空间数据访问控制研究

空间数据安全,尤其是访问控制在GIS应用(特别是网络应用)中已经成为不可或缺的功能部件。该文主要讨论设计和实现空间数据访问控制功能所涉及的基本问题,包括空间数据访问控制分类、空间数据访问控制的要求、空间数据访问控制模型、授权规则的存储结构和管理方式、授权规则与访问请求的匹配决策算法以及空间数据访问控制的实现策略等。提出一种空间数据访问控制的参考框架,定义了各组件的功能,并解释访问控制功能的实现流程。

Study on Access Control for Spatial Data

Spatial data security,especially access control,has become an indispensable function component in the practical application of GIS,especially in network environment.This paper mainly discusses several fundamental issues concerning the design and implementation of access control mechanism for spatial data,including the categories,requirements,authorization models,storage structures and management methods of authorization rules,matching and decision algorithm between authorization rule and access request,and its implementation policies etc.Finally,based on the content above,a reference framework of spatial data access control is proposed and its procedures are explained.