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:
Mar. 02, 2021

Filed:

Jul. 10, 2015
Applicant:

Nec Laboratories Europe Gmbh, Heidelberg, DE;

Inventors:

Sebastian Gajek, Berlin, DE;

Francesco Alesiani, Heidelberg, DE;

Assignee:

NEC CORPORATION, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 21/57 (2013.01); H04L 9/32 (2006.01); H04L 9/30 (2006.01);
U.S. Cl.
CPC ...
G06F 21/57 (2013.01); H04L 9/3026 (2013.01); H04L 9/3218 (2013.01); G06F 2221/034 (2013.01);
Abstract

A method for reliable computation of a program P includes generating, by a verifier, a public verification key vkp and a public evaluation key (ekp), both on a basis of the program P, providing, by the verifier, a number N at random and sending the number N to the at least one provider, producing, by the at least one provider, at least one output Si concatenated with N and producing a signature Σi over a corresponding input into the at least one provider and/or corresponding data within the at least one provider, both the input and/or the data signed under a secret key ski, so that a pair of output and signature (Si, Σi) is transmitted to the computing unit. The verifier verifies the proof πy using the public verification key vkp and rejects y, if the proof verification fails.


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