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:
Jul. 23, 2019
Filed:
Aug. 23, 2017
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Go Yamamoto, Tokyo, JP;
Tetsutaro Kobayashi, Tokyo, JP;
NIPPON TELEGRAPH AND TELEPHONE CORPORATION, Tokyo, JP;
Abstract
A computing apparatus outputs τand τcorresponding to a ciphertext x, a capability providing apparatus uses τto correctly compute f(τ) with a probability greater than a certain probability and sets the result of the computation as z, uses τto correctly compute f(τ) with a probability greater than a certain probability and sets the result of the computation as z, the computing apparatus generates a computation result u=f(x)xfrom z, generates a computation result v=f(x)xfrom z, and outputs uvif the computation results u and v satisfy a particular relation, where G and H are groups, f(x) is a function for obtaining an element of the group G for x∈H, Xand Xare random variables having values in the group G, xis a realization of the random variable X, and xis a realization of the random variable X.