Concordia University


April 16, 2019: Invited Speaker Seminar: Closing the Loop Over Encrypted Signals

Dr. Iman Shames
University of Melbourne

Tuesday, April 16, 2019 at 10:30 am
Room EV003.309


In this talk, networked control systems with encrypted sensors measurements are considered. Semi-homomorphic encryption is used so that the controller can perform the required computation on the encrypted data. Specifically, in this work, the Paillier encryption technique is utilized that allows summation of decrypted data to be performed by multiplication of the encrypted data. Conditions on the parameters of the encryption technique are provided that guarantee the stability of the closed-loop system and ensure certain bounds on the closed-loop performance. Furthermore, the extension of the methodology to distributed systems will be introduced. Some experiment result will conclude this talk.


Iman Shames is currently a Senior Lecturer at the Department of Electrical and Electronic Engineering, University of Melbourne. He had been a McKenzie fellow at the same department from 2012 to 2014. Previously, he was an ACCESS Postdoctoral Researcher at the ACCESS Linnaeus Centre, the KTH Royal Institute of Technology, Stockholm, Sweden. He received his Ph.D. degree in engineering from the Australian National University, Canberra, Australia in 2011. His current research interests include, but are not limited to, optimisation theory and numerical optimisation, mathematical systems theory, and security and privacy in cyber-physical systems.

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