基于混沌序列密码的网络信息加密系统  

Research and Implementation of the Chaotic Stream Cipher-based Network Information Cryptography System

作　　者：翁贻方[1] 郑德玲[1] 王云雄 

机构地区：[1]北京科技大学信息工程学院 [2]德信智能手机技术(北京)有限公司,北京100016

出　　处：《微计算机信息》2007年第30期94-95,83,共3页Control & Automation

基　　金：北京市优秀人才专项经费资助项目(20041D0500309)

摘　　要：研究和实现了Java平台上基于连续混沌序列密码的网络信息加密系统。用Lorenz方程构成密钥流生成器。提出了一种新的密钥管理机制,充分利用混沌的参数敏感性,将种子密钥设计成由主密钥和随机密钥两部分组成,其中主密钥是Lorenz方程的参数,随机密钥则和用户登陆密码有关,使之达到类似"一次一密"的效果,增强了安全性。系统具有实用价值。The chaotic stream cipher-based network information cryptography system is researched and implemented with Java. The stream cipher is generated by Lorenz equations. A kind of new secret key management strategy is proposed. The seed secret key is designed to have a main key and a stochastic key. The main key is the parameters of Lorenz equations, while the stochastic key is related to users passwords. Making full use of the parameter＇s sensitivity of chaos in the seed secret key＇s design results in the in- creased safety. Its effect is similar to the “one key-one time”. The cryptography system is applicable.

关 键 词：混沌 序列密码 信息加密 种子密钥 JAVA 

分 类 号：TN918.8[电子电信—通信与信息系统]