As organizations increase their reliance on, possibly distributed, information systems for
daily business, they become more vulnerable to security breaches even as they gain …

As organizations depend on, possibly distributed, information systems for operational,
decisional and strategic activities, they are vulnerable to security breaches leading to data …

Access control is one of the fundamental services that any Data Management System should
provide. Its main goal is to protect data from unauthorized read and write operations. This is …

We propose a novel method of self-organizing formation. It is assumed that elements are not
connected to each other and they can move in continuous space. The objective is to arrange …

A secure concurrency control algorithms must be devoid of covert channels originating from
data conflicts between transactions, in addition to ensuring database integrity. Current …

Modern applications often operate on data in multiple administrative domains. In this
federated setting, participants may not fully trust each other. These distributed applications …

Majority of the research in multilevel secure database management systems (MLS/DBMS)
focuses primarily on centralized database systems. However, with the demand for higher …

With the development of Internet and Intranet, Web and distributed databases have been
used more and more widely. It is important to properly handle network and Web database …

This paper presents a novel criterion-based access control approach to deal with multilevel
database security. In this approach, authorization rules are transformed to security criteria …

Abstract Secure Nested Transactions are an adaptation of traditional nested transactions to
support the synergy of language-based security and multi-level database security. They …