【摘要】 对象关系型数据库安全访问控制是数据库安全研究的焦点之一。本文以自主开发的空间数据库管理系统VISTA为例,从安全规则、安全属性、强制访问控制三个角度详细讨论了VISTA的MAC设计方法,定义了形式化的安全规则,给出了算法流程和相应的安全信息数据结构。该设计方案也适用于其他相似的对象关系型数据库系统。更多还原

【Abstract】 The security access control for object relational database is one of the challenges in database security domain. Taking the Spatial Database Management System (SDBMS)—VISTA,which is developed independently by ourselves, for an example,this paper particularly discusses the design of Mandatory Access Control (MAC) from safety rules, safety properties and MAC designing,defines the formalized safety rules,and presents the procedure of algorithm and corresponding data structure of the safe information.This scheme is also applicable to other similar object relational da- tabase management systems (ORDBMS).更多还原