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

A data transmission method and hybrid encryption technology, applied in the field of traffic sensor network data transmission based on hybrid encryption, can solve problems such as difficulty in key management, low encryption speed, etc., to ensure that it cannot be tampered with, improve authentication efficiency, and enhance confusion Effect

Active Publication Date: 2021-03-09
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art, and provide a traffic sensor network data transmission method and system based on hybrid encryption, which is used to solve how to realize data with low key management difficulty, fast encryption speed and high efficiency transmission problem

Method used

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

Examples

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Effect test

Embodiment 1

[0071] The invention provides a traffic sensor network data transmission method based on hybrid encryption. Based on the hybrid encryption algorithm obtained by the symmetric encryption algorithm SM4 and the asymmetric encryption algorithm SM2, end-to-end data transmission is performed between the client and the server.

[0072] combine figure 1 , the specific steps of the data transmission method of the present invention are as follows:

[0073] Step 1. Perform two-way authentication on the client and the server based on the intelligent transportation lightweight key digital certificate carried by the server, and establish a communication channel between the client and the server after the authentication is passed.

[0074] Step 2. The client randomly generates the SM2 key pair, and encrypts the SM2 key pair to the server through the key digital certificate.

[0075] Step 3. The client and the server are respectively the sender and the receiver. The sender randomly generate...

Embodiment 2

[0141] A traffic sensor network data transmission system based on hybrid encryption of the present invention includes an authentication unit, a generation unit, a sending unit, a receiving unit, an encryption unit, a decryption unit and a hash function unit. in:

[0142] The authentication unit is used for two-way authentication between the client and the server. The two-way authentication is based on the intelligent traffic lightweight key digital certificate carried by the server. After the verification is passed, a communication channel is established between the client and the server for end-to-end data transmission.

[0143] The generation unit is used to generate random SM2 key pair, SM4 key Key and random plaintext Data.

[0144] The sending unit is used to send the SM2 key pair to the server through the key digital certificate.

[0145] The receiving unit is used to receive the SM2 key pair in the key digital certificate in communication.

[0146] The encryption uni...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/44H04W12/03H04W12/041H04W12/069H04W12/69H04W84/18
CPCH04W84/18H04W4/44
Inventor 戚湧刘洺君
Owner NANJING UNIV OF SCI & TECH
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