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Determination of the Parameters for a Lorenz System and Application to Break the Security of Two-channel Chaotic Cryptosystems

AuthorsOrúe, Amalia B.; Fernández Mármol, Verónica ; Álvarez Marañón, Gonzalo; Pastor, Gerardo; Romera, Miguel; Montoya Vitini, Fausto
KeywordsSecure communication
Lorenz chaotic system
Issue Date10-Jun-2008
AbstractThis 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.
DescriptionAccepted in Physics Letters A, (June 2008) http://dx.doi.org/10.1016/j.physleta.2008.06.066
Appears in Collections:(IFA) Artículos
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