发明名称 |
Device key decryption apparatus, device key encryption apparatus, device key encryption/decryption apparatus, device key decryption method, device key encryption method, device key encryption/decryption method, and programs thereof |
摘要 |
There are provided, on a single LSI (114), a device inherent value (17) that is a predetermined constant value; a key generation means (18) for generating a key for encrypting a device key (11) that is the basis for generating a contents key, by using the device inherent value (17) and device inherent information (16) given to a device; and a device key encryption means (12) for encrypting the device key (11) using a key generated by the key generation means (18) to output an encrypted device key.
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申请公布号 |
US2004151312(A1) |
申请公布日期 |
2004.08.05 |
申请号 |
US20030742945 |
申请日期 |
2003.12.23 |
申请人 |
YANAGISAWA RYOGO |
发明人 |
YANAGISAWA RYOGO |
分类号 |
H04L9/08;H04L9/10;(IPC1-7):H04L9/00 |
主分类号 |
H04L9/08 |
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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