发明名称 |
Data storing device for classified data |
摘要 |
A controller in a hard disk serving as a data storage device stores a license including a content key for decrypting encrypted content data E and others in a secure data storage portion. The license is managed in the secure data storage portion in accordance with a LBA, and the LBA for storing the license, which is being processed for transmission, is stored as a log in a log memory of the secure data storage portion. When a failure occurs during the transmission processing, the license, which was being processed for transmission, is specified based on the LBA stored in the log memory.
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申请公布号 |
US7716746(B2) |
申请公布日期 |
2010.05.11 |
申请号 |
US20040506505 |
申请日期 |
2004.09.03 |
申请人 |
SANYO ELECTRIC CO., LTD.;SHARP KABUSHIKI KAISHA;VICTOR COMPANY OF JAPAN;PIONEER CORPORATION;HITACHI, LTD.;FUJITSU LIMITED |
发明人 |
HORI YOSHIHIRO;OHNO RYOJI;OHISHI TAKEO;TOZAKI AKIHIRO;TADA KENICHIRO;HIRAI TATSUYA;TSURU MASAFUMI;HASEBE TAKAYUKI |
分类号 |
G06F11/30;G06F12/14;G06F3/06;G06F21/00;G06F21/24;G11B20/10;H04L9/08;H04L9/32 |
主分类号 |
G06F11/30 |
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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