发明名称 NON-BLOCKING OF HEAD END INITIATED REVOCATION AND DELIVERY OF ENTITLEMENTS IN A NON-ADDRESSABLE DIGITAL MEDIA NETWORK
摘要 A system, apparatus, and method are directed towards managing entitlement/right revocation and delivery to be performed within a non-addressable media network. Such networks may include for example a client device behind a network address translation (NAT) device, employs non-addressable satellite components, or so forth. A server notifies clients that entitlements, revocations, or the like are available by sending a request for communications with the client. The client initiates a connection to receive the entitlements, or the like, and then disconnects from the server. If the client fails to initiate a connection, the server may continue to send a request for a connection, or even change encryption keys to the content to prevent access by the client. In one embodiment, failure to receive an acknowledgement response from the server of a connection with the client, or from the client, may result in invocation of a revocation failure action.
申请公布号 US2008294786(A1) 申请公布日期 2008.11.27
申请号 US20080125032 申请日期 2008.05.21
申请人 WIDEVINE TECHNOLOGIES, INC. 发明人 TINKER JEFFREY LEE;MACLEAN CHARLES DUNCAN;ALI HAMID SHAHEED;HIAR EDWARD CHARLES;RUTMAN MICHAEL;MORTEN GLENN A.
分类号 G06F15/173;H04L9/00 主分类号 G06F15/173
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