关键词: 电子认证, V2X车联网, 电子签名, 假名证书, 通信安全, 密码技术

Abstract: Vehicletoeverything(V2X) gets help from the new generation of information and communication technology, which lets vehicles exchange information with vehicles, roadside units, and other road users，thereby improving traffic efficiency, saving resources, reducing pollution and accident rates, and improving traffic management. The security of V2X is the key to its normal operation and development. The article analyzes the key security requirements of V2X, as well as the combination of electronic authentication technology, V2X public key infrastructure, and various V2X certificate applications. The three application scenarios, VehicletoVehicle(V2V), VehicletoInfrastructure(V2I), and InfrastructuretoVehicle(I2V), are used to discourse the secure implementation and application effects of electronic authentication in V2X.

Key words: electronic authentication, vehicletoeverything (V2X), electronic signature, pseudonym certificates, communication security, cryptography