Design of a Multi-scroll Chaotic System and its Application to Image Encryption

Yulong BAI; Yang YANG; Lihong TANG

doi:10.11999/JEIT191002

Volume 43 Issue 2

Feb. 2021

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Article Navigation > Journal of Electronics & Information Technology > 2021 > 43(2): 436-444

Yulong BAI, Yang YANG, Lihong TANG. Design of a Multi-scroll Chaotic System and its Application to Image Encryption[J]. Journal of Electronics & Information Technology, 2021, 43(2): 436-444. doi: 10.11999/JEIT191002

Citation:

Yulong BAI, Yang YANG, Lihong TANG. Design of a Multi-scroll Chaotic System and its Application to Image Encryption[J]. Journal of Electronics & Information Technology, 2021, 43(2): 436-444. doi: 10.11999/JEIT191002

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Design of a Multi-scroll Chaotic System and its Application to Image Encryption

doi: 10.11999/JEIT191002

College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070, China

Funds: The National Natural Science Foundation of China (41861047, 41461078), The Northwest Normal University Young Teachers' Scientific Research Capability Upgrading Program (NWNU-LKQN-17-6)

Received Date: 2019-12-16
Rev Recd Date: 2020-08-29

Available Online: 2020-12-07

Publish Date: 2021-02-23

Abstract

Abstract

A chaotic system with three scrolls is proposed. The dynamics characteristics of the system, such as Lyapunov index, bifurcation diagram, Poincare cross section diagram, power spectrum and equilibrium stability, are studied by numerical simulation. The analysis results show that the system has good dynamics characteristics and rich topological attractors. In addition, an experimental simulation circuit is developed based on the circuit simulation software Multisim, which has a simple structure and is easy to realize in practice. Moreover, the simulation experiment is very consistent with the theoretical analysis conclusion, confirming that the proposed chaotic system circuit can be realized physically, thus verifying the chaos generation capacity of the chaotic system. Finally, a color image encryption algorithm is designed based on DNA algorithm, and the results show that the system has high security performance.Using the new system chaotic sequence to encrypt image, the encryption histogram and correlation between adjacent pixels are analyzed, results show that the new systems are very sensitive to image key and plaintext, key space is large, chaotic system applied to image encryption has higher safety performance.
- Image encryption,
- Multi-scrolls,
- Chaotic system,
- Dynamical behavior,
- Circuit implementation

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References(20)

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