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A More Secure Chaotic Cryptographic Scheme Based on the Dynamic Look-Up Table

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Abstract

We have proposed a chaotic cryptographic scheme based on iterating the logistic map and updating the look-up table dynamically. However, it has been broken recently. In this paper, the weaknesses of the original dynamic look-up table scheme are analyzed and a more secure chaotic encryption scheme based on this dynamic look-up table concept is proposed. Theoretical analysis indicates that the modified scheme can resist the reported attacks. Moreover, simulation results show that this encryption scheme leads to a flat ciphertext distribution.

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Authors and Affiliations

  1. Department of Computer Engineering and Information Technology, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon Tong, Hong Kong

    Kwok-Wo Wong & Kwan-Pok Man

  2. Department of Electronic Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon Tong, Hong Kong

    Shujun Li

  3. Department of Computer Science and Engineering, Chongqing University, Chongqing 400044, People’s Republic of China

    Xiaofeng Liao

Authors
  1. Kwok-Wo Wong
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  2. Kwan-Pok Man
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  3. Shujun Li
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  4. Xiaofeng Liao
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Corresponding authors

Correspondence to Kwok-Wo Wong, Kwan-Pok Man, Shujun Li or Xiaofeng Liao.

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Wong, KW., Man, KP., Li, S. et al. A More Secure Chaotic Cryptographic Scheme Based on the Dynamic Look-Up Table. Circuits Syst Signal Process 24, 571–584 (2005). https://doi.org/10.1007/s00034-005-2408-5

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  • DOI: https://doi.org/10.1007/s00034-005-2408-5

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