Efficient encoding of XML document for secure dissemination

The paper proposes an approach for efficient content dissemination to assure content integrity and confidentiality by exploiting the structural properties of an Extensible Markup Language (XML) document object model (DOM). Our approach proposes Enhanced Dewey Code (EDC), an encoding scheme for XML document and is based on the notion of enhanced level order numbers that supports the integrity and confidentiality requirements of an XML document and also facilitates efficient identification and distribution of selected content from an XML document. By using such notion, we develop a policy-based routing scheme for XML content dissemination which assures that the content is delivered to users according to the access control policies by preventing information leaks. Our XML content dissemination approach represents an efficient and secure mechanism for XML Documents to use in applications such as publish-subscribe systems. Our content dissemination approach provides different levels of confidentiality and integrity requirements in trusted and untrusted networks, which is common across enterprise networks and the web.