发明授权
US08677152B2 Method and apparatus for encrypting media programs for later purchase and viewing
有权
用于加密媒体节目以供以后购买和查看的方法和装置
- 专利标题: Method and apparatus for encrypting media programs for later purchase and viewing
- 专利标题(中): 用于加密媒体节目以供以后购买和查看的方法和装置
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申请号: US12172901申请日: 2008-07-14
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公开(公告)号: US08677152B2公开(公告)日: 2014-03-18
- 发明人: Raynold M. Kahn , Gregory J. Gagnon , David D. Ha , Peter M. Klauss , Christopher P. Curren , Ronald P. Cocchi , Thomas H. James
- 申请人: Raynold M. Kahn , Gregory J. Gagnon , David D. Ha , Peter M. Klauss , Christopher P. Curren , Ronald P. Cocchi , Thomas H. James
- 申请人地址: US CA El Segundo
- 专利权人: The DIRECTV Group, Inc.
- 当前专利权人: The DIRECTV Group, Inc.
- 当前专利权人地址: US CA El Segundo
- 主分类号: H04L9/28
- IPC分类号: H04L9/28 ; H04L9/14
摘要:
A system and method for storing and retrieving program material for subsequent replay is disclosed. The method includes accepting a receiver ID associated with a receiver key stored in a memory of the receiver, determining a pairing key for encrypting communications between the conditional access module and the receiver, encrypting the pairing key with the receiver key, and transmitting a message comprising the encrypted pairing key to the receiver. The apparatus comprises a receiver for receiving a data stream transmitting a media program encrypted according to a media encryption key and an encrypted media encryption key and a conditional access module, communicatively coupleable with the receiver.
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