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:
Dec. 12, 1995
Filed:
Jan. 19, 1994
Hiroaki Kikuchi, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A user authenticating system includes a certification authority for issuing a certification to a user who desires to use a bulletin board system. The certification is obtained by enciphering original information including at least information identifying the user using a secret key. A computer is, provided in the bulletin board system, for authenticating the user based on the certification. The computer has a deciphering unit for deciphering the certification using a public key so as to obtain the original information and a determining knit for determining based on the original information obtained by the deciphering unit whether the user is a regular user. A result obtained by the determination unit, used to authenticate the user. A user support computer is provided in the bulletin board system for supplying, based on operations of the user, the certification issued by the certification authority to the computer for authenticating the user.