Revealing stealthy attacks in control systems
Author(s) -
André Teixeira,
Iman Shames,
Henrik Sandberg,
Karl Henrik Johansson
Publication year - 2012
Publication title -
kth publication database diva (kth royal institute of technology)
Language(s) - English
Resource type - Conference proceedings
DOI - 10.1109/allerton.2012.6483441
Subject(s) - computer science , invariant (physics) , system dynamics , linear system , lti system theory , control system , computer security , mathematics , engineering , artificial intelligence , mathematical analysis , electrical engineering , mathematical physics
In this paper the problem of revealing stealthy data-injection attacks on control systems is addressed. In particular we consider the scenario where the attacker performs zero-dynamics attacks on the system. First, we characterize and analyze the stealthiness properties of these attacks for linear time-invariant systems. Then we tackle the problem of detecting such attacks by modifying the system's structure. Our results provide necessary and sufficient conditions that the modifications should satisfy in order to detect the zero-dynamics attacks. The results and proposed detection methods are illustrated through numerical examples.
QC 20121114
HYCONAccelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom