多级安全数据库设计中的约束处理

Constraints Processing During Multilevel Secure Database Design

安全约束为多级安全数据库系统提供了一种有效的分类策略，可用来为基于时间、语境和内容的数据分派安全等级．本文讨论了数据库设计过程中的安全约束处理技术，并提出了处理基于关联的约束、简单约束和逻辑约束的算法．

Security constraints provide an effective classification policy for multilevel secure database system,they can be used to assign security levels to the data based on content,context,and time. This paper describes the techniques of constraints processing during database design,alogrithms for handling association constraints, simple constraints, logical constraints are put forward.