Bootstrapping Guarantees: Stability and Performance Analysis for Dynamic Encrypted Control

Rising Star Symposium on Cyber-Physical Systems Security, Resilience, and Privacy https://sites.google.com/nyu.edu/ieee-css-tcsp-symp/home By Sebastian Schlor, University of Stuttgart https://ieeexplore.ieee.org/document/10525200 In this talk, we analyze dynamic encrypted control with explicit consideration of bootstrapping. By recognizing the bootstrapping errors occurring in the controller’s state as an uncertainty in the robust control framework, we can provide stability and performance guarantees for the whole encrypted control system. Further, the conservatism of the stability and performance test is reduced by using a lifted version of the control system.