摘要： 描述了一种实现统一身份认证的方法，解决了同一用户登录不同Web 应用系统需要进行多次独立身份认证问题。Web 代理采用浏览器插件方式，截获用户第1 次登录某个Web 应用时的post 数据，并将其存入数据库，用户在以后登录这个Web 应用系统时自动提取数据库中post 数据，省去了用户手动进行身份认证的过程，实现了统一身份认证。

关键词: 统一身份认证；IE 插件；Web Service

Abstract: The paper describes an approach of unified identity authorization, solving the problem of separate identity authorization when a user logs in different Web application systems. It takes IE plug-in approach, captures user’s post data when first time logging in some Web application system and stores the data into database. When the user logs in this Web application system against, it automatically distills posted data from database, thus eliminates user’s manual identity authorization, and realizes unified identity authorization

Key words: Unified identity authorization; IE plug-in; Web Service