Category attack for LSB steganalysis of JPEG images

Authors:
Kwangsoo Lee;Andreas Westfeld;Sangjin Lee
Affiliations:
Center for Information Security Technologies (CIST), Korea University, Seoul, Korea;Institute for System Architecture, Technische Universität Dresden, Dresden, Germany;Center for Information Security Technologies (CIST), Korea University, Seoul, Korea
Venue:
IWDW'06 Proceedings of the 5th international conference on Digital Watermarking
Year:
2006

Citing 6
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Abstract

In this paper, we propose a new method for the detection of LSB embedding in JPEG images. We are motivated by a need to further research the idea of the chi-square attack. The new method simply use the first-order statistics of DCT coefficients, but is more powerful to detect the random embedding in JPEG images. For evaluation, we used versions of Jsteg and Jphide with randomized embedding path to generate stego images in our experiments. In results, the proposed method outperforms the method of Zhang and Ping and is applicable to Jphide. The detection power of both proposed methods is compared to the blind classifier by Fridrich that uses 23 DCT features.