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:
Jun. 16, 2026
Filed:
Jun. 20, 2024
Nec Corporation, Tokyo, JP;
Haruna Fukuda, Tokyo, JP;
Toshiyuki Isshiki, Tokyo, JP;
NEC CORPORATION, Tokyo, JP;
Abstract
In a digital signature system, a first processing apparatus performs processing comprising: receiving a first parameter generated using a first signing key and first biometric information to store the first parameter in a storage; receiving a second parameter generated using a second signing key and second biometric information to calculate a key difference between the first signing key and the second signing key from the first parameter and the second parameter; and calculating a value corresponding to a difference between the first biometric information and the second biometric information using the first parameter, the second parameter, and the key difference to verify whether or not the value satisfies a predetermined specified condition.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile