Statistical behaviour of discrete-time rossler system with time varying delay

Authors:
Madalin Frunzete;Adrian Luca;Adriana Vlad;Jean-Pierre Barbot
Affiliations:
Faculty of Electronics, Telecommunications and Information Technology, Politehnica University of Bucharest, Bucharest 6, Romania and Electronique et Commande des Systmes Laboratoire, ENSEA, Cergy- ...;Faculty of Electronics, Telecommunications and Information Technology, Politehnica University of Bucharest, Bucharest 6, Romania;Faculty of Electronics, Telecommunications and Information Technology, Politehnica University of Bucharest, Bucharest 6, Romania and The Research Institute for Artificial Intelligence, Romanian Ac ...;Electronique et Commande des Systmes Laboratoire, ENSEA, Cergy-Pontoise, France and EPI Non-A INRIA, France
Venue:
ICCSA'11 Proceedings of the 2011 international conference on Computational science and its applications - Volume Part I
Year:
2011

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Abstract

In this paper a modified discrete-time chaotic system is presented from the statistical point of view. This chaotic system is used in a cryptosystem and, for improving the presented method used in security data transmission, its structure is changed. The technique is implemented for a Rössler hyperchaotic system. The improvement consists in modifying the existing system in order to obtain a higher robustness for the cryptosystem; for this, a time varying delay is added in its structure.