Steganography and Steganalysis
- When?
- Wednesday 8 August 2007, 14:00 to 15:00
- Where?
- 39BB02
- Open to:
- Staff, Students
Professor Yun Q Shi, New Jersey Institute of Technology
Abstract:
In recent years, digital data hiding has emerged as an increasingly active research area. Information can be hidden into images, videos, and audios imperceptibly to human beings, thus providing vast opportunities for covert communications. Consequently, methods to detect covert communications are called for. This task is especially urgent for law enforcement to deter the illegal distribution of children pornographic images/videos hidden inside normal images/videos, and for intelligence agencies to intercept criminal communications among terrorists. In addition to detect whether a given medium has hidden message in it, steganalysis can also serve as an effective way to judge the security performance of steganographic techniques.
In this talk, the basic concepts of steganography and steganalysis are introduced first. After some typical steganographic schemes are described briefly, some major steganalysis methods are listed, introduced and commented. The emphasis is given to some typical technologies in blind stegnalayis, which can detect if some message has been hidden inside a given image without any prior knowledge of the data embedding technique that has possibly been used and without having the original image in the detection. Finally, several difficult and challenging future research issues are discussed.
Notes:
Professor Yun Q Shi joined the Department of Electrical and Computer Engineering at the New Jersey Institute of Technology since 1987. He obtained his B.S. degree and M.S. degree from the Shanghai Jiao Tong University, Shanghai, China; his M.S. and Ph.D. degrees from the University of Pittsburgh, P.A.. He is a leading researcher in the field of multimedia security, contributing in the region of 200 authored and co-authored papers in top ranking conferences and journals, 18 patents and 1 book. He is also a Fellow of the IEEE. Professor Shi is currently visiting the Department of Computing, University of Surrey sponsored by the Royal Society's North America Short Visits Grant. From more biographical information please refer to http://web.njit.edu/~shi/.