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Determination of the parameters for a Lorenz system and application to break the security of two-channel chaotic cryptosystems
Journal article   Open access  Peer reviewed

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

AB Orue, V Fernandez, G Alvarez, G Pastor, M Romera, SJ Li and F Montoya
Physics Letters. Section A: General, Atomic and Solid State Physics, Vol.372(34), pp.5588-5592
18/08/2008
DOI: https://doi.org/10.1016/j.physleta.2008.06.066

Abstract

secure communication cryptanalysis synchronization Lorenz chaotic system COMMUNICATION-SYSTEMS NETWORK SECURITY DIFFERENT ORDER SYNCHRONIZATION ENCRYPTION STATE
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.
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url
http://dx.doi.org/10.1016/j.physleta.2008.06.066View
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