多源对象关系数据库细粒度强制访问控制机制实现方法

A MANDATORY ACCESS CONTROL IN OBJECT RELATIONAL DATABASE WITH MULTIPLE SOURCES

强制访问控制是保障数据库数据安全的一种基础访问控制模型,在目前的商用关系型数据库中已经非常成熟,但在对象关系数据库中仍没有很好实现。设计一种对象关系数据库环境下的强制访问控制模型,并基于开源对象关系数据库PostgreSQL予以实现,模型支持多数据源的细粒度访问授权,可以满足当前大数据应用对数据的安全访问需求。

The mandatory access control is a basic access control model to guarantee the data security in database,which is very mature in the existing commercial relational databases,however it is still not very well implemented in the object relational databases.This paper designs a mandatory access control model for the object relational database.Moreover,the proposed model has been implemented in PostgreSQL,which is an open source object relational database.The proposed mandatory access control model supports the fine-grained authorization over the data from multiple sources.It can satisfy the requirements of secure data access in the big data scenarios.