Multilevel Secure Transaction Processing

Vijay Atluri

Information security is receiving a great deal of attention as computers increasingly process more and more sensitive information. A <em>multilevel secure database management system</em> (MLS DBMS) is designed to store, retrieve and process information in compliance with certain mandatory security requirements, essential for protecting sensitive information from unauthorized access, modification and abuse. Such systems are characterized by data objects labeled at different security levels and accessed by users cleared to those levels. Unless transaction processing modules for these systems are designed carefully, they can be exploited to leak sensitive information to unauthorized users. <br/> In recent years, considerable research has been devoted to the area of multilevel secure transactions that has impacted the design and development of trusted MLS DBMS products. <em>Multilevel...