Protected encryption method and associated component
US8306218B2 · kind B2 · utility
1Cited by
7References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 6, 2002 |
| Grant date | Nov 6, 2012 |
| Priority date | — |
| Expiry date | Nov 22, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/24
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The protected method of cryptographic computation includes N computation rounds successively performed to produce an output data from an input data and a private key. The method also includes a first masking stage to mask the input data, so that each intermediate data used or produced by a computation round is masked, and a second masking stage to mask data manipulated inside each computation round.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.