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Privacy protection method based on certificateless ring signcryption in vehicle-mounted ad hoc network

A vehicle self-organization and privacy protection technology, applied in the field of privacy protection based on certificateless ring signcryption, can solve the problem of low efficiency

Active Publication Date: 2019-08-23
NANTONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the calculation overhead of this method is the sum of the calculation overhead of signature and encryption, and the efficiency is not high

Method used

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  • Privacy protection method based on certificateless ring signcryption in vehicle-mounted ad hoc network
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  • Privacy protection method based on certificateless ring signcryption in vehicle-mounted ad hoc network

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Embodiment Construction

[0063] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0064] The privacy protection method based on certificateless ring signcryption in the vehicular ad hoc network provided by this embodiment is based on a typical VANET system. A typical VANET system generally includes the following three parts: (1) Vehicle node: each vehicle in the network is equipped with an on-board unit (OBU) that can be used for data interaction with other devices. OBU is generally a wireless sensor , communicate with other on-board units or roadside units via LTE 4G / 5G. (2) Roadside Unit RSU (Road SideUnit, RSU). RSUs are usually deployed on both sides of the road and at intersections, and communicate with vehicle nodes through LTE 4G / 5G, and the communication between RSUs is carried out through the secure channel of the wired network. (3) Trusted authority TA (Trust Authority, TA). Usually, the traffic management department in the area is re...

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Abstract

The invention relates to a privacy protection method based on certificateless ring signcryption in a vehicle-mounted ad hoc network. After the signcryption vehicle encrypts the message by using the private key of the signcryption vehicle, the ciphertext is secondarily encrypted by using the public key of the out-of-loop receiving vehicle, the out-of-loop receiving vehicle correspondingly decryptsthe ciphertext by using the private key of the signcryption vehicle after receiving the ciphertext, and the validity of the ciphertext is verified by using the public key of the signcryption vehicle,so that the source and the integrity of the communication message can be authenticated. The method has the beneficial effects that when the vehicle has an illegal behavior, the traffic management center tracks the real identity of the vehicle through the unidirectionality of the hash function, and the requirements of anonymity and traceability are met.

Description

technical field [0001] The invention relates to the technical field of vehicular ad hoc networks, in particular to a privacy protection method based on certificateless ring signcryption in vehicular ad hoc networks. Background technique [0002] VANET (Vehicular ad hoc Network) is a new type of multi-hop mobile ad hoc network, which consists of roadside infrastructure and vehicles equipped with mobile sensors with communication and computing functions. It mainly includes two communication modes: (1) Vehicle-to-vehicle communication V2V (Vehicle to Vehicle); (2) Vehicle-to-roadside infrastructure communication V2I (Vehicle to Infrastructure). With the rapid development of ITS (Intelligent Transportation Systems), intelligent technologies such as sensing, GPS, and wireless communication have been applied to VANET, providing people with an increasingly convenient and comfortable driving environment. However, due to the characteristics of VANET's high mobility, large network sc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/08H04L29/06H04W4/44
CPCH04L9/0861H04L9/0866H04L9/0869H04L63/0414H04L63/0442H04W4/44
Inventor 章国安赵楠金丽季彦呈段玮季晨谷晓会
Owner NANTONG UNIVERSITY
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