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Authors: Elsa Serret 1 ; Antoine Lesueur 1 and Alban Gabillon 2

Affiliations: 1 Département d’informatique, École Navale, Brest, France ; 2 Université de la Polynésie Française, French Polynesia

Keyword(s): Linguistic Steganography, Cover Text, Context Free Grammar, Data Confidentiality.

Abstract: Steganography is a set of techniques to hide secret information in another medium called the cover. In the case of linguistic steganography, the cover is text itself. Different methods of linguistic steganography have been developed. They are grouped into two main categories: text generation systems and cover text modification methods. Text generation systems do not produce messages that fit naturally into a conversation within a messaging application. Text modification methods revolve around lexical substitution or syntactic modification. In this paper, we present a new method of linguistic steganography for messaging applications. Our method is based on cover text extension and synonym substitution. We analyse the performance of our system as well as its security and show that it outperforms other substitution methods in terms of bandwidth, i.e., average number of encoded secret bits per sentence.

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Paper citation in several formats:
Serret, E.; Lesueur, A. and Gabillon, A. (2022). Linguistic Steganography for Messaging Applications. In Proceedings of the 8th International Conference on Information Systems Security and Privacy - ICISSP; ISBN 978-989-758-553-1; ISSN 2184-4356, SciTePress, pages 519-527. DOI: 10.5220/0010899300003120

@conference{icissp22,
author={Elsa Serret. and Antoine Lesueur. and Alban Gabillon.},
title={Linguistic Steganography for Messaging Applications},
booktitle={Proceedings of the 8th International Conference on Information Systems Security and Privacy - ICISSP},
year={2022},
pages={519-527},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0010899300003120},
isbn={978-989-758-553-1},
issn={2184-4356},
}

TY - CONF

JO - Proceedings of the 8th International Conference on Information Systems Security and Privacy - ICISSP
TI - Linguistic Steganography for Messaging Applications
SN - 978-989-758-553-1
IS - 2184-4356
AU - Serret, E.
AU - Lesueur, A.
AU - Gabillon, A.
PY - 2022
SP - 519
EP - 527
DO - 10.5220/0010899300003120
PB - SciTePress

- Science and Technology Publications, Lda.
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