An Image Encryption Approach Using a Shuffling Map  

作　　者：XIAO Yong-Liang XIA Li-Min 

机构地区：[1]School of Information Science and Engineering, Central South University, Changsha 410083, China [2]Department of Information Management, Hunan College of Finance and Economics, Changsha 410205, China

出　　处：《Communications in Theoretical Physics》2009年第11期876-880,共5页理论物理通讯（英文版）

基　　金：Supported by Research Fond for the Doctoral of Higher Education of China,the Hunan Natural Science Foundation under Grant No.05JJ30121;the Scientific Research Fund of Hunan Provincial Education Department under Grant No.08B011;Educational Research Fund of Hunan Provincial Education Department under Grant No.09C013

摘　　要：A new image encryption approach is proposed.First,a sort transformation based on nonlinear chaoticalgorithm is used to shuffle the positions of image pixels.Then the states of hyper-chaos are used to change the greyvalues of the shuffled image according to the changed chaotic values of the same position between the above nonlinearchaotic sequence and the sorted chaotic sequence.The experimental results demonstrate that the image encryptionscheme based on a shuffling map shows advantages of large key space and high-level security.Compared with someencryption algorithms,the suggested encryption scheme is more secure.

关 键 词：IMAGE ENCRYPTION hyper-chaotic SHUFFLING SORT 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术] TP309[自动化与计算机技术—计算机科学与技术]