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Encrypting images using multiple fractional-order drive–response systems with practical finite-time synchronization

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  • Chen, Jiale
  • Sun, Weigang
  • Zheng, Song

Abstract

This study proposes an image encryption scheme leveraging the synchronization of multiple fractional-order drive–response systems. Utilizing fractional-order practical finite-time (PFT) theory, we derive estimations for settling time and error bound, which are then designated as encryption keys within the scheme. The framework incorporates dual and combination synchronization mechanisms to enhance robustness. Appropriate controllers are designed to achieve PFT synchronization of multiple drive–response systems under external disturbances. Subsequently, we apply this synchronization framework to perform simultaneous encryption on two partitioned images. Numerical simulations validate the scheme’s feasibility and effectiveness, highlighting its potential for secure image encryption.

Suggested Citation

  • Chen, Jiale & Sun, Weigang & Zheng, Song, 2026. "Encrypting images using multiple fractional-order drive–response systems with practical finite-time synchronization," Mathematics and Computers in Simulation (MATCOM), Elsevier, vol. 240(C), pages 423-437.
    • Handle: RePEc:eee:matcom:v:240:y:2026:i:c:p:423-437
    DOI: 10.1016/j.matcom.2025.07.023
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    References listed on IDEAS

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