Method and device for protecting a memory against attacks by error injection
US7788506B2 · kind B2 · utility
6Cited by
7References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 7, 2006 |
| Grant date | Aug 31, 2010 |
| Priority date | — |
| Expiry date | Jun 30, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/64
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method secures a memory in which individually read-accessible binary words are saved. The method includes defining a memory zone covering a plurality of words, calculating a cumulative signature according to all of the words in the memory zone, and storing the cumulative signature as an expected signature of the memory zone to check the integrity of data read in the memory. The method can be applied to the securing of smart cards.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.