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Related Experiment Video

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A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
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A Symmetric Plaintext-Related Color Image Encryption System Based on Bit Permutation.

Shuting Cai1, Linqing Huang1, Xuesong Chen2

  • 1School of Automation, Guangdong University of Technology, Guangzhou 510006, China.

Entropy (Basel, Switzerland)
|December 3, 2020
PubMed
Summary

This study introduces a novel symmetric color image encryption system. The new method enhances security against chosen-plaintext and chosen-ciphertext attacks by making the encryption highly sensitive to both the key and the original image.

Keywords:
PRRABPMbit-level permutationimage encryptionplaintext related

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Area of Science:

  • Cryptography
  • Image Processing
  • Computer Science

Background:

  • Traditional chaos-based image encryption methods often lack robustness against sophisticated attacks.
  • Existing algorithms exhibit insufficient sensitivity to plain-image modifications, creating vulnerabilities.

Purpose of the Study:

  • To propose a novel symmetric color image encryption system.
  • To enhance resistance against chosen-plaintext and chosen-ciphertext attacks.

Main Methods:

  • A plaintext-related random access bit-permutation mechanism (PRRABPM) is introduced.
  • The PRRABPM shuffles the 3D bit matrix of the color image, enabling RGB component interaction.
  • Key streams are ingeniously dependent on the plain image for enhanced security.

Main Results:

  • The proposed encryption system demonstrates high sensitivity to minor changes in the key and original images.
  • The algorithm effectively resists chosen-plaintext and chosen-ciphertext attacks.
  • Favorable security performance is achieved with a single permutation-diffusion operation.

Conclusions:

  • The developed symmetric image encryption system offers robust security against advanced cryptanalytic attacks.
  • The system's sensitivity to input variations ensures data integrity and confidentiality.
  • Potential for improved encryption speed for real-time applications exists.