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New chaotic image encryption algorithm based on cross-mapping

  • Published:
Wuhan University Journal of Natural Sciences

Abstract

Chaotic cryptography has been applied to image encryption; however, only the traditional low-dimensional chaotic systems has been widely analyzed or deciphered, which does not show satisfied security and efficiency. To solve this problem, a new algorithm based on cross-chaos map has been created in this article. The image pixels are scrambled under control of high-dimensional chaotic sequence, which is generated by cross chaotic map. The image pixels are substituted by ciphertext feedback algorithm. It can relate encryption required parameters with plaintext and can make a plaintext byte affect more ciphertext bytes. Proved by theoretical analysis and experimental results, the algorithm has higher complex degree and has passed SP800-22 pseudo-random number standard tests, and it has high encryption speed, high security, etc. It can be widely applied in the field of image encryption.

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Authors and Affiliations

  1. School of Computer Science and Technology, Harbin Institute of Technology, Weihai, 264209, Shandong, China

    Xiaojun Tong, Yang Liu, Miao Zhang & Hongyu Shi

Authors
  1. Xiaojun Tong
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  2. Yang Liu
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  3. Miao Zhang
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  4. Hongyu Shi
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Corresponding author

Correspondence to Xiaojun Tong.

Additional information

Foundation item: Supported by the National Natural Science Foundation of China (60973162), the Natural Science Foundation of Shandong Province of China (ZR2009GM037), the Science and Technology Project of Shandong Province, China (2010GGX10132, 2012GGX10110), the Key Natural Science Foundation of Shandong Province of China (Z2006G01), and the Soft Science Project of Shangdong Province of China (2012RKA10009)

Biography: TONG Xiaojun, female, Professor, research direction: chaos cryptography and information security.

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Tong, X., Liu, Y., Zhang, M. et al. New chaotic image encryption algorithm based on cross-mapping. Wuhan Univ. J. Nat. Sci. 17, 461–467 (2012). https://doi.org/10.1007/s11859-012-0871-y

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  • DOI: https://doi.org/10.1007/s11859-012-0871-y

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