发明名称 |
Information processing apparatus, information processing method and program |
摘要 |
An information processing apparatus includes a data processing section for reproducing contents stored in a medium having a general purpose area in which encrypted contents and corresponding utilization controlling information are stored and a protected area including a plurality of blocks having access limitation set thereto and including a block having an encryption key for decrypting the encrypted contents stored therein. The data processing section acquires utilization controlling information corresponding to a content from the general purpose area, decides, based on the utilization controlling information, whether validity period information indicative of a content utilization permission period is to be acquired from the utilization controlling information or the encryption key storage block, acquires the validity period information based on a result of the decision and then compares the acquired validity period information and current date information to decide permission or inhibition of content reproduction. |
申请公布号 |
EP2571026(A3) |
申请公布日期 |
2013.09.11 |
申请号 |
EP20120181131 |
申请日期 |
2012.08.21 |
申请人 |
SONY CORPORATION |
发明人 |
KUNO, HIROSHI;HAYASHI, TAKAMICHI;KOBAYASHI, YOSHIYUKI;MURAMATSU, KATSUMI |
分类号 |
G11B20/00;G06K19/07;G06Q20/34;G11B20/10;H04N21/2347 |
主分类号 |
G11B20/00 |
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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