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Development of a Novel Hyperchaos-Based Image Encryption Algorithm Consisting of Two Scrambling-Diffusion Operations

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  • Yongzhong Huang
  • Xueguang Bi
  • Yucheng Liu
  • Yuxia Li
  • Jesus M. Munoz-Pacheco

Abstract

This paper proposes a hyperchaos-based image encryption algorithm, which consists of two scrambling-diffusion operations and one scrambling operation. In the proposed algorithm, the initial conditions of a hyperchaotic Chen system are first generated using the Message Digest 5 (MD5) value of digital images and given initial values, and then the images will be encrypted using the keystream created by the system. Since the initial values of hyperchaotic Chen systems are related to plaintext and the encryption process is related to the images, this algorithm is able to effectively protect images against selective plaintext attacks. Simulation results demonstrate that the present algorithm offers enhanced encryption performance, high security, and strong resistance to known attacks. Therefore, it may find wide application in image encryption transmission. Compared to other image encryption algorithms, the proposed algorithm uses different keystreams when encrypting different images and is capable of effectively resisting various plain image and differential attacks faster.

Suggested Citation

  • Yongzhong Huang & Xueguang Bi & Yucheng Liu & Yuxia Li & Jesus M. Munoz-Pacheco, 2022. "Development of a Novel Hyperchaos-Based Image Encryption Algorithm Consisting of Two Scrambling-Diffusion Operations," Complexity, Hindawi, vol. 2022, pages 1-15, October.
    • Handle: RePEc:hin:complx:8765268
    DOI: 10.1155/2022/8765268
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