Access key transmission over personal area networks in vehicles
US10742403B2 · kind B2 · utility
0Cited by
3References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 11, 2018 |
| Grant date | Aug 11, 2020 |
| Priority date | — |
| Expiry date | Dec 11, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W84/18
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A vehicle includes a controller. The controller is configured to send a nonce encrypted according to a symmetric encryption key. The nonce is sent responsive to receiving a pair request over a personal area network from a nomadic device outside the vehicle. The controller is further configured to initialize a secure connection using a random key and permit vehicle access according to data received via the secure connection. The initialization is responsive to receiving a concatenation of the random key and an incrementation of the nonce encrypted with the symmetric encryption key.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.