We introduce the notion of views as a mechanism for securing and providing access control in the context of XML. Research in XML has explored several efficient querying mechanism...
Current day database applications, with large numbers of users, require fine-grained access control mechanisms, at the level of individual tuples, not just entire relations/views,...
Shariq Rizvi, Alberto O. Mendelzon, S. Sudarshan, ...
At present, most of the state-of-the-art solutions for XML access controls are either (1) document-level access control techniques that are too limited to support fine-grained sec...
—We propose an access control model that extends RBAC (Role-Based Access Control) to take time and location into account, and use term rewriting systems to specify access control...
Many existing access controls use node filtering or querying rewriting techniques. These techniques require rather time-consuming processes such as parsing, labeling, pruning and/...