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 XMLdatabases,wedevelopedseverity-awaretrust-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 trust-based access control module for XML databases is evaluated in terms of security perspectives.Theexperimentalresultsillustratetheeffect of the severity factor on the calculation of Trust values compared to the existingwork