Application and Research of Hybrid Encryption Algorithm in Vehicle FOTA System

This paper mainly studies the application of hybrid encryption algorithm in the vehicle FOTA (Firmware Over The Air) system. The purpose is to prevent the vehicle FOTA system from maliciously invading, stealing or tampering with the communication data during the transmission process to ensure the safety and timeliness of the vehicle FOTA system. In this paper, the ECC algorithm and AES algorithm are analyzed, and combined with their respective advantages into a hybrid encryption algorithm. It is applied to the transmission and reception module of the vehicle FOTA system to solve the security problem brought by the FOTA function. After security and timeliness Test, the final conclusion is that the hybrid encryption algorithm improves the security of the system under the premise of ensuring timeliness.