发明名称 |
System and method for assigning sequence keys to a media player to enable flexible traitor tracing |
摘要 |
A traitor tracing enabling system assigns sequence keys to a media player to enable better tracability with fewer actual variations in the content. The system comprises a technique for increasing a number of sequence keys, allowing a finer granularity in a traitor tracing process with little increase in sequence key storage or in bandwidth required to transmit sequence keys to a media player. The present system comprises a variation table which maps the sequence keys to the individual variations in the file, such that multiple sequence keys can be mapped to a single variation. |
申请公布号 |
US7711114(B2) |
申请公布日期 |
2010.05.04 |
申请号 |
US20050231174 |
申请日期 |
2005.09.19 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
LOTSPIECH JEFFREY BRUCE;JIN HONGXIA |
分类号 |
G06F21/00 |
主分类号 |
G06F21/00 |
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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