H - Electricity – 04 – L
Patent
H - Electricity
04
L
H04L 9/08 (2006.01) H04L 9/32 (2006.01)
Patent
CA 2663241
[PROBLEMS TO BE SOLVED] It is an object to provide a technique for authenticating a communication partner by means of an electronic certificate including personal information. [MEANS FOR SOLVING THE PROBLEMS] When a client device receives a request of an electronic certificate from a server device, the client device reads out a client certificate including personal information and a server public key from a storing unit and encrypts the client certificate by using the server public key. Further, the client device sets a predetermined item in a basic region of the electronic certificate showing that the electronic certificate is temporary digital evidence and makes out a temporary electronic certificate by setting the encrypted client certificate in an expanded region of the electronic certificate. The client device then transmits the temporary electronic certificate to the server device.
Un objet de cette invention consiste à fournir une technique pour authentifier un partenaire de communication au moyen d'un certificat électronique incluant des informations personnelles. Lorsqu'un dispositif client reçoit une demande de certificat électronique d'un dispositif serveur, le dispositif client extrait un certificat client incluant des informations personnelles et une clé publique de serveur d'une unité de stockage et chiffre le certificat client en utilisant la clé publique de serveur. En outre, le dispositif client définit un article prédéterminé dans une région de base du certificat électronique montrant que le certificat électronique est une preuve numérique temporaire et établit un certificat numérique temporaire en définissant le certificat client chiffré dans une région expansée du certificat électronique. Le dispositif client transmet ensuite le certificat électronique temporaire au dispositif serveur.
Miyamoto Takashi
Okamoto Kohsuke
International Business Machines Corporation
Wang Peter
LandOfFree
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