Privacy protection and authentication system based on digital re-signature and traceability technology

Abstract

A privacy protection and authentication system based on digital re-signature and traceability technology is composed of an authentication center system, a road-side units (RSU) and on-board units (OBUs). The authentication center system, the RSU and the OBU are in interconnection with each other through a wireless network, the authentication center system generates a corresponding re-signature secret key for each OBU according to identification parameters of the OBUs, and the re-signature secret keys are used for performing re-signature on information. Simultaneously, a public key of the authentication center system, the RSU and the OBUs is used for tracing back to information senders. The privacy protection and authentication system based on the digital re-signature and traceability technology has the advantage that safety of the vehicle ad-hoc network privacy protection and authentication system based on the agent re-signature technology combines information authentication and privacy protection, is small in actual communication protocol interaction times and low in vehicle unit storage cost and consultative communication cost, and has certain performance advantages and practical potential.

Description

technical field [0001] The invention relates to the field of privacy protection of the Internet of Vehicles, in particular to a privacy protection authentication system for an ad hoc network of vehicles based on digital re-signature technology. Background technique [0002] With the large-scale and high-frequency use of vehicles in modern society, through the establishment of vehicular ad hoc networks (VANETs), also known as the Internet of Vehicles, the Internet of Vehicles constitutes the basic environment of the "smart car" network. On the one hand, the Internet of Vehicles can effectively improve the driving experience. Drivers can effectively understand the real-time driving environment and accurately locate the location of surrounding friends through location sharing services; on the other hand, it can effectively relieve traffic pressure and reduce traffic accidents. However, there is a possibility that user privacy information may be leaked in the Internet of Vehicle...

AI Technical Summary

Problems solved by technology

[0004] At present, there are many technical solutions in the research of vehicle privacy protection, but under necessary conditions, such as disputes or safety accidents, how to trace the identity under the premise of protecting vehicle privacy has become an urgent problem to be solved

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