An architecture of multilayered DRM protection structure for multimedia
service and the method of forming the same are provided. The architecture
comprises a multilayered DRM encryption structure and a DRM decryption
structure. The inputted multimedia service is decomposed and encrypted
into an encrypted multimedia service stream through a multimedia service
decomposer and a multimedia DRM organizer. The encrypted stream is
decrypted by a DRM composer from top layer to bottom layer. A full or
partial multimedia service is then presented. For a multimedia service
application, this enhances the DRM protection by increasing the
complexity of multimedia encryption for a multimedia service application.
It also provides the variety for the multimedia service application via
different compositions of multimedia objects. The DRM protection
structure is embedded into each layer of multimedia services and objects
and can be set up different levels of DRM protection.