Analysis of Cyber Physical Systems Security Issue via Uncertainty Approaches

From security perspective, cyber physical system (CPS) security issue is investigated in this note. Based on a double-loop security control structure, the typical cyber attack called information disclosure, denial-of-service (DoS), deception attack and stealth attack are analyzed from uncertainty perspective. The performance of these attacks are formulated, meaningful models are proposed meanwhile. According to aforementioned attacks, security control scenarios are obtained via the character of each kind cyber attack. And some novel results are obtained via a well designed double closed loop structure. At last, from traditional standpoint, uncertainties of a separately excited DC motor is taken as an example to demonstrate the problem.