Majority of the research in multilevel secure database management systems (MLS/DBMS) focuses primarily on centralized database systems. However, with the demand for higher performance and higher availability, database systems have moved from centralized to distributed architectures, and the research in multilevel secure distributed database management systems (MLS/DDBMS) is gaining more and mor...

By using database security metrics to evaluate how risky the current database environment is and visually displaying the metric results on graphs, database security visualization and assessment method assists the administrators in holding a panoramic view of security over the database system as well as the detailed activity of each DBMS in the system. The present trend shows that it is obviousl...

When deploying database-centric web applications, administrators should pay special attention to database security requirements. Acknowledging this, Database Management Systems (DBMS) implement several security mechanisms that help Database Administrators (DBAs) making their installations secure. However, different software products offer different sets of mechanisms, making the task of selecti...

The security of database depends on a set of systems, roles, procedures, and processes that protect the entire database from unintended activities. Unintended activities can be categorized as authenticated misuse, malicious attacks or inadvertent mistakes made by authorized users. If any intruder succeeds in attacking the system network, the database security will be the last line of defense in...

This paper describes security issues for federated database management systems set up for managing distributed, heterogeneous and autonomous multilevel databases. It builds on our previous work in multilevel secure distributed database management systems and on the results of others’ work in federated database systems. In particular, we define a multilevel secure federated database system and d...

Addressing security demands under fixed budgets and deadline constraints are becoming extremely challenging, time consuming and resource intensive. Moreover, securing the distributed database in compliance with several security guidelines makes the system more complex. Mission critical systems, military, government and financial institutions have been under tremendous pressure to secure their d...

Information is the most valuable asset for organizations. One of the goals of organizations is to share their data and at the same time to enforce their policies. Web database is a combined production with database technology and Web technology. Web database is placed on the Internet, there are many security problems. The secrecy and the integrity are two important demands of security system. W...

It needs further study to find out whether this way of enforcing the requirements provides the same level of flexibility in specifying the requirements and reduced system overhead compared with the current method of rule enforcement. George and Haritsa studied the problem of combining real-time and security requirements [4]. They examined real-time concurrency control protocols to identify the ...

Real-time database systems can have security constraints in addition to timing constraints. Such real-time systems are typically contained in environments that exhibit hierarchical propagation of information, where mandatory access control for security is required. Conventional multi-level secure database models that implement mandatory access control are inadequate for time-critical applicatio...