Data Hiding and Security for XML Database: A TRBAC-Based Approach

摘要

In order to cope with varying protection granularity levels of XML (extensible Markup Language) documents, we propose a TXAC (Two-level XML. Access Control) framework, in which an extended TRBAC ( Temporal Role-Based Access Control) approach is proposed to deal with the dynamic XML data With different system components, LXAC algorithm evaluates access requests efficiently by appropriate access control policy in dynamic web environment. The method is a flexible and powerful security system offering amulti-level access control solution.