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 |
CA2550560(A1) |
申请公布日期 |
2006.12.17 |
申请号 |
CA20062550560 |
申请日期 |
2006.06.14 |
申请人 |
KABUSHIKI KAISHA TOSHIBA |
发明人 |
KURIHARA, SHINICHI |
分类号 |
G06F21/00;G06Q50/00;G06Q50/10;H04L9/08;H04L9/32;H04N7/16 |
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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