发明名称 |
Method of nullifying digital certificate, apparatus for nullifying digital certificate, and system, program, and recoring medium for nullifying digital certificate |
摘要 |
A method of nullifying digital certificates for nullifying, by means of a communications apparatus, a digital certificate for use by a communications counterpart of the communications apparatus in authenticating includes the step of causing the communications apparatus to transfer to the communications counterpart, when determining based on a normal certificate being a valid digital certificate received from the communications counterpart or information received via a communications path based on the normal certificate that the normal certificate is to be nullified, a certificate for nullifying being a digital certificate for nullifying.
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申请公布号 |
US7634654(B2) |
申请公布日期 |
2009.12.15 |
申请号 |
US20050030465 |
申请日期 |
2005.01.07 |
申请人 |
RICOH COMPANY, LTD. |
发明人 |
KAKII HIROSHI |
分类号 |
G06F21/00;G09C1/00;H04L9/00;H04L9/32 |
主分类号 |
G06F21/00 |
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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