Real-time security data aggregation and recovery method based on vehicle cloud

Abstract

The invention discloses a real-time safety data aggregation and recovery method based on vehicle cloud. A vehicle communicates with a roadside unit or other vehicles through a vehicle-mounted unit, atraffic control server performs data interaction with a vehicle cloud and the roadside unit, a plurality of vehicle clusters are set in a certain area, and each vehicle cluster comprises a plurality of vehicles and comprises a data preprocessing stage and a batch authentication aggregation stage. The method not only supports a batch authentication function before data aggregation, but also is greatly helpful for efficient and safe operation of the Internet of Vehicles.

Description

technical field [0001] The invention belongs to the technical field of Internet of Vehicles, and in particular relates to a data aggregation method. Background technique [0002] The rapid development of Internet of Vehicles technology has spawned many emerging applications. Vehicle cloud is one of them, which combines the Internet of Vehicles and cloud computing technology. As we all know, the cloud server itself has powerful computing power and can provide users with unlimited storage space. In the Internet of Vehicles system, each vehicle is equipped with an on-board unit, which the vehicles can use to communicate with each other. However, due to the limited storage and computing capabilities of the on-board unit itself, cloud servers are needed for efficient vehicle communication. The vehicle cloud is a great combination. By constructing a vehicle cloud, vehicles can transmit data to cloud servers and enjoy different services. [0003] The vehicle cloud provides gre...

AI Technical Summary

Problems solved by technology

However, there are many problems in the current data aggregation scheme. Wrong, inefficient, and unsafe data aggregation schemes may affect traffic safety and even cause huge loss of life and property to users.

The data aggregation scheme based on secret sharing in the Internet of Vehicles can verify the integrity of the aggregated data through the Merkle hash tree. Although this scheme can reduce energy consumption, the existence of redundant data greatly reduces the efficiency of the aggregation scheme.

Some scholars have proposed a data aggregation scheme based on Internet of Vehicles communication, which is used for efficient data transmission in the Internet of Vehicles, so that vehicles can avoid traffic congestion during driving. Although this scheme can reduce computing overhead, the data transmitted by vehicles Vulnerable to adversary attacks and does not support batch verification of data

Traditional data aggregation schemes are mostly based on one-dimensional data aggregation. In reality, traffic data has multi-dimensional situations.

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