Efficient Publication Method of XML data on Peer-to-Peer Environments

As XML is becoming a standard for information representation and exchange on the Web, the functionality enabling a secure and efficient publication of XML is necessarily demanded. Especially, these trends are more outstanding in distributed heterogeneous environment such as Peer-to-Peer(P2P) environments. Although some studies have tries to make efficient distribution with center-oriented administration approaches, it is difficult for them to adapt directly to P2P environments which have inherently the characteristics of dynamic participation. Our main idea is that using the authorization policy of access control, authentication verification conditions are evaluated not by terms of the predefined authentication policy, but by terms of the subject credential information involved in authorization policy, which make it possible to adapt the enormous incoming of subject to the network. We propose a novel publication method with authorization policy for efficient publication of XML data.