发明名称 |
Content management method, content management program, and electronic device |
摘要 |
Data in a storage medium not using an encryption double key scheme is transferred to a storage medium using an encryption double key scheme. A title key Kt encrypting content data C in an SD audio card SDa is further encrypted by a user key Kua generated in a key generating unit 23 e, and is stored in a user data area 4 in an SD card SDq. The generated user key Kua is encrypted by a medium unique key Kmuq in the SD card SDq, and is stored in a protection area 3. |
申请公布号 |
US2007160209(A1) |
申请公布日期 |
2007.07.12 |
申请号 |
US20050571365 |
申请日期 |
2005.06.08 |
申请人 |
KABUSHIKI KAISHA TOSHIBA |
发明人 |
KASAHARA AKIHIRO;MURA AKIRA;SUU HIROSHI |
分类号 |
H04N7/167 |
主分类号 |
H04N7/167 |
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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