信息网格中资源的共享通过访问控制对合法用户和信息服务请求进行授权来实现,访问控制机制的采用受到信息网格的复合管理域特点的影响。本文阐述了信息网格访问控制的关键问题,分析了信息网格的多管理域特点,进一步提出了一个可以动态更新信息的复合式授权和查验机制,从而解决跨域访问带来的困难、简化管理操作。 The sharing of resources in information grid is realized through the authorization of authorized users and information service requests through access control. The adoption of access control mechanism is affected by the characteristics of compound management domain of information grid. This paper describes the key issues of information grid access control, analyzes the characteristics of information grid multi-management domain, and further proposes a composite authorization and checking mechanism that can dynamically update information to solve the problems caused by cross-domain access and simplify Manage operations.