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:
Sep. 09, 2025
Filed:
May. 26, 2021
Nec Corporation, Tokyo, JP;
Toshiyuki Isshiki, Tokyo, JP;
Hiroto Tamiya, Tokyo, JP;
NEC CORPORATION, Tokyo, JP;
Abstract
Provided is a registration information generation apparatus for generating registration information based on registration-side input information including one or both of elements corresponding to a first set and elements corresponding to a second set, the registration information generation apparatus being configured to generate intermediate information by performing distribution processing for performing secret-sharing for the elements corresponding to the first set in input information, and a duplication processing for duplicating the elements corresponding to the second set in input information, and generate the registration information by replacing a sort order of elements in the intermediate information using a replacement key.