The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 22, 2011
Filed:
Jun. 01, 2005
Nobuyuki Shigeeda, Kawasaki, JP;
Nobuyuki Shigeeda, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An encrypted communication system according to the present invention comprises an authentication server in which a user password and an encryption key of a server were registered, a client involved in utilization by a user, and a server providing a service. According to the encrypted communication system, shared credentials for the client and the server to conduct encrypted communication are generated separately by the authentication server and the client based on mutually shared information, a ticket is generated in which the credentials that were generated by the authentication server are encrypted with the encryption key by the authentication server, and the client encrypts information to be sent using the credentials generated by the client and attaches the ticket that was acquired from the authentication server to the encrypted information to send the encrypted information and the ticket to the server.