基于UCON的空间访问控制模型的研究

虽然UCON模型包含了传统访问控制、信任管理、DRM三个问题领域，是下一代访问控制技术的发展方向，但是它不能解决空间数据库系统和基于移动用户位置的信息服务系统中空间动态授权。本文将空间授权规则引入到UCON模型中，提出了一个支持空间特性的面向使用的访问控制模型GEO—UCON，并给出了在空间环境下的授权规则，扩展了传统的UCON模型的空间安全描述能力。

A Study on Spatial Access Control Model Based on UCON and Its Implementation

Although the UCON model includes three different areas of traditional access control,trust management,DRM and it is the development direction of next generation of access control model,but it can not solve the problem of spatial database systems and the dynamic authorization of the system of moving user location based information service system.We introduce authorization rules into space UCON model,propose a support for the use of the space characteristics of the access control model GEO-UCON,and suggest th...