Cryptography with chaotic mixing

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• 作者：Luiz P.L. de Oliveira ; Marcelo Sobottka
• 关键词：Cosmic-ray proton ; Cosmic-ray helium ; Atmospheric proton ; Solar modulation ; Superconducting spectrometer
• 刊名：Chaos, Solitons and Fractals
• 出版年：2008
• 出版时间：February 2008
• 年：2008
• 卷：35
• 期：3
• 页码：466-471
• 全文大小：188 K

文摘

We propose a cryptosystem based on one-dimensional chaotic maps of the form defined in the interval [0, 10^p) for a positive integer parameter p, where and , which is a topological conjugacy between 52bf356fb02b4fb0091fb783c""> and the shift map σ on the space Σ of the sequences with 10 symbols. There are three advantages in comparison with the recently proposed cryptosystem based on chaotic logistic maps with 3 < μ 4: (a) 52b40be2853f548b4504a""> is always chaotic for all parameters p, (b) the knowledge of an ergodic measure allows assignments of the alphabetic symbols to equiprobable sites of ’s domain and (c) for each p, the security of the cryptosystem is manageable against brute force attacks.