发明名称 |
Method, system and program product for attaching a title key to encrypted content for synchronized transmission to a recipient |
摘要 |
A method and system for attaching a title key to encrypted content for synchronized transmission to, or storage by, a recipient is provided. Specifically, under the present invention, an elementary media stream is parceled into content units that each include a content packet and a header. The content packets are encrypted with one or more title keys. Once the content packets have been encrypted, the title keys are themselves encrypted with a key encrypting key. The encrypted title keys are then attached to the corresponding encrypted content packets for synchronized transmission to a recipient.
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申请公布号 |
US7356147(B2) |
申请公布日期 |
2008.04.08 |
申请号 |
US20020124873 |
申请日期 |
2002.04.18 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
FOSTER ERIC M.;LOTSPIECH JEFFREY B.;PESTONI FLORIAN;PLOUFFE, JR. WILFRED E.;SCHAFFA FRANK A. |
分类号 |
H04K1/00;H04L9/00;H04L9/08;H04L9/36;H04L29/06 |
主分类号 |
H04K1/00 |
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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