Research Of B2 Level Security Model Base On LogicSQL

The information is now human society's important resources, and it must face various securities inevitably to threaten. While we rely on information technology more and more, the question of information security is also more and more prominent. The information security has already become the current research hot spot topic, and the information system core database security has especially become the most important of the information security. The database products of overseas several big database manufacturers have occupied domestic majority of market. The highest security level of overseas database product exported to China is C2 level. Development of domestic database product and the security level of domestic database appear extremely important in the situation. The database security problem has been studied in the domestic academic circles. Development of the domestic database system are almost carried in laboratories of university and development facility , and its market share are very small, and its security level are not high. Research and development of the LogicSQL security database has the all levels of government's vigorously support under this background, and has obtained fast development.With TCESC B2 level security standard as a founation , the LogicSQL database security model is researched . The database covert channel analyzes is carried on , and the discretionary access control and the mandatory access control are applied in all subjects and objects, and the security model is formal descripted.