地理空间信息网格安全问题研究

计算机网络是地理空间信息网格的载体，二者之间有着密切的联系。其关联性主要表现在互连互通、基于协议、交互接口和虚拟组织几个方面。因此，计算机网络遇到的安全威胁，地理空间信息网格也同样会遇到。此外，地理空间信息网格还要面对自身特征带来的诸如攻击核心设施，导致整体瘫痪，或破坏局部计算等各种安全威胁。针对这些问题，基于用户、通信网络、应用程序、网格资源四个环节，研究设计了地理空间信息网格安全体系结构，并论述了各模块功能和相互之间的关系，以及整体协同运行程序。

Studying the security of geospatial information grid

The computer network is a carrier of the geospatial information grid,and there is close relation between them.Their relationship mainly consists in interconnection and intercommunication,basing on protocol,mutual interface and virtual organization etc.So computer network faces the security threats as well as the geospatial information grid.In addition,the geospatial information grid also faces other security threats,which are brought by own characteristics,such as attacking core device,causing entire paralysis and destructing local computation and so on.Aiming at these problems,based on the four aspects of user,communication network,application program and grid resources,this paper researches and designs security architechture of geospatial information grid,discusses the functions of modules and relationship each other,and the cooperation programs.