Cryptographic device and methods for defeating physical analysis
US7500112B1 · kind B1 · utility
21Cited by
9References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 27, 2000 |
| Grant date | Mar 3, 2009 |
| Priority date | — |
| Expiry date | Oct 17, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/125
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention relates to a data-processing device, particularly a chip card or smart card, and to a method of operating said device, with an integrated circuit comprising a central processing unit (CPU) (10) and one or more co-processors (12). The integrated circuit comprises a control unit (18, 30) which controls the processors, CPU (10) and co-processors (12) in such a way that, in the case of a cryptographic operation, at least two processors perform a cryptographic operation simultaneously and in parallel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.