Location privacy based ring signature method in Internet of vehicles

Abstract

The invention relates to a location privacy based ring signature method in the Internet of vehicles, belongs to the field of vehicle identity authentication in the Internet of vehicles, and aims at solving the problem in detecting collusive Sybil attacks. Path information of a vehicle is used as identity information of the vehicle, the path information contains location privacy information of the vehicle, and location privacy information is protected in the ring signature method. Compared with a present Sybil attack detection method, the vehicle identity authentication method provided by the invention can make vehicles independent from each other, protect the location privacy of the vehicles, and detect the novel collusive Sybil attack existing in the Internet of vehicles in real time.

Description

technical field [0001] The invention belongs to the field of vehicle identity authentication in the Internet of Vehicles, relates to the privacy protection and identity authentication technology of the Internet of Vehicles, and specifically relates to a ring signature method based on location privacy in the Internet of Vehicles. Background technique [0002] Vehicle identity authentication technology is the basis of all Internet of Vehicles services. Without identity authentication technology, vehicles cannot judge the authenticity and validity of received messages. At the same time, there are false messages reported by malicious vehicles, which leads to extreme insecurity and even paralysis of the network. Vehicle identity authentication technology needs to realize the anonymous authentication of the vehicle and protect the privacy of the vehicle from being leaked, especially the location privacy protection of the vehicle. Most of the anonymous authentication of vehicles us...

AI Technical Summary

Problems solved by technology

In an urban environment, this RSU arrangement is expensive and not feasible

Moreover, this method cannot realize the independent authentication of the vehicle, so that the RSU and the local server waste a lot of computing and communication resources on the vehicle identity authentication

[0005] In the method of using the authentication information of the authentication center as the vehicle identity, the vehicle actively requests the authentication information from the passing RSU as evidence of passing the RSU at a certain moment. , but there are limitations in independent detection of vehicles, location privacy protection of vehicles, collusion between vehicles, etc.

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