基于混沌映射的随机比特加密算法的设计与实现  

Design and Implementation of a Random Bit Shift Data Encryption Algorithm based on Chaos Map

作　　者：葛淑娟[1] 惠黎明[1] 

机构地区：[1]中国电子科技集团公司第二十七研究所,郑州450015

出　　处：《电光系统》2008年第3期46-49,共4页Electronic and Electro-optical Systems

摘　　要：针对基于一维混沌系统保密性不够高的缺点，提出了利用三维混沌系统进行加密的算法，有效地提高了图像加密的效率，并增强了图像的保密性。在此基础上，给出图像加密实例结果及其直方图分析，表明设计的加密算法具有高的安全性和有效性。Inconsideration that an one -dimensional system is not good enough in terms of secrecy performance. A data encryption algorithm using three - dimensional chaotic system is presented in the paper. By use of the algorithm, the encryption efficiency of image is increased and the secrecy performance on image is made better. An instance result of image encryption and its grayscale distribution is given. The results show that the algorithm is safer and more efficient than conventional algorithms.

关 键 词：混沌系统 图像加密 LORENZ映射 MATLAB 

分 类 号：TP317.4[自动化与计算机技术—计算机软件与理论]