Book Chapter

Secure Networked Control Systems Design Using Semi-homomorphic Encryption

Y Lin, F Farokhi, I Shames, D Nešić

Safety, Security and Privacy for Cyber-Physical Systems | Lecture Notes in Control and Information Sciences | Springer | Published : 2021

Abstract

A secure and private nonlinear networked control systems (NCSs) design using semi-homomorphic encryption is studied. Static feedback controllers are used and network architectures are provided to enable control signal computation using encrypted signals directly. As a result, the security of the NCSs is further enhanced by preserving the privacy of information flowing through the whole network. Whereas in traditional encryption techniques, encrypted signals are decrypted before control computation and are encrypted again after computation for transmission. While this is highly desirable from privacy point of view, additional technical difficulties in the design and analysis of NCSs are induc..

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