中国物理B ›› 2024, Vol. 33 ›› Issue (2): 20503-020503.doi: 10.1088/1674-1056/ad0775

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A chaotic hierarchical encryption/watermark embedding scheme for multi-medical images based on row-column confusion and closed-loop bi-directional diffusion

Zheyi Zhang(张哲祎)1, Jun Mou(牟俊)1,†, Santo Banerjee2, and Yinghong Cao(曹颖鸿)1,‡   

  1. 1 School of Information Science and Engineering, Dalian Polytechnic University, Dalian 116034, China;
    2 Department of Mathematical Sciences, Politecnico di Torino, Torino 10129, Italy
  • 收稿日期:2023-10-08 修回日期:2023-10-26 接受日期:2023-10-27 出版日期:2024-01-16 发布日期:2024-01-25
  • 通讯作者: Jun Mou, Yinghong Cao E-mail:moujun@csu.edu.cn;caoyinghong@dlpu.edu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 62061014) and the Natural Science Foundation of Liaoning province of China (Grant No. 2020-MS-274).

A chaotic hierarchical encryption/watermark embedding scheme for multi-medical images based on row-column confusion and closed-loop bi-directional diffusion

Zheyi Zhang(张哲祎)1, Jun Mou(牟俊)1,†, Santo Banerjee2, and Yinghong Cao(曹颖鸿)1,‡   

  1. 1 School of Information Science and Engineering, Dalian Polytechnic University, Dalian 116034, China;
    2 Department of Mathematical Sciences, Politecnico di Torino, Torino 10129, Italy
  • Received:2023-10-08 Revised:2023-10-26 Accepted:2023-10-27 Online:2024-01-16 Published:2024-01-25
  • Contact: Jun Mou, Yinghong Cao E-mail:moujun@csu.edu.cn;caoyinghong@dlpu.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 62061014) and the Natural Science Foundation of Liaoning province of China (Grant No. 2020-MS-274).

摘要: Security during remote transmission has been an important concern for researchers in recent years. In this paper, a hierarchical encryption multi-image encryption scheme for people with different security levels is designed, and a multi-image encryption (MIE) algorithm with row and column confusion and closed-loop bi-directional diffusion is adopted in the paper. While ensuring secure communication of medical image information, people with different security levels have different levels of decryption keys, and differentiated visual effects can be obtained by using the strong sensitivity of chaotic keys. The highest security level can obtain decrypted images without watermarks, and at the same time, patient information and copyright attribution can be verified by obtaining watermark images. The experimental results show that the scheme is sufficiently secure as an MIE scheme with visualized differences and the encryption and decryption efficiency is significantly improved compared to other works.

关键词: chaotic hierarchical encryption, multi-medical image encryption, differentiated visual effects, row-column confusion, closed-loop bi-directional diffusion, transform domain watermark embedding

Abstract: Security during remote transmission has been an important concern for researchers in recent years. In this paper, a hierarchical encryption multi-image encryption scheme for people with different security levels is designed, and a multi-image encryption (MIE) algorithm with row and column confusion and closed-loop bi-directional diffusion is adopted in the paper. While ensuring secure communication of medical image information, people with different security levels have different levels of decryption keys, and differentiated visual effects can be obtained by using the strong sensitivity of chaotic keys. The highest security level can obtain decrypted images without watermarks, and at the same time, patient information and copyright attribution can be verified by obtaining watermark images. The experimental results show that the scheme is sufficiently secure as an MIE scheme with visualized differences and the encryption and decryption efficiency is significantly improved compared to other works.

Key words: chaotic hierarchical encryption, multi-medical image encryption, differentiated visual effects, row-column confusion, closed-loop bi-directional diffusion, transform domain watermark embedding

中图分类号:  (Nonlinear dynamics and chaos)

  • 05.45.-a
05.45.Gg (Control of chaos, applications of chaos)