Towards the design of a secure data/knowledge 11 base management system

摘要

This paper describes the notion of Multilevel Secure Database Management System (MLS/DBMS) and the difficulties encountered in designing such a system. It then states a security policy for an MLS/DBMS and describes a design for query and update operation. Finally, the notion of a Multilevel Secure Knowledge Base Management System (MLS/KBMS) and a design for query operation in an MLS/KBMS is discussed.