发明名称 |
Method and apparatus for providing information for decrypting content, and program executed on information processor |
摘要 |
The authentication capability of a portable terminal connected to a playback device is used to perform user authentication, thereby providing content with a sufficient reliability while only requiring a simple mechanism.
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申请公布号 |
US2002166047(A1) |
申请公布日期 |
2002.11.07 |
申请号 |
US20020134599 |
申请日期 |
2002.04.30 |
申请人 |
SONY CORPORATION |
发明人 |
KAWAMOTO YOUJI |
分类号 |
H04L9/32;(IPC1-7):H04L9/00 |
主分类号 |
H04L9/32 |
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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