Protection of a calculation performed by an integrated circuit
US9313027B2 · kind B2 · utility
1Cited by
17References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2006 |
| Grant date | Apr 12, 2016 |
| Priority date | — |
| Expiry date | Mar 2, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/12
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The calculation, by an electronic circuit, of a result of an integral number of applications of an internal composition law on elements of an abelian group, by successive iterations of different steps according to the even or odd character of a current coefficient of a polynomial representation of said integer, the degree of which determines the number of iterations, each iteration including whatever the even or odd character of the current coefficient, updating of at least one variable conditioning the final calculation result.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.