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Open AccessCommunication
Future Internet 2010, 2(1), 30-40; doi:10.3390/fi2010030

Selective Redundancy Removal: A Framework for Data Hiding

Università di Napoli Federico II, via Cintia 45, 80126 Napoli, Italy
Received: 30 November 2009 / Revised: 4 February 2010 / Accepted: 10 February 2010 / Published: 15 February 2010
(This article belongs to the Special Issue Security for Next Generation Wireless and Decentralized Systems)
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Data hiding techniques have so far concentrated on adding or modifying irrelevant information in order to hide a message. However, files in widespread use, such as HTML documents, usually exhibit high redundancy levels, caused by code-generation programs. Such redundancy may be removed by means of optimization software. Redundancy removal, if applied selectively, enables information hiding. This work introduces Selective Redundancy Removal (SRR) as a framework for hiding data. An example application of the framework is given in terms of hiding information in HTML documents. Non-uniformity across documents may raise alarms. Nevertheless, selective application of optimization techniques might be due to the legitimate use of optimization software not supporting all the optimization methods, or configured to not use all of them.
Keywords: steganography; optimization; data hiding; covert channel steganography; optimization; data hiding; covert channel

This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Fiore, U. Selective Redundancy Removal: A Framework for Data Hiding. Future Internet 2010, 2, 30-40.

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