An on-line design of physical watermarks

• Main Authors: Liu, Hanxiao, Yan, Jiaqi, Mo, Yilin, Johansson, Karl Henrik
• Other Authors: School of Electrical and Electronic Engineering
• Format: Conference or Workshop Item
• Language: English
• Published: 2020
• Subjects: Engineering::Electrical and electronic engineering; Watermarking; Optimization
• Online Access: https://hdl.handle.net/10356/142973
• Institution: Nanyang Technological University

This paper considers the problem of designing physical watermark signals to protect a control system against replay attacks. We first introduce the replay attack model, where an adversary replays the previous sensory data in order to fool the controller to believe the system is still operating norma...