摘要
一次性口令系统是目前网上流行的简单用户认证方案,能够有效解决用户密码在网上明文传送的不安全性。分析了现有的几种一次性口令系统,指出服务端的不安全性、对S/KEY的小数攻击等问题,在此基础上提出并实现了双向认证一次性口令协议TAOTP(Two-way Authenticate One Time Password),采用单向函数,通过客户端和服务端实现的双向认证,解决了服务端存储用户口令的不安全性和小数攻击等问题。
One-time password systems are popular simple user-authentication schemes in Internet. It can effectively resolve the un-secure way of password transfer in plan-text in Internet. This paper discussed some one-time password system, point out the defects such as un-secure server, small integer attack on S/KEY system, and so on. Also in this paper, by using hash function and implementation of client and server＇s two-way authentication, a framework of two-way authenticate one-time password system was carried out. It can resolve problems such as un-secure server and small integer attack.
出处
《计算机应用研究》
CSCD
北大核心
2005年第9期128-130,共3页
Application Research of Computers
基金
湖南省自然科学基金资助项目(01JJY2115)
关键词
用户认证
一次性口令
小数攻击
双向认证
单向函数
Authentication
One-time Password System
Small Integer Attack
Two-way Authenticate
Hash Function
