Research on Mixed Cyber-Attacks Methods in Cyber Physical System

In recent years, cyber physical systems have been widely applied in various industries, and their security issues have attracted the interest of researchers. This paper investigates the problem of mixed cyber-attacks on cyber physical systems under communication protocols. Communication protocols address the issue of limited resources in wireless communication networks. First, we establish the state equation and measurement equation of the cyber physical system. Then, we utilize the subspace model identification method to obtain the system parameter matrix and establish a mixed cyber-attack model. Additionally, we design a mixed cyber-attack strategy that satisfies both the destructive and covert nature of the attacks. Finally, we conduct simulation experiments on the GE-404 engine. The results demonstrate that the mixed cyber-attack strategy designed in this paper can not only evade anomaly detectors but also result in infinite estimation error for the system. Numerical simulations validate the effectiveness of the proposed method in this paper.