摘要
1 引言
由于混沌信号具有高度的类随机特性和不可预测性,因此近年来混沌理论及其在保密通信、信息安全中的应用研究日益得到人们的广泛重视.
Recently,two essential defects and other weaknesses of the chaotic encryption system in [6] have been given in [8] and an improved encryption scheme is proposed to obtain higher security [8]. Their improved scheme is immune to the four cryptanalytic attacks employed by [7].Taking into account conventional cryptography theory,we present an improved multistage chaotic encrption system based on similar thought. Computer simulation illustrate that the system proposed in this paper has some characters such as higher security as well as imoplementation fast,etc.
出处
《计算机科学》
CSCD
北大核心
2002年第9期137-139,145,共4页
Computer Science
基金
重庆市科技计划项目
