Restricting access to video resources and hypermedia documents in Adaptative Environment

Some related works solve the protection issue of adaptable documents by using crypting methods on data flows before sending them to the client's application. However, hypermedia documents that are concerned by adaptation are often computed on the flight in order to satisfy the specificities of client platform, and must then be adapted a posteriori. This paper intends to give a solution to the following issues: (i) protecting a document and its resources from third part. For this purpose, we propose an architecture based on a trusted intermediary wrapper. This wrapper is able to decrypt the document sent by the document server, but it is also able to adapt them in consideration to the client's profile; (ii) protecting the access to the resources against unauthorized person