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A new image encryption scheme based on fractional-order hyperchaotic system and multiple image fusion
Xinyu Gao1, Jiawu Yu2, Santo Banerjee3
1School of Information Science and Engineering, Dalian Polytechnic University, Dalian, 116034, China.
Scientific Reports
|August 4, 2021
Summary
This study introduces a novel multi-image encryption method using a fractional-order hyperchaotic system. The proposed scheme efficiently encrypts multiple images, enhancing security and transmission efficiency.
Area of Science:
- Cryptography
- Applied Mathematics
- Computer Science
Background:
- Traditional image encryption methods face challenges in efficiency and security when handling multiple images.
- Hyperchaotic systems offer complex dynamics suitable for cryptographic applications.
Purpose of the Study:
- To design and evaluate a novel multi-image encryption scheme leveraging a fractional-order hyperchaotic system.
- To enhance the efficiency and security of encrypting and transmitting multiple images.
Main Methods:
- Analysis of chaotic characteristics using phase diagrams, Lyapunov exponents, and bifurcation diagrams.
- Fusion of multiple grayscale images into a single color image.
- Application of pixel confusion and diffusion operations guided by the fractional hyperchaotic system.
Main Results:
- The proposed scheme effectively encrypts multiple images into a secure cipher image.
- Experimental results demonstrate increased efficiency in image encryption and transmission.
- The scheme exhibits robust security performance.
Conclusions:
- The fractional-order hyperchaotic system provides a strong foundation for secure multi-image encryption.
- The developed algorithm offers a practical solution for efficient and secure multi-image data handling.
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