Research on Inference Problems Based on Metadata
Qi Mao · 2004
Database security is a topic studied by many people. When dealing with this topic, the affect of inference channels is a problem that should not be avoidable. Inference channels bring menace to the information in database, and the widely used multilevel model cannot ensure the security of the whole system. Many of the inference problems are based on metadata of the database system. Those problems are partitioned into different classes and discussed according to their own characteristic in this paper. To eliminate inference channels,the security level of the attributes must be modified. A model (MTL) which could be used in this procedure is given.