Key management method used in encryption processing for safely transmitting and receiving messages
Key management method used in encryption processing for safely transmitting and receiving messages
- New search for: UJIIE YOSHIHIRO
- New search for: ANZAI JUN
- New search for: KITAMURA YOSHIHIKO
- New search for: TANABE MASATO
- New search for: KISHIKAWA TAKESHI
- New search for: UJIIE YOSHIHIRO
- New search for: ANZAI JUN
- New search for: KITAMURA YOSHIHIKO
- New search for: TANABE MASATO
- New search for: KISHIKAWA TAKESHI
A key management method serves as an electronic control unit (ECU) in an onboard network system having a plurality of ECUs that perform communication by frames via a network. The method includes storing, in a first-type ECU, a shared key to be mutually shared with second-type ECUs, and executing encryption processing regarding a framed transmitted or received via the network, based on the shared key. The method further includes executing, by the first-type ECU, inspection of a security state of the shared key stored by the second type ECUs in a case where a vehicle is in at least one of the following particular states, including immediately after the vehicle is not driving and is entering the accessory-on state, immediately after the vehicle is not driving and the vehicle is entering the accessory-off state, and immediately after the vehicle engine is started.
Document information
Key management method used in encryption processing for safely transmitting and receiving messages
2023-10-31
Patent
Electronic Resource
English
| IPC: | H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION , Übertragung digitaler Information, z.B. Telegrafieverkehr / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
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