发明名称 |
Long-life digital certification for publishing long-life digital content or the like in content rights management system or the like |
摘要 |
A digital certificate is employed to produce a digital signature for a digital construct. In the digital certificate is set forth a certificate validity period defining for the digital certificate a time period during which the digital certificate is to be honored as valid for producing digital signatures, and a signature validity period defining for each digital signature produced based on the digital certificate a time period during which the digital signature is to be honored as valid.
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申请公布号 |
US7549051(B2) |
申请公布日期 |
2009.06.16 |
申请号 |
US20050077051 |
申请日期 |
2005.03.10 |
申请人 |
MICROSOFT CORPORATION |
发明人 |
DILLAWAY BLAIR BREWSTER;LAMACCHIA BRIAN;MANFERDELLI JOHN;PARAMASIVAM MUTHUKRISHNAN |
分类号 |
H04L9/00 |
主分类号 |
H04L9/00 |
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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