http://www.gissky.net- GIS空间站

根据OSD-2标准,提出一种安全机制来保证基于对象存储的分布式GIS空间数据的安全。在本安全机制中,采用的安全模型是基于信任状的访问控制系统,主要由OSD设备、安全管理器、策略/存储管理器和GIS服务器组成。该安全机制主要包含3个协议:GIS服务器-安全管理器协议、安全管理器-OSD设备协议和GIS服务器-OSD设备协议。命令的传输和数据的访问都要进行认证。这3个协议有效预防了各种网络攻击手段的攻击,保证了分布式GIS空间数据的安全共享。

Massive Spatial data is the very core of current GIS and generally is distributed at different places.A new generation storage model for distributed GIS spatial data based on Object-Based Storage(OBS) has been constructed,which gives an integrated solution to both offer high-performance storage services and secure data sharing.In this model,GIS server,metadata server and storage device are separated,so it is very important to construct a security mechanism for securing distributed GIS