A novel multi-scroll chaotic system and its application in image encryption
LIU Song1,2， WEI Yaping2， LIU Jingyi2， ZHANG Guoping1
1.College of Physical Science and Technology， Central China Normal University， Wuhan 430079， China；2.School of Advanced Materials and Mechatronic Engineering， Hubei University for Nationalities， Enshi， Hubei 445000， China
Abstract：In this paper， a novel five-dimensional hyperchaotic system is proposed， which can generate multi-scroll chaotic attractors. The dynamics of the chaotic system are studied numerically and theoretically， such as equilibrium point， dissipativity and Lyapunov exponent. To get the encrypted image， diffusion matrix and replacement based on the chaotic system，matrix are designed， which are used for substituting and diffusing the images.Security analyses including key sensitivity analysis， key space analysis， statistical analysis， information entropy analysis and anti-cutting analysis are performed in matlab. The experimental results demonstrate that the proposed image encryption scheme can resist various attacks and shows better security and effectiveness.
刘 嵩,韦亚萍,刘静漪,张国平. 一种新的多涡卷混沌模型在图像加密中的应用[J]. 华中师范大学学报(自然科学版), 2020, 54(1): 36-44.
LIU Song,WEI Yaping,LIU Jingyi,ZHANG Guoping. A novel multi-scroll chaotic system and its application in image encryption. journal1, 2020, 54(1): 36-44.
2020, Vol. 54 
