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Baptista-type chaotic cryptosystems: Problems and countermeasures

Li, SJ, Chen, GR, Wong, K-W, Mou, XQ and Cai, YL (2004) Baptista-type chaotic cryptosystems: Problems and countermeasures Physics Letters. Section A: General, Atomic and Solid State Physics, 332 (5-6). pp. 368-375.

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In 1998, M.S. Baptista proposed a chaotic cryptosystem, which has attracted much attention from the chaotic cryptography community: some of its modifications and also attacks have been reported in recent years. In [Phys. Lett. A 307 (2003) 22], we suggested a method to enhance the security of Baptista-type cryptosystem, which can successfully resist all proposed attacks. However, the enhanced Baptista-type cryptosystem has a non-trivial defect, which produces errors in the decrypted data with a generally small but non-zero probability, and the consequent error propagation exists. In this Letter, we analyze this defect and discuss how to rectify it. In addition, we point out some newly-found problems existing in all Baptista-type cryptosystems and consequently propose corresponding countermeasures.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Computing Science
Authors :
Li, SJ
Chen, GR
Wong, K-W
Mou, XQ
Cai, YL
Date : 1 November 2004
DOI : 10.1016/j.physleta.2004.09.028
Related URLs :
Additional Information : NOTICE: this is the preprint version of a work that was submitted and subsequently accepted for publication in Physics Letters. Section A. 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 was subsequently published in Physics Letters. Section A, 332(5-6), November 2004, DOI 10.1016/j.physleta.2004.09.028.
Depositing User : Symplectic Elements
Date Deposited : 19 Feb 2013 15:07
Last Modified : 31 Oct 2017 14:35

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