Specifying multimedia access control using RDF

The Synchronized Multimedia Integration Language (SMIL) [Aya01] is an W3C [W3C03] specification for authoring multimedia documents. Although SMIL has XML like syntactic constructs, unlike XML, SMIL compositions have an intended semantics stemming from intuitive notions of playing out many media streams relative to each other. Although there are many excellent models for XML access control [DdVPS00, DdVPS02, BCF01, BCFM00, SF02, KH00, GB02, KW02, GF03], they do not respect the intended meaning of multimedia constructs. To remedy this, we propose a model for controlling accesses to SMIL documents by decorating them with appropriate RDF statements that respect these semantics. Using this model, we show how such documents can be fetched by secure runtimes from secure multimedia servers.

• Type: Journal
• Year: 2004
• Where: CSSE
• Authors: Naren Kodali, Csilla Farkas, Duminda Wijesekera
• Keywords: CSSE 2004, Multimedia, SMIL Compositions, Software Engineering, Synchronized Multimedia Integration Language