Converting a boolean masked value to an arithmetically masked value for cryptographic operations
US11620109B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Dec 16, 2020 |
| Grant date | Apr 4, 2023 |
| Priority date | — |
| Expiry date | May 25, 2041 |
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.