Method for making safe an electronic cryptography assembly with a secret key
US8582774B2 · kind B2 · utility
0Cited by
12References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 4, 2003 |
| Grant date | Nov 12, 2013 |
| Priority date | — |
| Expiry date | Jun 10, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/046
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An aim of this invention is to eliminate the risks of aggression “DPA of the n order” attacks, for all n values, of cryptography electronic assemblies or systems with a secret or private key. The process according to this invention concerns a securing process for an electronic system using a cryptographic calculation procedure using a secret key. The process consists of masking intermediate results in input or output of at least one critical function for the said procedure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.