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.: US10896900Application Date: 2004-07-23
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Publication No.: US07694333B2Publication Date: 2010-04-06
- 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: G06F7/04
- IPC: G06F7/04 ; G06F15/16 ; G06F17/30 ; H04L29/06 ; H04L9/32
Abstract:
A communication apparatus has a communication part and authenticates a communication partner by using a digital certificate, wherein the communication apparatus includes an authentication part carrying out authentication of the communication partner by using a common certificate, the common certificate being a digital certificate not including identification information of an apparatus, and an individualized certificate transmission part acquiring, in the case the authentication by the authentication part has been made successfully, individualized certificate and transmitting the individualized certificate to said communication partner, the individualized certificate being a digital certificate including identification information of the communication partner.
Public/Granted literature
Information query
