一种用于松散耦合的分布式信息系统的身份认证协议

AN AUTHENTICATION PROTOCOL FOR LOOSELY COUPLED DISTRIBUTED INFORMATION SYSTEM

随着计算机网络和信息系统的飞速发展 ,在现有的异构的信息系统基础上共享信息的要求越来越迫切 .本文提出了构造松散耦合的分布式信息系统 (L oosely Coupled Distributed Information System,L CDIS)的方法来解决这个问题 .L CDIS中的一个关键问题就是其安全性 .本文首先提出了 L CDIS的概念 ,并对其进行了形式化的描述 .由于L CDIS具有自身的特点 ,因此不能直接采用现有的身份认证协议 .我们针对其特点 ,提出了一种专用的身份认证协议 .该协议已经成功地用于实际的松散耦合的分布式信息系统 -全国普通高校招生管理系统 .

The rapidly developing of both information system and computer network has presented an urgent need of sharing information across heterogeneous autonomous information system. In this paper we described a method to build a loosely coupled distributed information system to solve this problem. As a network application, one of the most important aspects is the security property. We presented the definition of such system first and a formalization description. As the difference between this system and other ones, we cannot adopt any known authentication protocol directly. So we also provided a special protocol to deal with this problem, which are applied in a real system National College and University Enrollment System.