Process of security of an electronic unit with cryptoprocessor
US7747012B2 · kind B2 · utility
1Cited by
0References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 12, 2004 |
| Grant date | Jun 29, 2010 |
| Priority date | — |
| Expiry date | Nov 19, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/08
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The invention concerns a process for securing an electronic device incorporating a hardware component capable of autonomous implementation of calculation process f using one key K, the process involves calculating at least two new keys K′i such that at least one of said new keys is identical to key K, and one of said new keys is different from key K, and executing said calculation process f successively with each of said calculated keys K′i, using said hardware component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.