Process for challenge response authentication of a secure element (SE) in a micro controller unit
US11146409B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 19, 2018 |
| Grant date | Oct 12, 2021 |
| Priority date | — |
| Expiry date | Sep 1, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/0869
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Challenge-response authentication process of a secure element (SE) in a micro controller unit (MCU) devoid of a random number generator. The process includes the following steps conducted by the micro controller unit (MCU): receipt of at least one random datum (T, IDX) generated randomly by the secure element (SE), generation of a challenge datum (Z) specific to the micro controller unit (MCU) from the received random datum (T, IDX), sending of the generated challenge datum (Z) to the secure element (SE), receipt of a response datum (R) generated by the secure element (SE) as a function of the challenge datum (Z), and determination of an authentication result as a function of the received response datum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.