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An Image Encryption Algorithm Based on Multichaotic System and DNA Coding

Author

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  • Jiming Zheng
  • Zheng Luo
  • Zhirui Tang

Abstract

In this paper, an improved two-dimensional logistic-sine coupling map (N2D-LSCM) and an improved Henon map (NHenon) are proposed. Furthermore, by combining N2D-LSCM and NHenon map, an image encryption algorithm is proposed based on these two chaotic systems and DNA coding. The chaotic sequences generated by N2D-LSCM are used as the parameters of NHenon. In the scrambling stage, DNA encoding is carried out for pixels after scrambling by two chaotic sequences generated by N2D-LSCM; in the stage of diffusion, DNA random coding acts on random matrix obtained by two chaotic sequences generated by NHenon, and DNA XOR operation is carried out with the image obtained in the scrambling stage to diffuse. Compared with other 2D map for image encryption algorithm, this algorithm exhibits good security and holds high efficiency.

Suggested Citation

  • Jiming Zheng & Zheng Luo & Zhirui Tang, 2020. "An Image Encryption Algorithm Based on Multichaotic System and DNA Coding," Discrete Dynamics in Nature and Society, Hindawi, vol. 2020, pages 1-16, September.
    • Handle: RePEc:hin:jnddns:5982743
    DOI: 10.1155/2020/5982743
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