Digital electronic component which is protected against electrical-type analyses
US7352861B2 · kind B2 · utility
0Cited by
2References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 11, 2002 |
| Grant date | Apr 1, 2008 |
| Priority date | — |
| Expiry date | Feb 4, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K7/0008
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
This invention relates to a digital electronic component which is protected against electrical- and/or electromagnetic-type analyse). The inventive component comprises: a synchronous element (10) which is controlled by a clock (H); means (11, 12) of generating said clock (H), the frequency of which varies randomly between a minimum value and a maximum value for at least a given period of time; and means (13) of controlling the random nature of the frequency change of said clock (H).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.