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A New Image Encryption Algorithm Based on Modified Optically Injected Semiconductor Laser Chaotic System
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DOI：10.1109/ACCESS.2021.3113734.png)
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Abstract
En 中文
Compared with general chaotic systems, laser chaotic systems have more complex dynamic behaviors and extremely high sensitivity to parameters and initial values. So far, there are few studies on the application of laser chaotic systems to image encryption. Therefore, this paper proposes a new image encryption scheme based on an optical injection semiconductor laser chaotic system. The encryption scheme mainly includes two processes of scrambling and diffusion. The scrambling process converts the pseudo-random sequences generated by the laser chaotic system into chaotic matrixes and scrambling each pixel through a random point scrambling algorithm. In the diffusion process, the chaotic sequences generated by the laser chaotic system are quantized into random numbers and applied to the improved gravitational model algorithm to achieve the effect of pixel diffusion. The experimental results and security analyses indicate that the proposed algorithm has good image encryption performance and can effectively resist various common attacks on image encryption systems.
Keywords:
Encryption
Chaotic communication
Semiconductor lasers
Laser modes
Security
Optical imaging
Mathematical model
Image encryption
laser chaotic system
random point scrambling
improved gravitation model
Journal
IF:
3.6
Papers:
9.8W
Citations:
29.4W
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