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Determination of the parameters for a Lorenz system and application to break the security of two-channel chaotic cryptosystems

Orue, AB, Fernandez, V, Alvarez, G, Pastor, G, Romera, M, Li, SJ and Montoya, F (2008) Determination of the parameters for a Lorenz system and application to break the security of two-channel chaotic cryptosystems Physics Letters. Section A: General, Atomic and Solid State Physics, 372 (34). 5588 - 5592. ISSN 0375-9601

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Abstract

This Letter describes how to determine the parameter of the chaotic Lorenz system used in a two-channel cryptosystem. First the geometrical properties of the Lorenz system are used to reduce the parameter search space. Second the parameters are exactly determined—directly from the ciphertext—through the minimization of the average jamming noise power created by the encryption process.

Item Type: Article
Additional Information: NOTICE: This is the author’s version of a work that was accepted by Physics Letters A in June 2008. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version has be published in Physics Letters A, vol. 372, no. 34, pp. 5588-5592, 2008, DOI: 10.1016/j.physleta.2008.06.066.
Uncontrolled Keywords: secure communication, cryptanalysis, synchronization, Lorenz chaotic system, COMMUNICATION-SYSTEMS, NETWORK SECURITY, DIFFERENT ORDER, SYNCHRONIZATION, ENCRYPTION, STATE
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Divisions: Faculty of Engineering and Physical Sciences > Computing Science
Depositing User: Symplectic Elements
Date Deposited: 26 May 2012 12:28
Last Modified: 23 Sep 2013 19:26
URI: http://epubs.surrey.ac.uk/id/eprint/532450

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