华中师范大学学报（自然科学版）2017，Vol.51Issue(4)：441-448,8.DOI:10.19603/j.cnki.1000-1190.2017.04.005
一种新型混沌图像加密算法
A novel chaotic image encryption algorithm
摘要
Abstract
In order to solve the shortcomings of the traditional chaotic encryption system due to the precision degradation problem and the small key space as well as poor security performance caused by the finite precision effect of the computer,another chaotic map is designed based on the topological conjugate based on Logistic chaos.Then,the initial values of quantum logistic chaotic maps are generated through the new chaos map so that the scrambling matrices are derived from them.After that,two diffusion matrices are generated by using two piecewise linear chaotic maps.The diffusion-scrambling-diffusion method is used to encrypt the image,which greatly reduces the finite precision and the encryption space is improved.Finally,the performance of the encryption system have tested by MATLAB.The test results show that the encryption algorithm can be applied to the real-time encryption occasion.关键词
图像加密/拓扑共轭/量子混沌/分段线性混沌/置乱Key words
image encryption/topological conjugation/quantum chaos/piecewise linear chaos permutation分类
信息技术与安全科学引用本文复制引用
黄胡晏,饶从军..一种新型混沌图像加密算法[J].华中师范大学学报（自然科学版）,2017,51(4):441-448,8.基金项目
国家自然科学基金项目(71671135). （71671135）
