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Dynamic RNA Coding Color Image Cipher Based on Chain Feedback Structure

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  • Heping Wen

    (School of Electronic Information, University of Electronic Science and Technology of China, Zhongshan Institute, Zhongshan 528402, China
    School of Information and Communication Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China)

  • Shenghao Kang

    (School of Electronic Information, University of Electronic Science and Technology of China, Zhongshan Institute, Zhongshan 528402, China)

  • Zhuxi Wu

    (School of Electronic Information, University of Electronic Science and Technology of China, Zhongshan Institute, Zhongshan 528402, China)

  • Yiting Lin

    (School of Electronic Information, University of Electronic Science and Technology of China, Zhongshan Institute, Zhongshan 528402, China
    School of Information and Communication Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China)

  • Yiming Huang

    (School of Electronic Information, University of Electronic Science and Technology of China, Zhongshan Institute, Zhongshan 528402, China)

Abstract

This paper proposes a dynamic RNA-encoded color image encryption scheme based on a chain feedback structure. Firstly, the color pure image is decomposed into red, green, and blue components, and then a chaotic sequence based on plaintext association is introduced to encrypt the red component. Secondly, the intermediate ciphertext is obtained by diffusion after encryption by bit-level permutation, RNA dynamic encoding, RNA dynamic operation rules, and RNA dynamic decoding. Finally, to enhance the security of the image cryptosystem, the green and blue components of the image are repeatedly encrypted using the chain encryption mechanism associated with the intermediate ciphertext to obtain the color cryptographic image. In this paper, a 2D-SFHM chaotic system is used to provide pseudo-random chaotic sequences, and its initial key is calculated by combining the hash function and external parameters of the image, and the one-time ciphertext encryption strategy causes the proposed encryption to effectively resist cryptographic attacks. Experimental results and security analysis show that our encryption algorithm has excellent encryption effects and security performance against various typical attacks.

Suggested Citation

  • Heping Wen & Shenghao Kang & Zhuxi Wu & Yiting Lin & Yiming Huang, 2023. "Dynamic RNA Coding Color Image Cipher Based on Chain Feedback Structure," Mathematics, MDPI, vol. 11(14), pages 1-17, July.
    • Handle: RePEc:gam:jmathe:v:11:y:2023:i:14:p:3133-:d:1195093
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    References listed on IDEAS

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    1. Banerjee, Malay & Ghosh, Samiran & Manfredi, Piero & d’Onofrio, Alberto, 2023. "Spatio-temporal chaos and clustering induced by nonlocal information and vaccine hesitancy in the SIR epidemic model," Chaos, Solitons & Fractals, Elsevier, vol. 170(C).
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