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A double scrambling-DNA row and column closed loop image encryption algorithm based on chaotic system.

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Summary
This summary is machine-generated.

This study introduces a novel dynamic update algorithm for secure information transmission. The method enhances data security and transmission efficiency using a chaotic system with DNA scrambling and diffusion.

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Area of Science:

  • Cryptography
  • Information Security
  • Applied Mathematics

Background:

  • Classical scrambling and diffusion methods have limitations.
  • Efficient and secure data transmission is crucial in modern communication.

Purpose of the Study:

  • To propose a dynamic update algorithm for double scrambling-DNA encryption.
  • To enhance information transmission efficiency and security.

Main Methods:

  • A novel pixel reconstruction method combining Hilbert curve and Knuth-Durstenfeld shuffle for scrambling.
  • Improved block diffusion using DNA encoding with two-round diffusion.
  • Closed-loop dynamic update of the encryption system.
  • SHA-256 for key generation and chaotic system initialization.

Main Results:

  • Achieved good scrambling effect with reduced time and space complexity.
  • Enhanced diffusion through DNA encoding.
  • Realized a closed-loop dynamic update for the encryption system.
  • Simulation results demonstrate improved efficiency and high security.

Conclusions:

  • The proposed algorithm effectively improves information transmission efficiency.
  • The dynamic update algorithm offers high security for data encryption.