Method of counter-measuring against side-channel attacks
US8971526B2 · kind B2 · utility
4Cited by
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13Claims
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Key dates
| Filing date | Jul 12, 2012 |
| Grant date | Mar 3, 2015 |
| Priority date | — |
| Expiry date | Jul 12, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/08
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
According to the present invention there is provided a method of counter-measuring against side channel attacks, the method comprising executing a block-cipher algorithm to mask intermediate variables, wherein the block-cipher algorithm comprises one or more non-linear functions, characterized in that at least one of the non-linear functions is implemented using a match-in-place function.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.