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:
Jan. 16, 2018
Filed:
Nov. 16, 2016
Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;
Yuka Jo, Kawasaki, JP;
FUJITSU LIMITED, Kawasaki, JP;
Abstract
A concealed data matching method for a computer including: registering a first concealed vector obtained by concealing registered data and key data based on a first random number and a linear combination of row vectors of a determination matrix; acquiring a second concealed vector; calculating a remainder vector indicating a remainder obtained by dividing the difference between the first concealed vector and the second concealed vector; determining the similarity between the registered data and the matching data based on the remainder vector; extracting the key data from the remainder vector if it is determined they are similar; calculating an inter-vector distance between the registered data and the matching data; and determining the similarity between the registered data and the matching data based on the magnitude of the inter-vector distance.