A kind of car CAN bus encryption method
A technology of CAN bus and encryption method, which is applied in the direction of bus network, encryption device with shift register/memory, digital transmission system, etc., can solve problems such as low efficiency, easy to be affected by environmental factors, and unable to guarantee the sending order, and achieve The effect of ensuring safety
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[0025] The invention will be further described in detail below with reference to the accompanying drawings.
[0026] The present invention relates to a method of encryption of a car CAN bus, such as figure 1The first preferred flowchart shown, the method first transmits the node to re-combined the data block as several data blocks according to the AES encryption algorithm block byte length, and increase the school for each data block. The control mechanism and the end data block are added at the end of the end data block, and then use the random data to reset the end data block. Use the AES encryption algorithm to encrypt each ciphertext block, send nodes to each secret The text data block performs data segmentation and sets the time identity and the order identity to send it to the receiving node through the CAN network, the receiving node receives each ciphertext data block and detects its integrity, and then confirmed by the test results to abandon the reception or receive Afte...
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