University of Tartu - ©2011 Rafik Chaabouni - Last update: 28.10.2013 23:01
Date: 29/10/2013, Time: 17:15, Location: J. Liivi 2, room 317 (next to the coffee room)
Speaker: Prof. Sergey Bezzateev (Invited speaker from Saint Petersburg State University of Aerospace Instrumentation)
Title: Special class of error-correcting codes for steganography
Abstract:
An approach to construction of steganographic method for the weighted container is discussed. To find the efficient solution, concept of Penalty Function is introduced. The analysis of the efficiency of the weighted embedding for the simple model of weighted container is shown.
A steganographic method based on special class of Goppa codes in the weighted Hamming metric is proposed. The comparison of the proposed method and algorithm F5 and its modifications is given.
Brief Bio:
Sergey V. Bezzateev was born in Leningrad, U.S.S.R. , on June 10, 1957. He received the Diploma in computer science in 1980 and the Ph.D. degree in information theory in 1987, both from the Aerospace Instrumentation Institute of Leningrad. From 1980 to 1993 he was with Aerospace Instrumentation Institute. He spent 1993-1995 as a researcher with Nagoya University, Japan, where he worked in Prof. Yoshihiro Iwadare's Laboratory. From 1995 he was Associate Professor with the Department of Information Technologies and Information Security, State University of Aerospace Instrumentation (SUAI), Saint Petersburg, Russia. From 2004 to 2007, he was Project Leader in Joint Laboratory Samsung-SUAI on Information Security in Wireless Networks. In 2010, he became Professor and the head of Department of Technologies of Information Security in SUAI. His main research interests include coding theory and cryptography.