Writing on wet paper

Jessica Fridrich; Miroslav Goljan; Petr Lisonek; David Soukal

doi:10.1117/12.583160

21 March 2005 Writing on wet paper

Jessica Fridrich, Miroslav Goljan, Petr Lisonek, David Soukal

Proceedings Volume 5681, Security, Steganography, and Watermarking of Multimedia Contents VII; (2005) https://doi.org/10.1117/12.583160
Event: Electronic Imaging 2005, 2005, San Jose, California, United States

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.

Citation Download Citation

Jessica Fridrich, Miroslav Goljan, Petr Lisonek, and David Soukal "Writing on wet paper", Proc. SPIE 5681, Security, Steganography, and Watermarking of Multimedia Contents VII, (21 March 2005); https://doi.org/10.1117/12.583160

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