Delay-Induced Watermarking for Detection of Replay Attacks in Linear Systems
<|reference_start|>Delay-Induced Watermarking for Detection of Replay Attacks in Linear Systems: A state-feedback watermarking signal design for the detection of replay attacks in linear systems is proposed. The control input is augmented with a random time-delayed term of the system state estimate, in order to secure the system against attacks of replay type. We outline the basic analysis of the closed-loop response of the state-feedback watermarking in a LQG controlled system. Our theoretical results are applied on a temperature process control example. While the proposed secure control scheme requires very involved analysis, it, nevertheless, holds promise of being superior to conventional, feed-forward, watermarking schemes, in both its ability to detect attacks as well as the secured system performance.<|reference_end|>
@article{somarakis2024delay-induced,
    title={Delay-Induced Watermarking for Detection of Replay Attacks in Linear
  Systems},
    author={Christoforos Somarakis, Raman Goyal, Erfaun Noorani, Shantanu Rane},
    journal={arXiv preprint arXiv:2404.00850},
    year={2024},
    archivePrefix={arXiv},
    eprint={2404.00850},
    primaryClass={eess.SY cs.CR cs.SY}
}