Vehicle node location privacy protection system and method combined with pmipv6 architecture

Abstract

The invention provides a vehicle node location privacy protection system and method combined with PMIPv6 architecture. LBS and OBU register with TA, LBS obtains the certificate and private key issued by TA, and calculates its own public key; OBU obtains a series of pseudonyms issued by TA and the corresponding public and private keys; OBU uses pseudonyms and location information to generate location services The request is sent to the LMA through the MAG, and the LMA aggregates the location service requests of each OBU and sends it to the LBS; the LBS responds with the pseudonym of the OBU and the corresponding response message, and sends the aggregate responses of all OBUs connected to the same LMA to the LMA , the LMA then broadcasts to the corresponding MAG, and the OBU under the same MAG obtains the response corresponding to the requested location service according to its pseudonym. The invention realizes the location privacy protection of vehicle nodes in combination with the PMIPv6 framework, uses the idea of ​​a group, uses the LMA instead of the OBU to send a location-based request to the LBS and receives a response message, thereby ensuring the location privacy of the OBU.

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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