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Image Encryption Algorithm Based on a New Two-Dimensional Chaotic System and Rotating Dial Model.

Xiaoqiang Zhang1, Haoran Hu1

  • 1School of Information and Control Engineering, China University of Mining and Technology, Xuzhou 221116, China.

Entropy (Basel, Switzerland)
|May 26, 2026
PubMed
Summary
This summary is machine-generated.

This study introduces a new image encryption algorithm using a two-dimensional chaotic system (2D-SCMM) and a rotating dial model for secure digital image transmission and storage. The algorithm demonstrates high security against various attacks.

Keywords:
dynamic diffusionimage securityrotating dial modeltwo-dimensional chaotic system

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Area of Science:

  • Computer Science
  • Information Security
  • Applied Mathematics

Background:

  • Digital image security is crucial due to rapid IT advancements.
  • Existing encryption methods face challenges in secure transmission and storage.
  • Need for robust algorithms to prevent image theft and unauthorized access.

Purpose of the Study:

  • To propose a novel image encryption algorithm.
  • To enhance security for digital image transmission and storage.
  • To safeguard image information from theft and network threats.

Main Methods:

  • Design and analysis of a two-dimensional sine-cubic modular map (2D-SCMM) chaotic system.
  • Implementation of a diagonal cyclic-shift transformation for pixel scrambling.
  • Utilization of a rotating dial model for pixel diffusion inspired by dial phones.

Main Results:

  • Comprehensive dynamic analyses and randomness assessments of the 2D-SCMM.
  • Even distribution of image pixels post-encryption.
  • High average entropy (7.9993) and near-zero correlation coefficients for grayscale images.

Conclusions:

  • The proposed algorithm offers robust security for digital images.
  • Effective against various attacks including noise and cropping.
  • Provides enhanced security for image transmission and storage.