中国物理B ›› 2024, Vol. 33 ›› Issue (3): 30501-030501.doi: 10.1088/1674-1056/ad1030

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A lightweight symmetric image encryption cryptosystem in wavelet domain based on an improved sine map

Baichi Chen(陈柏池)1,†, Linqing Huang(黄林青)1,†, Shuting Cai(蔡述庭)2, Xiaoming Xiong(熊晓明)2, and Hui Zhang(张慧)3,‡   

  1. 1 School of Advanced Manufacturing, Guangdong University of Technology, Jieyang 522000, China;
    2 School of Integrated Circuits, Guangdong University of Technology, Guangzhou 510006, China;
    3 School of Automation, Guangdong University of Technology, Guangzhou 510006, China
  • 收稿日期:2023-10-21 修回日期:2023-11-20 接受日期:2023-11-28 出版日期:2024-02-22 发布日期:2024-03-06
  • 通讯作者: Hui Zhang E-mail:zh2008@gdut.edu.cn
  • 基金资助:
    Project supported by the Key Area Research and Development Program of Guangdong Province, China (Grant No. 2022B0701180001), the National Natural Science Foundation of China (Grant No. 61801127), the Science Technology Planning Project of Guangdong Province, China (Grant Nos. 2019B010140002 and 2020B111110002), and the Guangdong–Hong Kong–Macao Joint Innovation Field Project (Grant No. 2021A0505080006).

A lightweight symmetric image encryption cryptosystem in wavelet domain based on an improved sine map

Baichi Chen(陈柏池)1,†, Linqing Huang(黄林青)1,†, Shuting Cai(蔡述庭)2, Xiaoming Xiong(熊晓明)2, and Hui Zhang(张慧)3,‡   

  1. 1 School of Advanced Manufacturing, Guangdong University of Technology, Jieyang 522000, China;
    2 School of Integrated Circuits, Guangdong University of Technology, Guangzhou 510006, China;
    3 School of Automation, Guangdong University of Technology, Guangzhou 510006, China
  • Received:2023-10-21 Revised:2023-11-20 Accepted:2023-11-28 Online:2024-02-22 Published:2024-03-06
  • Contact: Hui Zhang E-mail:zh2008@gdut.edu.cn
  • Supported by:
    Project supported by the Key Area Research and Development Program of Guangdong Province, China (Grant No. 2022B0701180001), the National Natural Science Foundation of China (Grant No. 61801127), the Science Technology Planning Project of Guangdong Province, China (Grant Nos. 2019B010140002 and 2020B111110002), and the Guangdong–Hong Kong–Macao Joint Innovation Field Project (Grant No. 2021A0505080006).

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摘要： In the era of big data, the number of images transmitted over the public channel increases exponentially. As a result, it is crucial to devise the efficient and highly secure encryption method to safeguard the sensitive image. In this paper, an improved sine map (ISM) possessing a larger chaotic region, more complex chaotic behavior and greater unpredictability is proposed and extensively tested. Drawing upon the strengths of ISM, we introduce a lightweight symmetric image encryption cryptosystem in wavelet domain (WDLIC). The WDLIC employs selective encryption to strike a satisfactory balance between security and speed. Initially, only the low-frequency-low-frequency component is chosen to encrypt utilizing classic permutation and diffusion. Then leveraging the statistical properties in wavelet domain, Gaussianization operation which opens the minds of encrypting image information in wavelet domain is first proposed and employed to all sub-bands. Simulations and theoretical analysis demonstrate the high speed and the remarkable effectiveness of WDLIC.

关键词: image encryption, discrete wavelet transform, 1D-chaotic system, selective encryption, Gaussianization operation

Abstract: In the era of big data, the number of images transmitted over the public channel increases exponentially. As a result, it is crucial to devise the efficient and highly secure encryption method to safeguard the sensitive image. In this paper, an improved sine map (ISM) possessing a larger chaotic region, more complex chaotic behavior and greater unpredictability is proposed and extensively tested. Drawing upon the strengths of ISM, we introduce a lightweight symmetric image encryption cryptosystem in wavelet domain (WDLIC). The WDLIC employs selective encryption to strike a satisfactory balance between security and speed. Initially, only the low-frequency-low-frequency component is chosen to encrypt utilizing classic permutation and diffusion. Then leveraging the statistical properties in wavelet domain, Gaussianization operation which opens the minds of encrypting image information in wavelet domain is first proposed and employed to all sub-bands. Simulations and theoretical analysis demonstrate the high speed and the remarkable effectiveness of WDLIC.

Key words: image encryption, discrete wavelet transform, 1D-chaotic system, selective encryption, Gaussianization operation

中图分类号:  (Nonlinear dynamics and chaos)

  • 05.45.-a
43.60.Hj (Time-frequency signal processing, wavelets)