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/content/aip/journal/chaos/18/3/10.1063/1.2969068
1.
1.R. Rhouma and B. Safya, “On the security of a spatiotemporal chaotic cryptosystem,” Chaos 17, 033117 (2007).
http://dx.doi.org/10.1063/1.2756297
2.
2.G. Tang, S. Wang, H. , and G. Hu, “Chaos-based cryptograph incorporated with S-box algebraic operation,” Phys. Lett. A 318, 388 (2003).
http://dx.doi.org/10.1016/j.physleta.2003.09.042
3.
3.S. Wang and G. Hu, “A self-synchronizing stream cipher based on chaotic coupled maps,” http://arxiv.org/abs/0806.3129.
http://aip.metastore.ingenta.com/content/aip/journal/chaos/18/3/10.1063/1.2969068
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/content/aip/journal/chaos/18/3/10.1063/1.2969068
2008-08-15
2016-09-27

Abstract

This paper comments on a recent paper by R. Rhouma and B. Safya [Chaos17, 033117 (Year: 2007)]. They claimed to find some security weakness of the spatiotemporal chaotic cryptosystem suggested by G. Tang et al. [Phys. Lett. A318, 388 (Year: 2003)] and proposed a chosen-plaintext attack to analyze this system. We find that in their analysis, called a “chosen-plaintext attack,” they actually act as a legal receiver (with a machine in their hands during the entire decryption process) rather than an attacker and, therefore, the whole reasoning is not valid.

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