A New Memristor Chaotic System and Its Application in Image Encryption

Authors

Shuanghui Qu, 1. School of Physics, Shijiazhuang University, Shijiazhuang 050035, China; ;
Zhihong Yang, 2. School of electromechanical engineering, Shijiazhuang University, Shijiazhuang 050035, China;
Xuwei Rong, 2. School of electromechanical engineering, Shijiazhuang University, Shijiazhuang 050035, China;
Shuhua Wu, 1. School of Physics, Shijiazhuang University, Shijiazhuang 050035, China; ;

Abstract

Abstract: A new memristor chaotic system is designed by the method of bringing an ion migration memristor into the Chen system equation. The basic dynamic characteristics of the memristive system are investigated via bifurcation, Lyapunov exponent et al, which proves the validity of the new system. The new memristor system is applied in the image encryption to improve the security of the encryption key. A dual encryption algorithm is used, which makes every pixel value of plaintext influence all pixel values of ciphertext. Although there is no direct link between plaintext and ciphertext, the sensibility of ciphertext varying with plaintext can be improved. The result improves the application in message encryption based on complex system.

Recommended Citation

Qu, Shuanghui; Yang, Zhihong; Rong, Xuwei; and Wu, Shuhua (2019) "A New Memristor Chaotic System and Its Application in Image Encryption," Journal of System Simulation: Vol. 31: Iss. 5, Article 20.
DOI: 10.16182/j.issn1004731x.joss.17-0170
Available at: https://dc-china-simulation.researchcommons.org/journal/vol31/iss5/20

First Page

984

Revised Date

2017-07-21

DOI Link

https://doi.org/10.16182/j.issn1004731x.joss.17-0170

Last Page

991

CLC

TP391.9/O415.5

Recommended Citation

Qu Shuanghui, Yang Zhihong, Rong Xuwei, Wu Shuhua. A New Memristor Chaotic System and Its Application in Image Encryption[J]. Journal of System Simulation, 2019, 31(5): 984-991.

DOI

10.16182/j.issn1004731x.joss.17-0170