Invention Grant
- Patent Title: Communication apparatus, communication system, certificate transmission method, anomaly detection method and a program therefor
- Patent Title (中): 通信装置，通信系统，证书传输方法，异常检测方法及其程序
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Application No.: US12693911Application Date: 2010-01-26
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Publication No.: US08578466B2Publication Date: 2013-11-05
- Inventor: Tatsuya Imai
- Applicant: Tatsuya Imai
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company, Ltd.
- Current Assignee: Ricoh Company, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2003-201638 20030725; JP2003-201644 20030725; JP2004-198624 20040705; JP2004-198627 20040705
- Main IPC: H04L29/06
- IPC: H04L29/06
Abstract:
A communication apparatus has a communication part and authenticates a communication partner by using a digital certificate. The communication apparatus includes an authentication part carrying out authentication of the communication partner by using a common certificate. The common certificate is a digital certificate not including identification information of an apparatus. An individualized certificate transmission part acquires, in the case the authentication by the authentication part has been made successfully, an individualized certificate and transmits the individualized certificate to the communication partner. The individualized certificate is a digital certificate including identification information of the communication partner.
Public/Granted literature
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