Imbalanced montgomery ladder
US10305678B2 · kind B2 · utility
0Cited by
1References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 29, 2015 |
| Grant date | May 28, 2019 |
| Priority date | — |
| Expiry date | Oct 12, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/3249
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The invention relates to a method for securing an electronic device (SC) against attacks via covert channels when the electronic device (SC) implements a Montgomery ladder for calculating the element A⊥A⊥. . . ⊥A where A appears k times. A designates an element of an Abelian group with a law ⊥, and k is a natural number. The method comprises a modified implementation of the Montgomery ladder. The invention also relates to a device (SC), a computer program and a storage medium arranged so as to implement such a method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.