IMPROVING N-GRAM LINGUISTIC STEGANOGRAPHY BASED ON TEMPLATES

Alfonso Muñoz, Justo Carracedo Gallardo, Irina Argüelles Álvarez

Abstract

The automatic generation of stegotexts is an area of research within linguistic steganography with a great interest. Different proposals have been published about the development of stegotexts with statistical and linguistic validity in natural language but, unfortunately, the stegotexts generated following some of these procedures suffer from different types of lexical, syntactic, semantic problems or problems of global coherence that would eventually lead the automatically generated texts to be detected by a human reader. This article presents an improved implementation of an algorithm of N-Gram statistic imitation and introduces a new concept of manual edition of the stegotexts generated, based on the idea of templates. This procedure permits the creation of high quality stegotexts to hide a small quantity of information, hundreds of bits, useful to distribute a symmetrical key, a short message, an url, etc. The procedure developed in the article can be applied to different languages, but here, its usefulness is demonstrated for Spanish. The Stelin tool is presented free at http://stelin.sourceforge.net.

References

  1. Bergmair, R., 2007. A comprehensive Bibliography of Linguistic Steganography. SPIE International Conference on Security, Steganography, and Watermarking of Multimedia Contents, volume 6505, January 2007.
  2. Muñoz, A., 2009. The Stelin Tool http:// stelin.sourceforge. net
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Paper Citation


in Harvard Style

Muñoz A., Carracedo Gallardo J. and Argüelles Álvarez I. (2010). IMPROVING N-GRAM LINGUISTIC STEGANOGRAPHY BASED ON TEMPLATES . In Proceedings of the International Conference on Security and Cryptography - Volume 1: SECRYPT, (ICETE 2010) ISBN 978-989-8425-18-8, pages 209-212. DOI: 10.5220/0002918202090212


in Bibtex Style

@conference{secrypt10,
author={Alfonso Muñoz and Justo Carracedo Gallardo and Irina Argüelles Álvarez},
title={IMPROVING N-GRAM LINGUISTIC STEGANOGRAPHY BASED ON TEMPLATES},
booktitle={Proceedings of the International Conference on Security and Cryptography - Volume 1: SECRYPT, (ICETE 2010)},
year={2010},
pages={209-212},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0002918202090212},
isbn={978-989-8425-18-8},
}


in EndNote Style

TY - CONF
JO - Proceedings of the International Conference on Security and Cryptography - Volume 1: SECRYPT, (ICETE 2010)
TI - IMPROVING N-GRAM LINGUISTIC STEGANOGRAPHY BASED ON TEMPLATES
SN - 978-989-8425-18-8
AU - Muñoz A.
AU - Carracedo Gallardo J.
AU - Argüelles Álvarez I.
PY - 2010
SP - 209
EP - 212
DO - 10.5220/0002918202090212