Research On Security Enhanced Model Based Database System

With the development of information industry in our country, database is more and more widely used. At the same time, because of the complex network environment, the database data is more and more threatened by attack. Thus, the research of database security technology has been an important branch in the field of computer technology.At present, there are two branches in the research of database security technology, which are secure database management system and enhancive database security system. According to the view of enhancive database security system, this paper takes the typical TCSEC model as reference. An agent system is built between database client and database server for secure communication, SQL parsing and access controlling. This paper addresses problems of four fields:(1) For the security requirement of database, a security enhanced model on database system is designed according to the TCSEC. The system is composed of client interface and secure database agent.(3) A method of system implement is designed. The Client interface is implemented by the standard ODBC criterion. And the security of...