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“The Good, The Bad and The Ugly”: Evaluation of Wi-Fi Steganography

Krzysztof Szczypiorski 1, Artur Janicki 1, and Steffen Wendzel 2
1. Institute of Telecommunications, Warsaw University of Technology, 15/19 Nowowiejska Street, 00-665 Warsaw, Poland
2. Fraunhofer-Institutfür Kommunikation, Informationsverarbeitung und Ergonomie FKIE, Fraunhoferstr. 20, 53343 Wachtberg, Germany

Abstract—In this paper we propose a new method for the evaluation of network steganography algorithms based on the new concept of “the moving observer”. We considered three levels of undetectability named: “good”, “bad”, and “ugly”. To illustrate this method we chose Wi-Fi steganography as a solidfamily of information hiding protocols. We present the state of the art in this area covering well-known hiding techniques for 802.11 networks. “The moving observer” approach could help not only in the evaluation of steganographic algorithms, but also might be a starting point fora new detection system of network steganography. The concept of a new detection system, called MoveSteg, is explained in detail.

Index Terms—Network steganography, information hiding, network security, Wi-Fi, 802.11, moving observer

Cite: Krzysztof Szczypiorski, Artur Janicki, and Steffen Wendzel, “The Good, The Bad and The Ugly”: Evaluation of Wi-Fi Steganography," Journal of Communications, vol. 10, no. 10, pp. 747-752, 2015. Doi: 10.12720/jcm.10.10.747-752