Traffic sensor network data transmission method and system based on hybrid encryption, and medium

Abstract

The invention discloses a traffic sensor network data transmission method and system based on hybrid encryption, and the method comprises the steps: carrying out the end-to-end data transmission between an intelligent vehicle-mounted terminal and intelligent infrastructure side equipment and a cloud computing center, and carrying out the bidirectional authentication through an intelligent trafficlight-weight secret key digital certificate borne by a server; and in the data transmission process, using a hybrid encryption transmission method for carrying out dual encryption on data, and meanwhile, adding a random key and a random plaintext to calculate a hash value for comparison and verification. According to the method, the advantages of high encryption and decryption speed of the SM4 symmetric encryption algorithm and low management difficulty and high security of the encryption key of the SM2 asymmetric encryption algorithm are combined, so that the method can be applied to the communication process of an intelligent terminal, intelligent basic side equipment and a computing center, and the security and the transmission efficiency of data transmission of the traffic sensor network can be effectively improved.

Description

technical field

[0001] The invention relates to the technical field of vehicle networking security, in particular to a traffic sensor network data transmission method, system and medium based on hybrid encryption. Background technique

[0002] With the development of intelligentization and networking in the automobile industry, all elements of transportation will be exposed to various network environments. The acquisition and collection of various basic information data of intelligent transportation needs to rely on the devices installed on running vehicles and roadside facilities. information node. These nodes face various threats such as information leakage, data tampering, replay attacks, and denial of service. Not only are information vulnerable to air interception, eavesdropping, or tampering, but nodes are also vulnerable to physical manipulation by attackers to obtain information stored in nodes. , and then pose a threat to the entire intelligent transportation netwo...

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