XTRUST: A SEVERITY-AWARE TRUST-BASED ACCESS CONTROL FOR ENHANCING SECURITY LEVEL OF XML DATABASE FROM INSIDER THREATS

Abstract

The topic of security in XML databases is important as it includes protecting sensitive data
and providing a secure environment to users. To improve security and provide dynamic access
control for XML databases, we developed severity-aware trust-based access control for XML
databases. Severity aware trust-based access control for XML databases manages the access
policy depending on users' trustworthiness (trust values) and prevents unauthorized processes,
malicious transactions, and insider threats. Privileges are automatically modified and adjusted
over timedepending on user behaviour and query severity. In this paper, a severity-aware trustbased access control module for XML databases is evaluated in terms of security perspectives.
The experimental results illustrate the effect of the severity factor on the calculation of Trust
values compared to the existing work.