%0 Conference Paper %B EDBT Workshops %D 2004 %T XML-Based Revocation and Delegation in a Distributed Environment %A Stoupa, Konstantina %A Athena Vakali %A Li, Fang %A Tsoukalas, Ioannis %E Lindner, Wolfgang %E Mesiti, Marco %E Türker, Can %E Tzitzikas, Yannis %E Athena Vakali %X

The rapid increase on the circulation of data over the web has highlightedthe need for distributed storage of Internet-accessible information due tothe rapid increase on the circulation of data over the web. Thus, access controlmechanisms should also be distributed in order to protect them effectively. A recentidea in the access control theory is the delegation and revocation of rights,i.e. the passing over of one clients rights to the other and vice versa. Here, wepropose an XML-based distributed delegation module which can be integratedinto a distributed role-based access control mechanism protecting networks. Theidea of X.509v3 certificates is used for the transfer of authorization informationreferring to a client. The modules are XML-based and all of the associated datastructures are expressed through Document Type Definitions (DTDs).

%B EDBT Workshops %S Lecture Notes in Computer Science %I Springer %V 3268 %P 299-308 %@ 3-540-23305-9 %G eng