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1 CRAN - Centre de Recherche en Automatique de Nancy

Abstract : It is widely admitted that most of chaotic cryptosystems belong to the class of symmetric key ciphers but few of them have really been compared with standard existing ones. As a consequence, their design often resorts to empirical approaches with trial-and-error settings. This paper must be considered as an attempt to handle such a situation. An in-depth comparison between a fully-fledged self-synchronous stream cipher called Mosquito and one of the most promising chaotic cryptosystem, namely hybrid message-embedding, is carried out. It is given a correspondence between the design parameters involved in the two respective schemes, in particular the size of the secret key, the required memory, the dimension of the system. Furthermore, we put a special emphasis on the link between the notion of relative degree of a dynamical system and the concept of pipelining.

Keywords : chaotic cryptosystems self-synchronous stream ciphers





Autor: Phuoc Vo Tan - Gilles Millérioux - Jamal Daafouz -

Fuente: https://hal.archives-ouvertes.fr/



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