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Color image encryption algorithm based on ∞-shaped transformation and closed-loop control model.

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Summary
This summary is machine-generated.

This study introduces a novel color image encryption algorithm using an infinity-shaped transformation and closed-loop control for enhanced security. The method offers a large key space and strong resistance to various attacks.

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Area of Science:

  • Computer Science
  • Information Security
  • Cryptography

Background:

  • Color image security is crucial in the digital age.
  • Traditional scrambling-diffusion methods have limitations.

Purpose of the Study:

  • To propose a novel color image encryption algorithm.
  • To enhance image security using an infinity-shaped transformation and closed-loop control.

Main Methods:

  • Merging three color channels and applying row-wise closed-loop diffusion.
  • Scrambling using an infinity-shaped transformation.
  • Applying column-wise closed-loop diffusion for final encryption.

Main Results:

  • Achieved effective inter-channel pixel confusion and diffusion.
  • Key space size of 2^413.
  • Information entropy approaching 8.
  • High sensitivity (NPCR > 99.6%, UACI > 33.4%).

Conclusions:

  • The proposed algorithm offers excellent overall performance.
  • Demonstrates strong robustness against differential, statistical, and brute-force attacks.
  • Provides effective color image encryption.