Baptista-type chaotic cryptosystems : Problems and countermeasures
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Author(s)
Related Research Unit(s)
Detail(s)
Original language | English |
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Pages (from-to) | 368-375 |
Journal / Publication | Physics Letters, Section A: General, Atomic and Solid State Physics |
Volume | 332 |
Issue number | 5-6 |
Publication status | Published - 22 Nov 2004 |
Link(s)
Abstract
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. © 2004 Elsevier B.V. All rights reserved.
Research Area(s)
- Baptista-type chaotic cryptosystem, Chaos, Cryptanalysis, Encryption
Citation Format(s)
Baptista-type chaotic cryptosystems: Problems and countermeasures. / Li, Shujun; Chen, Guanrong; Wong, Kwok-Wo et al.
In: Physics Letters, Section A: General, Atomic and Solid State Physics, Vol. 332, No. 5-6, 22.11.2004, p. 368-375.
In: Physics Letters, Section A: General, Atomic and Solid State Physics, Vol. 332, No. 5-6, 22.11.2004, p. 368-375.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review