| Title | A Graph-Theoretic Security Index Based on Undetectability for Cyber-Physical Systems |
| Publication Type | Conference Paper |
| Year of Publication | 2022 |
| Authors | Zhai, Lijing, Vamvoudakis, Kyriakos G., Hugues, Jérôme |
| Conference Name | 2022 American Control Conference (ACC) |
| Date Published | jun |
| Keywords | actuator security, actuators, composability, control systems, cps security, Cyber-physical systems, graph theory, Indexes, Linear systems, Metrics, pubcrawl, resilience, Resiliency, security, undetectability |
| Abstract | In this paper, we investigate the conditions for the existence of dynamically undetectable attacks and perfectly undetectable attacks. Then we provide a quantitative measure on the security for discrete-time linear time-invariant (LTI) systems under both actuator and sensor attacks based on undetectability. Finally, the computation of proposed security index is reduced to a min-cut problem for the structured systems by graph theory. Numerical examples are provided to illustrate the theoretical results. |
| DOI | 10.23919/ACC53348.2022.9867294 |
| Citation Key | zhai_graph-theoretic_2022 |
A Graph-Theoretic Security Index Based on Undetectability for Cyber-Physical Systems