End-to-end vehicle secure ECU unlock in a semi-offline environment
US10491392B2 · kind B2 · utility
2Cited by
17References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 1, 2017 |
| Grant date | Nov 26, 2019 |
| Priority date | — |
| Expiry date | Aug 9, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/84
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Method and apparatus are disclosed for end-to-end vehicle secure ECU unlock in a semi-offline environment. An example vehicle electronic control unit includes a first processor and a second processor. The first processor, when unlocked, provides diagnostic information. The second processor sends a seed value to a diagnostic tool. Additionally, the second processor, in response to receiving a second key, unlocks the first processor. The second processor, after receiving a first verifier, decrypts the first verifier to generate a new key, replaces a current key with the new key, and sends a second verifier to the diagnostic tool.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.