Your browser is unsupported

We recommend using the latest version of IE11, Edge, Chrome, Firefox or Safari.

Sep 18 2020

Demand-private and Content-secure Caching Networks

ECE 595 Department Seminar Series

September 18, 2020

11:00 AM - 12:00 PM




Chicago, IL 60607

Demand-Private and Content-Secure Caching Networks

Presenter: Daniela Tuninetti, University of Illinois Chicago

Abstract: Caching is known to significantly reduce the communication load over bottleneck links by jointly designing the cache content of the users and the signal transmitted by the server so as to guarantee multicasting opportunities regardless of the requested content. In this talk we focus on two practically motivated constraints: (i) the content of the library must be kept secure from a wiretapper who obtains the signal sent by the server, and (ii) any subset of users together cannot obtain any information about the demands of the remaining users. We first revisit coded caching without privacy or security constraints [arxiv:1209.5807]. We then discuss how the linear function retrieval framework [arXiv:2001.03577] can be used as a building block in demand-private schemes as a means to protect the delivered content with locally cached privacy keys [arXiv:2008.03642]. Finally, we introduce the notion of key superposition, of privacy and security keys, to also guarantee content security [arXiv:2009.06000]. Remarkably, we show that the tradeoff between memory and communication load does not increase compared to the best-known schemes that only guarantee content security [arXiv: 1312.3961] or demand privacy [arXiv: 1908.10821].

Speaker bio: Daniela Tuninetti is a professor and the interim department head of the department of electrical and computer engineering at the University of Illinois Chicago (UIC), which she joined in 2005. She received her PhD degree in Electrical Engineering from Télécom ParisTech Paris, France, in 2002. She was a post-doc with the School of Computer and Communication Sciences at the Swiss Federal Institute of Technology in Lausanne (EPFL) from 2002 to 2004. She received the NSF CAREER award in 2007. She was named University of Illinois Scholar in 2015. She is a Distinguished Lecturer and a member of the Board of Governors of the IEEE Information Theory Society. Her research interests include the ultimate performance limits of wireless interference and relay networks; coexistence between radars and communication systems; content-type coding; cache-aided systems; and distributed private coded computing. She was the Editor-in-Chief of the IEEE Information Theory Society Newsletter from 2006 to 2008, and an Editor of IEEE Communication Letters from 2006 to 2009, of IEEE Transactions on Wireless Communications from 2011 to 2014, and of IEEE Transactions on Information Theory from 2014 to 2017.

Faculty Host: Professor Mesrob Ohannessian,


Department of Electrical and Computer Engineering

Date posted

Sep 18, 2020

Date updated

Jun 14, 2021