US 2019/0173862 A1 · VEHICLE AND METHOD FOR CONTROLLING SAME

Abstract

A method of controlling a vehicle that includes a plurality of electronic control units (ECUs), the method including: allocating an order in which at least one ECU among the plurality of ECUs is to be assigned an encryption key, based on a data rate of each ECU; receiving, by the at least one ECU, at least one encryption key that is assigned to the at least one ECU according to the allocated order; and performing, by the at least one ECU and using the assigned at least one encryption key, (i) encryption of data to be transmitted through a Controller Area Network (CAN) communication bus, or (ii) decryption of data that is transmitted through the CAN communication bus.

Claims20

Dependent claims

A method of controlling a vehicle that comprises a plurality of electronic control units (ECUs), the method comprising:

allocating an order in which at least one ECU among the plurality of ECUs is to be assigned an encryption key, based on a data rate of each ECU;
receiving, by the at least one ECU, at least one encryption key that is assigned to the at least one ECU according to the allocated order;
and
performing, by the at least one ECU and using the assigned at least one encryption key, (i) encryption of data to be transmitted through a Controller Area Network (CAN) communication bus, or (ii) decryption of data that is transmitted through the CAN communication bus.

1 more element

A vehicle comprising a plurality of electronic control units (ECUs), the vehicle comprising:

a plurality of slave ECUs each configured to, using an encryption key assigned thereto, (i) encrypt data to be transmitted through a CAN communication bus, or (ii) decrypt data that is transmitted through the CAN communication bus;
a master ECU configured to:
allocate an order in which at least one slave ECU among the plurality of slave ECUs is to be assigned an encryption key, based on a data rate of each of the at least one slave ECU;
and
sequentially assign at least one encryption key to the at least one slave ECU according to the allocated order;
and
a master-of-master-ECUs configured to transmit an encryption key assignment command to the master ECU for the master ECU to assign encryption keys to the plurality of slave ECUs, based on a predetermined condition being satisfied.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application

16/266,911Filed 4 Feb 2019

Priority

3 Aug 2016

Published

6 Jun 2019

Term ends

Not estimatedThe source records don’t support an estimate.

Classification14 codes

H04L 63/062
For supporting key management in a packet data network: for key distribution, e.g. centrally by trusted party
H04L 9/083
Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely…:…
H04L 9/088
Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords: usage controlling of secret information,…
H04L 9/0891
Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords: revocation or update of secret…

Vehicle and method for controlling same

Life of this patent

Vehicle and method for controlling same

Life of this patent

Abstract

Claims20