Method for protecting an electronic system with modular exponentiation-based cryptography against attacks by physical analysis
US6973190B1 · kind B1 · utility
8Cited by
9References
7Claims
0Family size
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Key dates
| Filing date | Oct 26, 2000 |
| Grant date | Dec 6, 2005 |
| Priority date | — |
| Expiry date | Jun 8, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2207/7242
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The invention concerns a method for protecting an electronic system implementing a cryptographic calculation process involving a modular exponentiation of a quantity (x), said modular exponentiation using a secret exponent (d), characterized in that said secret exponent is broken down into a plurality of k unpredictable values (d1, d2, . . . , dk), the sum of which is equal to said secret exponent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.