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A Simple Chaotic Map-Based Image Encryption System Using Both Plaintext Related Permutation and Diffusion.

Linqing Huang1, Shuting Cai1, Mingqing Xiao2

  • 1School of Automation, Guangdong University of Technology, Guangzhou 510006, China.

Entropy (Basel, Switzerland)
|December 3, 2020
PubMed
Summary
This summary is machine-generated.

This study introduces a novel chaotic image encryption system that enhances security and efficiency. By integrating plaintext-related permutation and diffusion, it effectively resists sophisticated attacks and achieves high performance in a single round.

Keywords:
cat mapimage cryptosystemplaintext relatedplaintext sensitivity

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Area of Science:

  • Computer Science
  • Cryptography
  • Image Processing

Background:

  • Traditional chaos-based image cryptosystems often exhibit security flaws, particularly susceptibility to chosen/known plaintext attacks and differential attacks due to inadequate plaintext sensitivity.
  • Existing plaintext-related schemes may suffer from insufficient plaintext sensitivity, real-time encryption limitations, and low efficiency requiring multiple encryption rounds.

Purpose of the Study:

  • To develop a simple, efficient, and highly secure chaotic system for color image encryption.
  • To enhance plaintext sensitivity and resist advanced cryptanalytic attacks through integrated plaintext-related operations.

Main Methods:

  • A novel chaotic image encryption system employing both plaintext-related permutation and diffusion.
  • Utilizing a cat map for permutation, with parameters influenced by the plain image and diffusion operations.
  • Integrating diffusion stage influenced by permutation parameters and plain image.

Main Results:

  • The proposed system achieves high key sensitivity and plaintext sensitivity, effectively resisting chosen/known plaintext and differential attacks.
  • A single round of plaintext-related permutation and diffusion is sufficient for processing, significantly improving efficiency.
  • Simulation results validate the excellent security and efficiency of the proposed chaotic image encryption scheme.

Conclusions:

  • The developed chaotic image encryption system offers a robust solution for secure and efficient color image protection.
  • The integration of plaintext-related permutation and diffusion in a single round provides a significant advancement in chaos-based cryptography.
  • The scheme demonstrates superior performance in terms of security and speed compared to existing methods.