A Multi-Scroll System and Its Application for Image Encryption Based on Logistic Level Pulse

XU Changbiao; LI Jinlong; XU Haonan

doi:10.11999/JEIT211169

Volume 44 Issue 12

Dec. 2022

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XU Changbiao, LI Jinlong, XU Haonan. A Multi-Scroll System and Its Application for Image Encryption Based on Logistic Level Pulse[J]. Journal of Electronics & Information Technology, 2022, 44(12): 4328-4336. doi: 10.11999/JEIT211169

Citation:

XU Changbiao, LI Jinlong, XU Haonan. A Multi-Scroll System and Its Application for Image Encryption Based on Logistic Level Pulse[J]. Journal of Electronics & Information Technology, 2022, 44(12): 4328-4336. doi: 10.11999/JEIT211169

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A Multi-Scroll System and Its Application for Image Encryption Based on Logistic Level Pulse

doi: 10.11999/JEIT211169

School of Optoelectronic Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, China

Funds: The National Natural Science Foundation of China (62071077)

Received Date: 2021-10-26
Rev Recd Date: 2022-04-05

Available Online: 2022-04-22

Publish Date: 2022-12-16

Abstract

Abstract

The nonlinear functions introduced into the existing multi-scroll attractor chaotic systems are mostly step function, saturation function, multi-logic level pulse function and so on. Therefore, the system hardware complexity increases with the increase of the number of scrolls, which makes its hardware implementation more difficult. To solve this problem, a Logistic level pulse function is designed and a new chaotic system with multi-scroll based on the Lorenz system is constructed by the nonautonomous pulse control method. The system’s dynamic characteristics are analyzed and the system is implemented based on FPGA chip. Finally, the application of the system in image encryption is given. The analysis results show that the hardware complexity of the system designed in this paper is independent of the number of scrolls, so the FPGA circuit can produce different multi-scroll attractors only by changing the control parameters without the change of the RTL codes; Compared with the Lorenz system, the designed multi-scroll system has more sensitive parameters so as to have larger key space and resist brute-force attack more effectively when applied to image encryption.
- Chaotic System,
- Image encryption,
- Multi-scroll attractor,
- Logistic map,
- FPGA

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References(15)

References

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