Title :
Differential data protection for dynamic distributed applications
Author :
Widener, Patrick ; Schwan, Karsten ; Bustamante, Fabián E.
Author_Institution :
Coll. of Comput., Georgia Inst. of Technol., Atlanta, GA, USA
Abstract :
We present a mechanism for providing differential data protection to publish/subscribe distributed systems, such as those used in peer-to-peer computing, grid environments, and others. This mechanism, termed "security overlays", incorporates credential-based communication channel creation, subscription and extension. We describe a conceptual model of publish/subscribe services that is made concrete by our mechanism. We also present an application, active video streams, whose reimplementation using security overlays allows it to react to high-level security policies specified in XML without significant performance loss or the necessity for embedding policy-specific code into the application.
Keywords :
XML; authorisation; content management; middleware; XML; access control; active video streams; differential data protection; distributed systems; publish/subscribe services; security policies; Communication channels; Communication system security; Concrete; Data security; Peer to peer computing; Performance loss; Protection; Streaming media; Subscriptions; XML;
Conference_Titel :
Computer Security Applications Conference, 2003. Proceedings. 19th Annual
Print_ISBN :
0-7695-2041-3
DOI :
10.1109/CSAC.2003.1254344