METHOD, SYSTEM AND DEVICES FOR DIGITAL CONTENT PROTECTION

摘要

This invention relates to a system (and a corresponding method and devices) of digital content protection the system comprising a first digital content protection system ( 101 ) comprising a digital content item ( 106 ), a content access device ( 105 ) outside of the first digital content protection system ( 101 ), and at least one intermediary device ( 100 ) for providing said content access device ( 105 ) access to said digital content item ( 106 ) of said first digital content protection system ( 101 ), and where the intermediary device ( 100 ) is configured to generate secure access information (Encr(K;Inf_ID)), using a secret (K) known to the intermediary device ( 100 ), to enable the intermediary device ( 100 ) to recover the access information (Inf ID), and where the intermediary device ( 100 ) is further configured to use said access information (Inf ID) to enable said content access device ( 105 ) to access said digital content item ( 106 ) within said first digital content protection system ( 101 ).