发明名称 |
Certificate validity authentication method and apparatus |
摘要 |
<p>A time period which is expended since a request for the authentication of the validity of a public key certificate till the authentication of the validity, is shortened. A certificate validity authentication center VC periodically searches for and verifies paths which extend from a bridge certification authority CAbridge to individual terminal admitting certification authorities CA, and it registers the paths whose verifications have held good, in a path database in association with the respective terminal admitting certification authorities CA. Besides, in a case where the request for the authentication of the validity of a certificate has been made by an end entity EE, whether or not a path associated with the terminal admitting certification authority CA which admits the end entity, and a path associated with the terminal admitting certification authority CA which has issued the certificate being a subject for the request are registered in the path database is checked, and the subject certificate is judged valid only when both the paths are registered. <IMAGE></p> |
申请公布号 |
EP1185027(A2) |
申请公布日期 |
2002.03.06 |
申请号 |
EP20010120564 |
申请日期 |
2001.08.29 |
申请人 |
HITACHI, LTD. |
发明人 |
FUJISHIRO, TAKAHIRO;TEZUKA, SATORU;KUMAGAI, YOKO;MORIO, TOMOHARU;MIYAZAKI, YUTAKA |
分类号 |
G09C1/00;G06F15/00;H04L9/08;H04L9/32;(IPC1-7):H04L9/32 |
主分类号 |
G09C1/00 |
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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