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An improved Dijkstra cross-plane image encryption algorithm based on a chaotic system.

Pijun Hou1, Yuepeng Wang2, Ziming Shi3

  • 1The Key Laboratory of Advanced Design and Intelligent Computing, School of Software Engineering, Dalian University, Dalian, China.

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|June 25, 2024
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Summary
This summary is machine-generated.

This study introduces a novel color image encryption method that leverages cross-plane pixel relationships for enhanced security and efficiency. The new approach ensures high-quality, lossless image encryption suitable for telemedicine and sensitive data.

Keywords:
Dijkstra algorithmadaptive diffusionchaotic systemcross-plane scramblingimage encryption

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Area of Science:

  • Computer Science
  • Information Security
  • Image Processing

Background:

  • Traditional color image encryption treats color planes independently, leading to inefficiencies.
  • Existing methods often overlook the inherent correlations between color image planes.
  • This results in duplicated operations and reduced encryption effectiveness.

Purpose of the Study:

  • To develop an efficient and secure color image encryption scheme that utilizes inter-plane pixel relationships.
  • To address the limitations of existing methods in handling color image data.
  • To provide a robust solution for lossless image encryption, particularly for sensitive applications like telemedicine.

Main Methods:

  • Introduction of a new 1D chaotic system with proven chaotic randomness.
  • Implementation of a shortest-path cross-plane scrambling algorithm based on an enhanced Dijkstra algorithm for pixel shuffling.
  • Integration of the scrambling algorithm with an adaptive diffusion technique for cross-plane diffusion.

Main Results:

  • The proposed scheme effectively encrypts color images without quality loss, suitable for standard RGB and medical images.
  • Security analysis confirms the approach's robustness against various ciphertext analysis attacks.
  • Simulation results validate the efficiency and high security of the encryption method.

Conclusions:

  • The novel encryption scheme offers a reliable solution for securing sensitive color images by exploiting cross-plane pixel correlations.
  • The method enhances security and efficiency compared to traditional plane-by-plane encryption.
  • It provides a lossless and robust encryption suitable for critical applications such as telemedicine.