Method and apparatus for detection of a fault attack
US8688995B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 10, 2010 |
| Grant date | Apr 1, 2014 |
| Priority date | — |
| Expiry date | Apr 14, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/77
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The invention concerns a method of detecting a fault attack including providing a plurality of blinding values; generating a first set of data elements including a first group of data elements and at least one additional data element generated by performing the exclusive OR between at least one data element in the first group and at least one of the blinding values; generating a second set of data elements corresponding to the exclusive OR between each data element of the first set and a selected one of the plurality of blinding values; generating a first signature by performing a commutative operation between each of the data elements of the first set; generating a second signature by performing the commutative operation between each of the data elements of the second set; and comparing the first and second signatures to detect a fault attack.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.