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:
Mar. 14, 2023
Filed:
Dec. 13, 2018
Robert Bosch Gmbh, Stuttgart, DE;
Xinxin Fan, San Mateo, CA (US);
Qingji Zheng, Pittsburgh, PA (US);
Jorge Guajardo Merchan, Pittsburgh, PA (US);
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A method for implementing a secure multiparty inner product computation between two parties using an SPDZ protocol involves having a first party and a second party compute, for i=1, . . . , k, a vector (I)=(II) based on a vector (x={x, . . . , x}), and a vector (w={W, W}), respectively, where (I)=(XX) (III)=WW, N is the total number of elements in the vectors k=N/2. The vectors (I), and (III) are securely shared between the parties. The parties then jointly compute SPDZ protocol Add([w], [x]) and Add([w], [x]) to determine shares [w+x] and [w+x] respectively, and then compute, for i=1, . . . , k, inner product shares [d] by performing SPDZ protocol Mult([w+x], [w+x]). SPDZ protocol ([Add d], . . . , [d], -(IV), . . . , -(V), -(VI), -, (VII)) is then performed to determine the inner product.