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A lot of research in security of cyber physical systems focus on threat models where an attacker can spoof sensor readings by compromising the communication channel. A little focus is given to attacks on physical components. In this paper a method to detect potential attacks on physical components in a Cyber Physical System (CPS) is proposed. Physical attacks are detected through a comparison of noise...
In this article we have presented experimental results to evaluate the effectiveness of wireless fingerprinting based on Received Signal Strength Indicator(RSSI). Experiments are conducted on a real world water treatment testbed. Results indicate unique vantage point for Cyber Physical System(CPS) settings as the wireless environment is comparatively static hence the significance of signal strength...
An experiment was conducted on a water treatment plant to investigate the effectiveness of using Kalman filter based attack detection schemes in a Cyber Physical System (CPS). Kalman filter was implemented with Chi-Square detector. Random, stealthy bias, and replay attacks were launched and results analysed. Analysis indicates that stealthy false data injection and replay attacks cannot be detected...
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