Method for updating software of a control device of a vehicle
US10423401B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 26, 2017 |
| Grant date | Sep 24, 2019 |
| Priority date | — |
| Expiry date | Oct 26, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/84
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for updating software of a control unit of a vehicle which includes exchanging individual data blocks of the software in a memory of the control unit and generating cryptographic material for each exchanged data block by processing each exchanged data block with a cryptographic function. The method includes storing the generated cryptographic material in a test data block which contains cryptographic material for each data block and includes verifying the consistency of the cryptographic material, stored in the test data block, of all data blocks of the software by matching the cryptographic material stored in the test data block with consistency test data. The disclosed embodiments reduce the necessary cryptographic operations during a partial updating of the software of a control unit of a vehicle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.