Method of securely implementing a cryptography algorithm of the RSA type, and a corresponding component
US7359508B2 · kind B2 · utility
2Cited by
4References
16Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 8, 2004 |
| Grant date | Apr 15, 2008 |
| Priority date | — |
| Expiry date | Jul 8, 2024 |
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.