发明名称 |
Information provision system,provision information copying device,user terminal device and user management device |
摘要 |
A content encryption device generates encrypted content and an encrypted content copying device copies the encrypted content on an information storage medium. The storage medium is sold at a charge or distributed at no charge. A user gets the storage medium to connect or set it to or in a user terminal device, accesses to a user management device to receive permission by authentication information distributed together with the storage medium and presents a part or a whole of medium information to a content key distribution device. The distribution device makes a content key encryption device issue an encrypted content key on the basis of the presented information and distributes it to the terminal device. |
申请公布号 |
GB0822274(D0) |
申请公布日期 |
2009.01.14 |
申请号 |
GB20080022274 |
申请日期 |
2006.06.15 |
申请人 |
KABUSHIKI KAISHA TOSHIBA |
发明人 |
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分类号 |
G06Q50/00;G06Q50/10;H04L9/08;H04L9/32;H04N7/16 |
主分类号 |
G06Q50/00 |
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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