Steganographic scheme using a block cipher

Authors:
Jeong Jae Yu;Chang-ho Jung;Seok-Koo Yoon;Sangjin Lee
Affiliations:
Center for Information Security Technologies, Korea University, Seoul, Korea;Center for Information Security Technologies, Korea University, Seoul, Korea;Center for Information Security Technologies, Korea University, Seoul, Korea;Center for Information Security Technologies, Korea University, Seoul, Korea
Venue:
IWDW'04 Proceedings of the Third international conference on Digital Watermarking
Year:
2004

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Abstract

Westfeld[1] detected the stegoed–image by measuring the frequencies of PoVs(pairs of values) in the suspicious images. Fridrich[4] proposed another detection method, so-called RS steganalysis. In this paper we propose a steganographic scheme using a block cipher, which minimizes the embedding changes of a cover object utilizing not only the LSBs of the cover object's strings but also the whole bits of the cover object. The proposed scheme is a kind of the coding scheme which minimizes changed bits for message embedding without sharing the secret code–book. The experimental result shows that the proposed scheme efficiently evades the χ2–statistical test and RS steganalysis.