发明名称 |
INFORMATION PROCESSING DEVICE, INFORMATION RECORDING MEDIUM MANUFACTURING DEVICE, INFORMATION RECORDING MEDIUM, METHOD, AND COMPUTER PROGRAM |
摘要 |
<p>To provide a configuration in which a unit classification number corresponding to a content playback path is set based on various units. A unit classification number defining a playback path of content including encrypted data having different variations generated by encrypting a segment portion which forms the content by using a plurality of segment keys and encrypted content generated by encrypting a non-segment portion by a unit key is set based on various units, such as a content management unit and an index. In a CPS unit key file storing key generating information concerning CPS units as content management units, settings of unit classification numbers are indicated. Based on the CPS unit key file, a unit classification number to which content to be played back belongs can be obtained.</p> |
申请公布号 |
EP1852803(B1) |
申请公布日期 |
2015.11.11 |
申请号 |
EP20060713841 |
申请日期 |
2006.02.16 |
申请人 |
SONY CORPORATION |
发明人 |
TAKASHIMA, YOSHIKAZU;OISHI, TATEO;MURAMATSU, KATSUMI;UEDA, KENJIRO;KATO, MOTOKI |
分类号 |
H04L9/08;G06F21/62;G11B20/00;G11B20/10;G11B27/10;H04L9/14;H04N5/765;H04N5/775;H04N5/85;H04N5/913;H04N5/93;H04N9/79;H04N9/804;H04N9/806;H04N9/82;H04N21/433;H04N21/4408;H04N21/4623;H04N21/4627;H04N21/8358;H04N21/845 |
主分类号 |
H04L9/08 |
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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