Vehicle communication system, communication method, and storage medium storing communication program
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United States of America Patent
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Nov 28, 2023
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N/A
app pub date -
Nov 12, 2021
filing date -
Nov 13, 2020
priority date (Note) -
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Abstract
A vehicle communication system, including plural control devices configured to carry out communication with one another, wherein a transmitting device and a receiving device each include a memory and a processor. The processor at the transmitting device generates first authentication information based on a message and the encryption key, and in a case in which there is an abnormality at the encryption key, transmits the predetermined authentication information and the message to the receiving device. The processor at the receiving device generates second authentication information based on the encryption key and the received message, collates the first authentication information and the second authentication information, and authenticates the message, and in a case in which, after starting-up of the receiving device, authentication has not succeeded even once, and the received first authentication information and the predetermined authentication information match, accepts the received message.
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