中国物理B ›› 2022, Vol. 31 ›› Issue (4): 40501-040501.doi: 10.1088/1674-1056/ac272d

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Neural-mechanism-driven image block encryption algorithm incorporating a hyperchaotic system and cloud model

Peng-Fei Fang(方鹏飞)1, Han Liu(刘涵)1,†, Cheng-Mao Wu(吴成茂)2, and Min Liu(刘旻)3   

  1. 1 School of Automation and Information Engineering, Xi'an University of Technology, Xi'an 710048, China;
    2 School of Electronic Engineering, Xi'an University of Posts&Telecommunications, Xi'an 710061, China;
    3 School of Engineering and Computer Science, Australian National University, Canberra 0200, Australia
  • 收稿日期:2021-07-26 修回日期:2021-08-27 接受日期:2021-09-16 出版日期:2022-03-16 发布日期:2022-03-10
  • 通讯作者: Han Liu E-mail:liuhan@xaut.edu.cn
  • 基金资助:
    We thank all the teachers in the research group. Project supported by the National Natural Science Foundation of China (Grant No. 61973248) and the Key Project of the Shaanxi Key Research and Development Program, China (Grant No. 2018ZDXM-GY-089).

Neural-mechanism-driven image block encryption algorithm incorporating a hyperchaotic system and cloud model

Peng-Fei Fang(方鹏飞)1, Han Liu(刘涵)1,†, Cheng-Mao Wu(吴成茂)2, and Min Liu(刘旻)3   

  1. 1 School of Automation and Information Engineering, Xi'an University of Technology, Xi'an 710048, China;
    2 School of Electronic Engineering, Xi'an University of Posts&Telecommunications, Xi'an 710061, China;
    3 School of Engineering and Computer Science, Australian National University, Canberra 0200, Australia
  • Received:2021-07-26 Revised:2021-08-27 Accepted:2021-09-16 Online:2022-03-16 Published:2022-03-10
  • Contact: Han Liu E-mail:liuhan@xaut.edu.cn
  • Supported by:
    We thank all the teachers in the research group. Project supported by the National Natural Science Foundation of China (Grant No. 61973248) and the Key Project of the Shaanxi Key Research and Development Program, China (Grant No. 2018ZDXM-GY-089).

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摘要： An image encryption algorithm is proposed in this paper based on a new four-dimensional hyperchaotic system, a neural mechanism, a Galois field and an improved Feistel block structure, which improves the efficiency and enhances the security of the encryption algorithm. Firstly, a four-dimensional hyperchaotic system with a large key space and chaotic dynamics performance is proposed and combined with a cloud model, in which a more complex and random sequence is constructed as the key stream, and the problem of chaotic periodicity is solved. Then, the key stream is combined with the neural mechanism, Galois field and improved Feistel block structure to scramble and diffuse the image encryption. Finally, the experimental results and security analysis show that the encryption algorithm has a good encryption effect and high encryption efficiency, is secure, and can meet the requirements of practical applications.

关键词: image encryption, neural mechanism, hyperchaotic system

Abstract: An image encryption algorithm is proposed in this paper based on a new four-dimensional hyperchaotic system, a neural mechanism, a Galois field and an improved Feistel block structure, which improves the efficiency and enhances the security of the encryption algorithm. Firstly, a four-dimensional hyperchaotic system with a large key space and chaotic dynamics performance is proposed and combined with a cloud model, in which a more complex and random sequence is constructed as the key stream, and the problem of chaotic periodicity is solved. Then, the key stream is combined with the neural mechanism, Galois field and improved Feistel block structure to scramble and diffuse the image encryption. Finally, the experimental results and security analysis show that the encryption algorithm has a good encryption effect and high encryption efficiency, is secure, and can meet the requirements of practical applications.

Key words: image encryption, neural mechanism, hyperchaotic system

中图分类号:  (Control of chaos, applications of chaos)

  • 05.45.Gg
07.05.Pj (Image processing)