一种基于二维Logistic映射的图像加密算法  

Image encryption algorithm based on Coupled Logistic chaotic map

作　　者：刘尚懿[1] 王丽君[1] 

机构地区：[1]鞍山科技大学计算机科学与工程学院,辽宁鞍山114044

出　　处：《鞍山科技大学学报》2006年第4期365-370,共6页Journal of Anshan University of Science and Technology

摘　　要：利用了混沌系统对初始条件敏感依赖性及混沌轨道的遍历性与非周期性,同时利用了二维映射的参数空间和相间比一维映射大的优点,构造了一种基于二维Logistic映射的加密算法,并将其应用在数字图像的加密上。通过对计算机模拟试验的结果进行分析证实,该加密方法具有较好的加密性能。A new block encryption algorithm was presented, which is based on the Coupled Logistic chaotic map using the sensitive dependence, ergodieity, nonperiodicity and also using the larger parameter space and the phase space. Then it was applied to the encryption of images. Conclusion from computer simulation results verifies that the encryption algorithm has better encryption characteristics.

关 键 词：二维Logistic混沌映射 图像 加密 

分 类 号：TP317.4[自动化与计算机技术—计算机软件与理论]