Vehicle software authentication method and system and medium

The invention relates to a vehicle software authentication method and system and a medium, and relates to the field of vehicle-mounted system security, and the method comprises the steps: receiving an encrypted right and interest file sent by a cloud, verifying the right and interest file, and then carrying out vehicle software right and interest updating; obtaining a target state of a right function based on the right file; collecting an actual state of a function module corresponding to the target state; and comparing the target state with the actual state, and updating the vehicle software rights and interests based on a comparison result. According to the invention, the potential software authentication security risk during vehicle right updating is effectively reduced. 本发明涉及一种车辆软件鉴权方法、系统及介质，涉及车载系统安全领域，所述方法包括接收云端发送的已加密的权益文件，并对所述权益文件进行验证后进行车辆软件权益更新；基于所述权益文件获取权益功能的目标状态；收集所述目标状态对应功能模块的实际状态；比较所述目标状态和所述实际状态，并基于比较结果更新车辆软件权益。本发明有效降低了车辆权益更新时潜在的软件鉴权安全风险。