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Image encryption scheme based on thorp shuffle and pseudo dequeue
Shengtao Geng1, Danlei Guo1, Xuncai Zhang2
1School of Electrical and Information Engineering, Zhengzhou University of Light Industry, Zhengzhou, 450002, China.
Scientific Reports
|April 1, 2025
Summary
This study introduces a novel four-dimensional hyperchaotic image encryption scheme using Thorp shuffle and pseudo dequeue. The proposed method enhances image data transmission security with high efficiency and excellent anti-attack performance.
Area of Science:
- Cryptography
- Information Security
- Applied Mathematics
Background:
- Image data transmission security is critical.
- Existing encryption methods face challenges in efficiency and robustness.
- Hyperchaotic systems offer complex dynamics for secure encryption.
Purpose of the Study:
- To propose a novel four-dimensional hyperchaotic image encryption scheme.
- To enhance the security and efficiency of image data transmission.
- To evaluate the proposed algorithm's anti-attack capabilities.
Main Methods:
- Improved four-dimensional Chen chaotic system for hyperchaotic behavior.
- SHA-256 algorithm for initial key generation.
- Index scrambling, double-ended Thorp shuffle, and multiplane bit diffusion for encryption.
Main Results:
- Maximum Lyapunov exponent of the hyperchaotic system reaches 11.3.
- Cipher image information entropy achieves 7.9994.
- High performance in statistical, differential, and noise attack analyses.
Conclusions:
- The proposed algorithm offers high encryption efficiency and security.
- The scheme demonstrates excellent anti-attack performance.
- This method is suitable for secure image data transmission.
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