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Hyper-Chaotic Color Image Encryption Based on Transformed Zigzag Diffusion and RNA Operation.

Duzhong Zhang1, Lexing Chen1, Taiyong Li1

  • 1School of Economic Information Engineering, Southwestern University of Finance and Economics, Chengdu 611130, China.

Entropy (Basel, Switzerland)
|April 3, 2021
PubMed
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A Novel Image Encryption Approach Based on a Hyperchaotic System, Pixel-Level Filtering with Variable Kernels, and DNA-Level Diffusion.

Entropy (Basel, Switzerland)·2020

A new hyper-chaotic encryption scheme (HCZRNA) offers robust protection for digital color images. This method uses advanced diffusion and RNA operations, proving superior against common attacks.

Area of Science:

  • Computer Science
  • Information Security
  • Cryptography

Background:

  • Digital information security is critical with rising internet use.
  • Image encryption is vital for protecting visual data in modern society.
  • Existing encryption methods face challenges in security and efficiency.

Purpose of the Study:

  • To propose a novel and secure image encryption scheme for color images.
  • To enhance the security and efficiency of digital image protection.
  • To address the need for robust encryption against sophisticated attacks.

Main Methods:

  • A six-dimensional (6D) hyper-chaotic system generates pseudo-random matrices.
  • Plaintext image permutation using a pseudo-random matrix.
  • Three-dimensional (3D) transformed Zigzag diffusion on a cube structure.
Keywords:
color image encryptionhyper-chaoticribonucleic acidtransformed Zigzag

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  • RNA codon operations for final image encryption.

    • Main Results:

    • The proposed HCZRNA scheme successfully encrypts color images.
    • Experimental results demonstrate high resistance to known cryptanalytic attacks.
    • The HCZRNA scheme outperforms existing encryption methods in security and effectiveness.

    Conclusions:

    • The HCZRNA scheme provides a secure and effective solution for color image encryption.
    • The combination of hyper-chaotic systems, 3D Zigzag diffusion, and RNA operations enhances security.
    • This novel approach offers a promising direction for digital information protection.