Patent ID: 11882213
Assignee: ROBERT BOSCH GMBH
Field: Digital communication (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 2:
3. The vehicle-mounted key-generation method according to claim 2, wherein the at least one ECU further comprises a key encryption module, and the other ECUs further comprise a key decryption module, the method further comprising:
encrypting the key generated using the key generation module with the key encryption module before sending the key; and
decrypting the encrypted key using the key decryption module before using the received key,
wherein the key transmission module in the at least one ECU is used to send the encrypted key to the other ECUs via the vehicle-mounted network,
wherein the corresponding key receiving modules in the other ECUs are used to receive the encrypted key, and
wherein the decrypted key is used for computation and verification through the corresponding key invoking modules in the other ECUs.