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Double Quantum Image Encryption Based on Arnold Transform and Qubit Random Rotation.

Xingbin Liu1, Di Xiao1, Cong Liu2

  • 1College of Computer Science, Chongqing University, Chongqing 400044, China.

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|December 3, 2020
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Summary
This summary is machine-generated.

This study introduces a novel double quantum image encryption method using quantum Arnold transform (QAT) and qubit random rotation. This approach enhances security and computational efficiency for quantum image encryption.

Keywords:
Arnold transforminformation securityquantum Fourier transformquantum image encryptionquantum image representation

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Area of Science:

  • Quantum Information Science
  • Cryptography
  • Image Processing

Background:

  • Classical image encryption methods face limitations in key space and computational complexity.
  • Quantum image encryption offers enhanced security and efficiency.
  • Existing quantum encryption techniques require further development for practical applications.

Purpose of the Study:

  • To propose a novel double quantum image encryption approach.
  • To enhance the security and reduce the computational complexity of image encryption.
  • To achieve effective pixel confusion and diffusion for robust encryption.

Main Methods:

  • Utilizing the quantum Arnold transform (QAT) for pixel position scrambling.
  • Employing independent random qubit rotation in spatial and frequency domains.
  • Integrating the quantum Fourier transform (QFT) for frequency domain operations.

Main Results:

  • The proposed method achieves high levels of pixel confusion and diffusion.
  • A noise-like cipher image is generated, enhancing security.
  • Numerical simulations and theoretical analysis confirm the method's validity.

Conclusions:

  • The novel double quantum image encryption method demonstrates superior performance.
  • The approach offers significant advantages in security and computational complexity.
  • This work contributes to the advancement of secure quantum image processing.