Internet of vehicles data secure storage and sharing method based on hybrid architecture

Abstract

The invention relates to the technical field of Internet of Vehicles secure communication, and discloses an Internet of Vehicles data secure storage and sharing method based on a hybrid architecture, and the method comprises the following specific steps: S1, when a vehicle Vi wants to join the Internet of Vehicles, obtaining a corresponding public and private key pair from TC and PKG respectively, and taking the public and private key pair as an account and a login password similar to those in a conventional network. The problems of data integrity and security in the communication process are solved by using an alliance chain-private chain double-chain structure, a center authority for generating a private key is introduced into an identity-based digital signcryption algorithm, and a ring signature scheme involving discrete center binomial distribution is designed; the edge computing technology and the cloud computing technology are combined, the purpose of real-time and efficient vehicle network is achieved, a reputation evaluation algorithm and node classification are introduced into a practical Byzantine fault-tolerant mechanism (PBFT), and the problem of high time delay in the communication process is solved.

Description

technical field [0001] The invention belongs to the field of secure communication of the Internet of Vehicles, and relates to block chain technology, an identity-based digital signcryption algorithm, edge computing technology and cloud computing technology in the field of information security. Background technique [0002] According to statistics from the Ministry of Public Security, there will be 33.28 million newly registered motor vehicles nationwide in 2020, an increase of 1.14 million or 3.56% over 2019. According to data analysis, there are nearly 200,000 traffic accidents in China every year, and an average of 1 person dies in a car accident every 8 minutes. Vehicles in the IoV environment are equipped with advanced on-board sensors and intelligent electronic devices, and are further equipped with a wireless communication device on-board unit (OBU), which can effectively complete the interactive communication between IoV internal members. At present, there are three ...

AI Technical Summary

Problems solved by technology

In addition, if the vehicle's identity information is leaked during the communication process, private information such as the vehicle's location and running track may be exposed

Because the safety and integrity of traffic information is almost related to the protection of people in the car, once the transmitted data is wrong, it may cause traffic accidents and casualties

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