Time Constant: Actuator Fingerprinting using Transient Response of Device and Process in ICS
<|reference_start|>Time Constant: Actuator Fingerprinting using Transient Response of Device and Process in ICS: Command injection and replay attacks are key threats in Cyber Physical Systems (CPS). We develop a novel actuator fingerprinting technique named Time Constant. Time Constant captures the transient dynamics of an actuator and physical process. The transient behavior is device-specific. We combine process and device transient characteristics to develop a copy-resistant actuator fingerprint that resists command injection and replay attacks in the face of insider adversaries. We validated the proposed scheme on data from a real water treatment testbed, as well as through real-time attack detection in the live plant. Our results show that we can uniquely distinguish between process states and actuators based on their Time Constant.<|reference_end|>
@article{ahmed2024time,
    title={Time Constant: Actuator Fingerprinting using Transient Response of
  Device and Process in ICS},
    author={Chuadhry Mujeeb Ahmed, Matthew Calder, Sean Gunawan, Jay Prakash,
  Shishir Nagaraja and Jianying Zhou},
    journal={arXiv preprint arXiv:2409.16536},
    year={2024},
    archivePrefix={arXiv},
    eprint={2409.16536},
    primaryClass={cs.CR}
}