Based on Dual Chaos Mapping Image Encryption Algorithm
Xiaojun Li · Computers & Security · 2010
An image encryption algorithm based on dual chaotic system is proposed which using logistic mapping and lorenz system.Firstly,the original image pixel are scrambled using logistic mapping to change their location.Then,the lorenz system is used to encrypt the image again after the first encryption by logistic mapping in order to modify the pixel value.At last,the image is encrypted twice.The simulation shows that the algorthim which provides high encryption efficiency is faster in encryption and has larger keys number.