Patent · US Active

Converting a boolean masked value to an arithmetically masked value for cryptographic operations

US10871947B2 · kind B2 · utility

3Cited by

1References

23Claims

0Family size

Assignee

Cryptography Research, Inc. · US

Inventors

Michael Hutter · Walnut Creek, US
Michael Tunstall · Newtonhill, GB

Key dates

Filing date	Mar 3, 2017
Grant date	Dec 22, 2020
Priority date	—
Expiry date	Nov 29, 2037

Classification

Technology area (CPC H)Electricity
CPC primaryH04L2209/046
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A first input share value, a second input share value, and a third input share value may be received. The first input share value may be converted to a summation or subtraction between an input value and a combination of the second input share value and the third input share value. A random number value may be generated and combined with the second input share value and the third input share value to generate a combined value. Furthermore, a first output share value may be generated based on a combination of the converted first input share value, the combined value, and additional random number values.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.