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Proceedings Paper

Writing on wet paper
Author(s): Jessica Fridrich; Miroslav Goljan; Petr Lisonek; David Soukal
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Paper Abstract

In this paper, we show that the communication channel known as writing in memory with defective cells is a relevant information-theoretical model for a specific case of passive warden steganography when the sender embeds a secret message into a subset C of the cover object X without sharing the selection channel C with the recipient. The set C could be arbitrary, determined by the sender from the cover object using a deterministic, pseudo-random, or a truly random process. We call this steganography “writing on wet paper” and realize it using low-density random linear codes with the encoding step based on the LT process. The importance of writing on wet paper for covert communication is discussed within the context of adaptive steganography and perturbed quantization steganography. Heuristic arguments supported by tests using blind steganalysis indicate that the wet paper steganography provides improved steganographic security for embedding in JPEG images and is less vulnerable to attacks when compared to existing methods with shared selection channels.

Paper Details

Date Published: 21 March 2005
PDF: 13 pages
Proc. SPIE 5681, Security, Steganography, and Watermarking of Multimedia Contents VII, (21 March 2005); doi: 10.1117/12.583160
Show Author Affiliations
Jessica Fridrich, State Univ. of New York/Binghamton (United States)
Miroslav Goljan, State Univ. of New York/Binghamton (United States)
Petr Lisonek, Simon Fraser Univ. (Canada)
David Soukal, State Univ. of New York/Binghamton (United States)

Published in SPIE Proceedings Vol. 5681:
Security, Steganography, and Watermarking of Multimedia Contents VII
Edward J. Delp; Ping W. Wong, Editor(s)

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