发明名称 |
METHOD AND APPARATUS FOR SUPPORTING MULTIPLE BROADCASTERS INDEPENDENTLY USING A SINGLE CONDITIONAL ACCESS SYSTEM |
摘要 |
A method and apparatus for brokering the enablement of the communication of encrypted media programs from a plurality of independent broadcasters to a plurality of receivers is disclosed. The system makes use of a pairing key for each provided service, which is differently encrypted by a pairing server and by the broadcaster providing the service. The encrypted versions of the pairing key are decrypted in a first receiver module using information known to the pairing service but not the broadcaster and in a second receiver module using information known to the broadcaster. The pairing key is used to cryptographically bind the first and second receiver modules. |
申请公布号 |
EP1813107(A2) |
申请公布日期 |
2007.08.01 |
申请号 |
EP20050811812 |
申请日期 |
2005.10.18 |
申请人 |
SYPHERMEDIA INTERNATIONAL, INC. |
发明人 |
COCCHI, RONALD, P.;GAGNON, GREGORY, J.;FLAHARTY, DENNIS, R. |
分类号 |
H04N21/2543;H04N7/16;H04N7/167;H04N7/173;H04N21/258;H04N21/266;H04N21/418;H04N21/426;H04N21/4367;H04N21/472 |
主分类号 |
H04N21/2543 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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