Baptista-type chaotic cryptosystems: Problems and countermeasures

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dc.creatorLi, Shujun
dc.creatorChen, Guanrong
dc.creatorWong, Kwok-Wo
dc.creatorMou, Xuanqin
dc.creatorCai, Yuanlong
dc.date2004-02-02
dc.date2004-11-03
dc.date.accessioned2026-07-07T03:20:51Z
dc.date.available2026-07-07T03:20:51Z
dc.descriptionIn 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 nontrivial defect, which produces errors in the decrypted data with a generally small but nonzero 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.
dc.description13 pages, 2 figures
dc.identifierhttps://arxiv.org/abs/cs/0402004
dc.identifierhttp://arxiv.org/abs/cs/0402004
dc.identifierPhysics Letters A, 332(5-6):368-375, 2004
dc.identifierdoi:10.1016/j.physleta.2004.09.028
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/31980
dc.subjectCryptography and Security
dc.subjectChaotic Dynamics
dc.subjectE.3
dc.titleBaptista-type chaotic cryptosystems: Problems and countermeasures
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