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:
Aug. 04, 2026
Filed:
Jan. 20, 2020
Applicant:
Ntt, Inc., Tokyo, JP;
Inventor:
Dai Ikarashi, Musashino, JP;
Assignee:
NTT, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 7/72 (2006.01); H04L 9/10 (2006.01);
U.S. Cl.
CPC ...
G06F 7/72 (2013.01); H04L 9/10 (2013.01);
Abstract
A secure selective product computation system () has conditions [c], . . . , [c] and a binary table including m, m, . . . , m, and mas inputs, and outputs a total product [A] of multipliers selected according to the conditions. A condition integrator () calculates share values [cc]. A table convertor () generates a 4-value table including m', m′, m′, and m′A public value multiplier () calculates [ai]:=[cc](m+m−m−m)+[c](m−m)+[c](m−m)+m. A real number multiplier () calculates a value [A] obtained by multiplying all [a]. A selective multiplier () multiplies [A] by a multiplier selected from multipliers mand maccording to cwhen n is an odd number.