Vehicle node location privacy protection system and method in conjunction with PMIPv6 (Proxy Mobile IPv6) framework

Abstract

The invention provides a vehicle node location privacy protection system and method in conjunction with a PMIPv6 (Proxy Mobile IPv6) framework. The method comprises the following steps that: an LBS (Location Based Server) and OBUs (On Board Units) register with a TA (Trusted Authority), and the LBS acquires a certificate and a private key issued by the TA and calculates a public key of the LBS; the OBUs acquire a series of pseudonyms and corresponding public keys and private keys issued by the TA; the OBUs generate location service requests by using the pseudonyms and location information andsend the location service requests to an LMA (Local Mobility Anchor) through MAGs (Mobile Access Gateways), and the LMA aggregates the location service requests of the OBUs and send an aggregated location service request to the LBS; and the LBS aggregates responses of all OBUs accessing to the same LMA and transmits an aggregated response to the LMA by taking the pseudonyms of the OBUs and corresponding response messages as responses, the LMA transmits the aggregated response to corresponding MAGs for broadcasting; and the OBUs under the same MAGs acquire responses corresponding to requested location services according to the pseudonyms of the OBUs. Through adoption of the vehicle node location privacy protection system and method, vehicle node location privacy protection is realized in conjunction with the PMIPv6 framework, and the LMA sends a location-based request to the LBS and accepts a response message instead of the OBUs according to the idea of group, so that location privacy of the OBUs is ensured.

Description

technical field [0001] The invention belongs to the technical field of network security, in particular to a vehicle node location privacy protection system and method combined with PMIPv6 architecture. Background technique [0002] With the development of mobile Internet networks, mobility protocols have been widely used, and the mobility services of vehicle nodes and related security and location privacy issues have attracted extensive attention. There are two entities included in the VANET protocol: Vehicle Unit (OBU) and Roadside Unit (RSU). The PMIPv6 protocol is a mobility management protocol for mobile nodes, in which a fast switching strategy can be adopted during node switching to improve switching efficiency. Combining PMIPv6 network architecture with VANET can improve the efficiency of vehicle node movement, especially the efficiency of node switching. [0003] Although the efficiency of vehicle nodes has been improved, there are still some security and privacy l...

AI Technical Summary

Problems solved by technology

After the information is leaked, it may be tracked by malicious vehicle nodes or mobile devices, thus threatening the security of vehicle nodes

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