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.

Date of Patent:
Dec. 12, 2017

Filed:

Jun. 30, 2014
Applicant:

Nippon Telegraph and Telephone Corporation, Chiyoda-ku, JP;

Inventors:

Tetsutaro Kobayashi, Musashino, JP;

Go Yamamoto, Musashino, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 17/11 (2006.01); G06F 17/18 (2006.01); H04L 9/30 (2006.01); H04L 9/08 (2006.01); H04L 9/00 (2006.01); G09C 1/00 (2006.01);
U.S. Cl.
CPC ...
G06F 17/11 (2013.01); G06F 17/18 (2013.01); H04L 9/00 (2013.01); H04L 9/0869 (2013.01); H04L 9/3073 (2013.01); G09C 1/00 (2013.01); H04L 2209/24 (2013.01);
Abstract

A first calculation unit is capable of calculating f(x)xand sets a calculation result of f(x)xto u, and a second calculation unit is capable of calculating f(x)x, and sets a calculation result of f(x)xto v. A final calculation unit outputs (uv)for d=a'a+b′b when the calculation result u and the calculation result v satisfy u=v. Here, G and H are groups, f is a function for mapping an element x of the group H to the group G, Xand Xare random variables values of which are in the group G, a realization of the random variable Xis x, a realization of the random variable Xis x, and a, b, a′, and b′ are integers.


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