Method of securely implementing a cryptography algorithm of the RSA type, and a corresponding component
US7860242B2 · kind B2 · utility
1Cited by
5References
15Claims
0Family size
Assignee
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Key dates
| Filing date | Feb 22, 2008 |
| Grant date | Dec 28, 2010 |
| Priority date | — |
| Expiry date | Nov 17, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/26
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for the secure application of a cryptographic algorithm of the RSA type in an electronic component obtains the value of a public exponent e from a given set of probable values, without a priori knowledge of that value. Having determined the value for the public exponent e, the application of countermeasures using the value of e, to block error attacks and side channel attacks, particularly of the DPA and SPA type, are carried out on the application of a private operation of the cryptographic algorithm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.