信任管理中间件研究与设计

Research and Design of Trust Management Middleware

在访问控制领域,代理(delegation)对于提高授权管理活动的灵活性和伸缩性具有重要意义。如何在中间件中提供代理机制一直是研究热点和难点。本文将信任管理思想引入中间件框架中,提出一种通用信任管理中间件体系结构,在此基础上基于分布计算环境StarBus设计实现了信任管理中间件Star-TMM。同其他典型中间件平台相比,Star-TMM能够有效地支持授权代理和能力代理两种重要代理机制。

In the field of access control,delegation is important to improve the flexibility and scalability of authorization management activities in distributed systems. How to provide delegation mechanism in middleware is a hot but difficult problem. This paper introduces the idea of trust management into the framework of middleware,proposing a generic architecture of trust management middleware. According to this architecture,we develop a trust management middleware named as Star-TMM based on StarBus,a distributed computing environment. Compared with other classic middleware ,Star-TMM can provide two important delegation mechanisms ,which are called delegation of authority and delegation of capability.