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Chaotic Keystream Generator Using Coupled NDFs with Parameter Perturbing

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Cryptology and Network Security (CANS 2006)

Part of the book series: Lecture Notes in Computer Science ((LNSC,volume 4301))

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Abstract

Chaotic cryptology has been widely investigated recently. This paper analyzes the security pitfalls existing in digital chaotic stream ciphers, which work on the well characterized one-dimensional(1-D) chaotic systems. As a practical solution to these problems caused by 1-D chaotic systems, a chaotic keystream generator using nonlinear digital filters with n-D uniform distribution is proposed. To improve system security further and overcome the effects of finite wordlength, the coupling method with parameter perturbing is considered. Detailed theoretical analyses show that it has perfect cryptographic properties, and can be used to construct stream ciphers with higher security than other 1-D chaotic ciphers. Finally, some numeric experiments are made and the experimental results coincide well with the theoretical analyses.

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Author information

Authors and Affiliations

  1. Sichuan Province Key Lab of Signal and Information Processing, Southwest Jiaotong University, Chengdu, 610031, P.R. China

    Xiaomin Wang & Jiashu Zhang

  2. School of Information Science and Technology, Southwest Jiaotong University, Chengdu, 610031, P.R. China

    Wenfang Zhang

Authors
  1. Xiaomin Wang
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  2. Jiashu Zhang
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  3. Wenfang Zhang
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Editor information

Editors and Affiliations

  1. Ecole Normale Supérieure – LIENS/CNRS/INRIA,, France

    David Pointcheval

  2. Centre for Computer and Information Security Research School of Computer Science and Software Engineering, University of Wollongong, Australia

    Yi Mu

  3. Department of Computer Science and Engineering, Shanghai Jiao Tong University, 200240, Shanghai, China

    Kefei Chen

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© 2006 Springer-Verlag Berlin Heidelberg

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Wang, X., Zhang, J., Zhang, W. (2006). Chaotic Keystream Generator Using Coupled NDFs with Parameter Perturbing. In: Pointcheval, D., Mu, Y., Chen, K. (eds) Cryptology and Network Security. CANS 2006. Lecture Notes in Computer Science, vol 4301. Springer, Berlin, Heidelberg. https://doi.org/10.1007/11935070_19

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  • DOI: https://doi.org/10.1007/11935070_19

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-49462-1

  • Online ISBN: 978-3-540-49463-8

  • eBook Packages: Computer ScienceComputer Science (R0)

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