper (2016)
Author(s)

André Herdeiro Teixeira (TU Delft - Information and Communication Technology)

H Sandberg (KTH Royal Institute of Technology)

Research Group
Information and Communication Technology
Copyright
© 2016 A.M. Herdeiro Teixeira, H Sandberg
DOI related publication
https://doi.org/10.1109/SOSCYPS.2016.7580001
More Info
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Publication Year
2016
Language
English
Copyright
© 2016 A.M. Herdeiro Teixeira, H Sandberg
Research Group
Information and Communication Technology
ISBN (electronic)
9781509043040
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Abstract

In this paper, we investigate detectability and identifiability of attacks on linear dynamical systems that are subjected to external disturbances. We generalize a concept for a security index, which was previously introduced for static systems. The index exactly quantifies the resources necessary for targeted attacks to be undetectable and unidentifiable in the presence of disturbances. This information is useful for both risk assessment and for the design of anomaly detectors. Finally, we show how techniques from the fault detection literature can be used to decouple disturbances and to identify attacks, under certain sparsity constraints.

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