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On the Cryptanalysis of a Bit-Level Image Chaotic Encryption Algorithm

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  • Yingchun Hu
  • Simin Yu
  • Zeqing Zhang

Abstract

In this paper, the security analysis of a bit-level image chaotic encryption algorithm based on the 1D chaotic map is proposed. The original image chaotic encryption algorithm includes bit-level permutation encryption, diffusion encryption, and linear transform. Deciphering of it can be divided into two stages. First, bit-level permutation encryption, diffusion encryption, and linear transform can be simplified into bit-level equivalent permutation encryption and equivalent diffusion encryption, which is a key breakthrough point of cryptanalysis. Second, the chaotic sequence generated by this algorithm is independent of the plaintext image. Therefore, the equivalent diffusion key and the equivalent permutation key can be obtained by chosen-plaintext attack, respectively. Theoretical analysis and numerical simulation experiment results verify the effectiveness of the analytical method. Finally, some suggestions are proposed to promote the security of the original image chaotic encryption algorithm.

Suggested Citation

  • Yingchun Hu & Simin Yu & Zeqing Zhang, 2020. "On the Cryptanalysis of a Bit-Level Image Chaotic Encryption Algorithm," Mathematical Problems in Engineering, Hindawi, vol. 2020, pages 1-15, August.
    • Handle: RePEc:hin:jnlmpe:5747082
    DOI: 10.1155/2020/5747082
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    Cited by:

    1. Heping Wen & Zhen Liu & Haowen Lai & Chongfu Zhang & Linhao Liu & Jieyi Yang & Yiting Lin & Yunqi Li & Yunlong Liao & Linchao Ma & Zefeng Chen & Rui Li, 2022. "Secure DNA-Coding Image Optical Communication Using Non-Degenerate Hyperchaos and Dynamic Secret-Key," Mathematics, MDPI, vol. 10(17), pages 1-18, September.
    2. Folifack Signing, V.R. & Gakam Tegue, G.A. & Kountchou, M. & Njitacke, Z.T. & Tsafack, N. & Nkapkop, J.D.D. & Lessouga Etoundi, C.M. & Kengne, J., 2022. "A cryptosystem based on a chameleon chaotic system and dynamic DNA coding," Chaos, Solitons & Fractals, Elsevier, vol. 155(C).

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