Some Topics on Information Theoretic Security
Presenter(s)

IEEE ITW 2021, Virtually from Kanazawa, Japan
Plenary Lecture

Date

Abstract

In this plenary talk we present our previous works on information theoretic security consisting of three miscellaneous topics. Those topics provide some specific but interesting problems arising inherently in communication systems with security requirement. The first topics is the relay channel with confidential messages (the RCC), which provides an interesting subject discussing an interplay between the two roles of the relay as a “helper” and as an “eavesdropper”. The second topics is the broadcast channel with confidential messages (the BCC) with randomness constraints stochastic encoders. In the BCC, we study a practical problem that we have some resource constraint on “dummy random variables” used for the stochastic encoders. The third topic is our recent work on an information theoretic analysis of the Shannon cipher system under side-channel attacks. In this topics we discuss some interesting relationship between the privacy amplification and the strong converse theorem for a certain multiterminal source coding system.

Biography
Yasutada Oohama (M’03) was born in Tokyo, Japan, in 1963. He received the B.Eng., M.Eng., and D.Eng. degrees in mathematical engineering in 1987, 1989, and 1992, respectively, from University of Tokyo, Tokyo, Japan. From 1992 to Sept. 2006, he was with Kyushu University, Fukuoka, Japan. From Oct. 2006-2010, he was with The University of Tokushima, Tokushima, Japan. Since 2011, he has been with The University of Electro-Communications, Tokyo, Japan. He is currently a professor with the Department of Communication Engineering and Informatics. From September 1996 to March 1997, he was a visiting scholar with the Information Systems Laboratory, Stanford University, Stanford CA. His current research interest includes basic problems in information theory and related areas.