Real road condition data aggregation method oriented to collusion attack

Abstract

The invention belongs to the technical field of Internet of Vehicles data sharing, and particularly relates to a real road condition data aggregation method oriented to collusion attacks. A vehicle must be registered before generating data; in an initialization phase, when a vehicle generates data, if the vehicle is in a registered list, an identity inquiry is sent to the vehicle, and if the vehicle generates a positive response to the inquiry and verifies that the response is correct and the behavior is legal, the connection between the vehicle and the local block chain is successfully established; in the data aggregation stage, road condition information shared by vehicles in each set road can be collected into the RSU, and the RSU performs data aggregation on the road condition information of the road where the RSU is located to generate unique road condition information. The problem that the authenticity of the road condition information cannot be ensured due to the fact that a block chain network cannot find malicious nodes under the condition that a large number of malicious nodes publish false road condition information to form a collusion attack on the network is solved.

Description

technical field [0001] The invention belongs to the technical field of Internet of Vehicles data sharing, and in particular relates to a method for aggregating real road condition data facing collusion attacks. Background technique [0002] With the rise of smart cities and increasing traffic pressure, the Internet of Vehicles, which integrates mobile edge computing technology and vehicle ad hoc networks, has attracted extensive attention from the academic community. Many car networking services have been proposed so far. For example, a real-time traffic information service can better plan travel routes for users to avoid traffic jams; a weather information sharing system can plan departure or arrival times for users. The deployment of these services needs to rely on the shared data of vehicles on the road to provide basic data support. [0003] Because sensory data (such as location information) may have the risk of privacy leakage. Therefore, in the Internet of Vehicles...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a collusion attack-oriented system for the problem that the block chain network cannot find malicious nodes and thus cannot guarantee the authenticity of road condition information when a large number of malicious nodes publish false road condition information to form a collusion attack on the network. Real road condition data aggregation method

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