Protection of a calculation against side-channel attacks
US9544130B2 · kind B2 · utility
4Cited by
2References
27Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 27, 2014 |
| Grant date | Jan 10, 2017 |
| Priority date | — |
| Expiry date | Oct 15, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/3066
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for protecting a ciphering algorithm executing looped operations on bits of a first quantity and on a first variable initialized by a second quantity, wherein, for each bit of the first quantity, a random number is added to the state of this bit to update a second variable maintained between two thresholds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.