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:
Feb. 20, 2024
Filed:
Dec. 12, 2018
Nec Corporation, Tokyo, JP;
Haruna Fukuda, Tokyo, JP;
Toshiyuki Isshiki, Tokyo, JP;
NEC CORPORATION, Tokyo, JP;
Abstract
Provided is an authentication system capable of preventing determination that authentication of a person to be authenticated succeeds even though determination as to whether matching information matches registration information is not performed when authentication using two factors is performed. A determination unitdetermines whether or not the matching information matches the registration information. A signature generation unitof a clientgenerates a signature based on the message by using a signature key. A signature determination unitdetermines whether or not the signature is a correct signature by using a first verification key, a message, and the signature. When it is determined that the matching information matches the registration information and it is determined that the signature is the correct signature, the authentication determination unitdetermines that the authentication succeeds.