地理空间数据访问控制威胁模型及应对策略

针对由于缺少对地理空间数据访问控制安全威胁因素的详细分析使得现有的地理空间访问控制模型不够完善的问题,该文提出了地理空间数据访问控制安全威胁模型——STALE模型。该模型结合空间关系、多尺度、属性等地理空间数据特征,详细描述了地理空间数据文件与数据库在访问控制中存在的安全威胁。在此基础上,针对模型中各类威胁因素,提出了应对策略,并进行了实验验证,证明了STALE模型的实用性。

A threat model and its coping strategies for geospatial data access control

Aiming at the problem that the existing geospatial data access control models are not perfect because of negligence of analysis of the security threat factors for geospatial data access control,a threat model of geospatial data access control model named STALE was proposed.This model combines geospatial data characteristics such as spatial relations,multi-scale and attribute to analyse the threat factor of access control for geospatial data file and database.Then,some trategies were put forward to cope with the threat factor of STALE model and the choices were given for geospatial data file and database access control respectively.Finally,an access control system was implemented by the technology of middleware technology,which proved the validity of STALE model.