Data communication method for vehicle, electronic control unit and system thereof
AssigneeInfobank Corp.
InventorJung Min KIM
Life of this patent
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Abstract
Provided are a data communication method for a vehicle, an electronic unit and a system thereof, and the method includes: receiving the data for the vehicle; receiving a message authentication value; decoding the received data for the vehicle by using a counter value shared with a control unit at a transmitting side after authenticating the received message authentication value; and designating a counter value to be used later and transmitting the designated counter value to the control unit at the transmitting side when the decoding is unsuccessful.
Claims14
A communication method for transmitting data for a vehicle between control units in a vehicle with a plurality of control units, the communication method comprising:
- receiving the data for the vehicle;
- receiving a message authentication value;
- decoding the received data for the vehicle by using a counter value shared with a control unit at a transmitting side after authenticating the received message authentication value;
- and
- designating a counter value to be used later and transmitting the designated counter value to the control unit at the transmitting side when the decoding is unsuccessful.
A communication system for transmitting data for a vehicle between control units in a vehicle with a plurality of control units, the communication system comprising:
- a first control unit encoding the data for the vehicle by using a counter value and an encoding key and generating a message authentication value by the encoded data for the vehicle by using an authentication key to broadcast the encoded data for the vehicle and the generated message authentication value;
- and
- a second control unit receiving the data for the vehicle and the message authentication value, decoding the received data for the vehicle by using the counter value and the encoding key after authenticating the received message authentication value, and designating a counter value to be used later when the decoding is unsuccessful and transmitting the designated counter value to the first control unit.
Dependencies are inferred from the claim text.