| 摘要 |
PURPOSE: A method for sharing digital contents in theater of digital cinema contents of which DRM(Digital Rights Management) is applied, is provided to enable the screening device to share the KDM(Key Delivery Message) by setting the multiple screening device in the theater as the domain. CONSTITUTION: When the KDM transfer request is received from a contents server, the KDM or mastering server authenticates the general KDM(S100). When the general KDM is authenticated, the server cancels the encoding(S200). The server decides the domain right request(S300). The server adds the domain authority to the encoded KDM and inputs the domain certificate. The server issues the domain KDM of which the domain certificate is inputted to the screening server. |
