Authentication system and key management protocol for secure Internet protocol rights management architecture for

摘要

Digital rights management architecture for delivering content in a security state to the user that is authorized. This architecture includes (216) a user system for requesting content from a content provider (202) the content provider. The content provider generates a (202B) session rights object with a purchase option selected by the user. Then, KDC (204), supplied to the user system authorization data. The caching server (215) has been set up to compare the authorization data purchase options. If the purchase option is consistent with the authorization data, caching server (215) and transfers it to the (216) user system the requested content. The (215), for transmission over the secure state the content that has been encrypted, the requested content in order to use the real-time streaming and forwarding (216) the user system is encrypted caching server. Furthermore, in order to support the transfer of the requested content, the user system caching server (215) (216) exchanges (and authenticated) a control message that is encrypted. In this way, all interfaces between components, is protected by encryption and authentication.