SYSTEM AND METHOD FOR CONTENT PROTECTION

摘要

The invention provides a system for content protection comprising a media center (200) connectable to a mobile master memory unit (205) associated with an identifier. The media center comprises: a protection key, storage means (215) for storing files identified by respective file identifiers, a processing unit (210) comprising file encryption means for encrypting each file before storage in the storage means (215), using a title key computed from the protection key of the media center (200), and for encrypting said title key using the protection key of the master storage device (200) and the identifier of the master memory unit (205), the master storage device being further provided to write the encrypted title key in association with the corresponding file identifier to the master memory unit (205).