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Volume 15
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10.3390/sym15071398
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Article

A Novel Fractional-Order Memristive Chaotic Circuit with Coexisting Double-Layout Four-Scroll Attractors and Its Application in Visually Meaningful Image Encryption

by
Yuebo Wu
,
Duansong Wang
,
Tan Zhang
,
Jinzhong Zhang
and
Jian Zhou
*
School of Electrical and Opto-Electronic Engineering, West Anhui University, Lu’an 237012, China
*
Author to whom correspondence should be addressed.
Symmetry 2023, 15(7), 1398; https://doi.org/10.3390/sym15071398
Submission received: 14 May 2023 / Revised: 20 June 2023 / Accepted: 22 June 2023 / Published: 11 July 2023
(This article belongs to the Special Issue Discrete and Continuous Memristive Nonlinear Systems and Symmetry II)
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Abstract

This paper proposes a fractional-order chaotic system using a tri-stable locally active memristor. The characteristics of the memristor, dynamic mechanism of oscillation, and behaviors of the proposed system were analyzed, and then a visually meaningful image encryption scheme was designed based on the chaotic system, DNA encoding, and integer wavelet transform (IWT). Firstly, the mathematical model of the memristor was designed, which was nonvolatile, locally active, and tri-stable. Secondly, the stability, dynamic mechanism of oscillation, bifurcation behaviors, and complexity of the fractional-order memristive chaotic system were investigated and the conditions of stability were obtained. Thirdly, the largest Lyapunov exponent, bifurcation diagram, and complexity of the novel system were calculated and the coexisting bifurcation, coexisting attractors, spectral entropy, and so on are shown. Finally, a visually meaningful image encryption scheme based on the proposed system was designed, and its security was assessed by statistical analysis and different attacks. Numerical simulation demonstrated the effectiveness of the theoretical analysis and high security of the proposed image encryption scheme.
Keywords: mechanism of oscillation; dynamic behavior; fractional-order; visually meaningful cipher image; locally-active memristor mechanism of oscillation; dynamic behavior; fractional-order; visually meaningful cipher image; locally-active memristor

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MDPI and ACS Style

Wu, Y.; Wang, D.; Zhang, T.; Zhang, J.; Zhou, J. A Novel Fractional-Order Memristive Chaotic Circuit with Coexisting Double-Layout Four-Scroll Attractors and Its Application in Visually Meaningful Image Encryption. Symmetry 2023, 15, 1398. https://doi.org/10.3390/sym15071398

AMA Style

Wu Y, Wang D, Zhang T, Zhang J, Zhou J. A Novel Fractional-Order Memristive Chaotic Circuit with Coexisting Double-Layout Four-Scroll Attractors and Its Application in Visually Meaningful Image Encryption. Symmetry. 2023; 15(7):1398. https://doi.org/10.3390/sym15071398

Chicago/Turabian Style

Wu, Yuebo, Duansong Wang, Tan Zhang, Jinzhong Zhang, and Jian Zhou. 2023. "A Novel Fractional-Order Memristive Chaotic Circuit with Coexisting Double-Layout Four-Scroll Attractors and Its Application in Visually Meaningful Image Encryption" Symmetry 15, no. 7: 1398. https://doi.org/10.3390/sym15071398

APA Style

Wu, Y., Wang, D., Zhang, T., Zhang, J., & Zhou, J. (2023). A Novel Fractional-Order Memristive Chaotic Circuit with Coexisting Double-Layout Four-Scroll Attractors and Its Application in Visually Meaningful Image Encryption. Symmetry, 15(7), 1398. https://doi.org/10.3390/sym15071398

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