Method of executing an algorithm for protecting an electronic device by affine masking and associated device
US8577025B2 · kind B2 · utility
4Cited by
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15Claims
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Key dates
| Filing date | Sep 28, 2010 |
| Grant date | Nov 5, 2013 |
| Priority date | — |
| Expiry date | Dec 23, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/04
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method of executing an algorithm includes protecting an electronic device by affine masking. The electronic device executes operations on secret variables x, the secret variables x being binary vectors of a given size N other than zero. The method further includes replacing the secret variables x using an affine masking operation, by the following affine function: m(x)=R.x+r, where R is a random invertible binary matrix with N rows and N columns and r is a random binary vector of size N.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.