基于混沌伪随机序列发生器的图像加密方法  

A Method for Encrypting Image Based on Chaos Pseudo-random Series Generator

作　　者：于为中[1] 马红光[1] 王令欢[1] 

机构地区：[1]第二炮兵工程学院101教研室,西安710025

出　　处：《计算机工程》2006年第4期158-159,188,共3页Computer Engineering

基　　金：国家自然科学基金重点资助项目"信息防护关键技术研究"(69931040)

摘　　要：提出了一种基于两个参数随机变换的混沌系统的伪随机序列发生器,生成一个随机性好、周期长的密钥序列并给出了统计特性分析的严格的理论证明。用此序列进行图像加解密实验,结果分析表明,提出的算法能够得到令人满意的加密效果。This paper points out some existent problems in digital chaotic ciphers. A novel pseudo random series generator based on a couple of chaotic system is presented. A chaos key stream with good randomcity and long period is made out, and its statistic character is proved strictly. The key stream has been used to enerypt image, and it is proved that method works perfect.

关 键 词：混沌 图像加密 一维线性映射 伪随机序列发生器 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]