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Privacy-protected vehicle 3D positioning method based on v2r or v2v communication in vehicle network

A technology of privacy protection and positioning method, which is applied to the field of 3D positioning technology and key exchange protocol, which can solve impractical problems and achieve the effect of low delay

Active Publication Date: 2020-06-16
浙江曲速科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

AOA-based methods require large antenna arrays, which are not practical for vehicles in VANETs

Method used

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  • Privacy-protected vehicle 3D positioning method based on v2r or v2v communication in vehicle network
  • Privacy-protected vehicle 3D positioning method based on v2r or v2v communication in vehicle network
  • Privacy-protected vehicle 3D positioning method based on v2r or v2v communication in vehicle network

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Experimental program
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Effect test

Embodiment Construction

[0032] A privacy-protected vehicle 3D positioning method based on V2R communication in a vehicle network, comprising the following entities: a trusted authority (TA) that generates and issues system parameters, a vehicle, and a roadside unit (RSU), specifically including the following steps:

[0033] Step 1: Global Settings

[0034] Input a security parameter λ, TA performs the following operations:

[0035] 1) Select a cyclic multiplicative group with order q pick a generator

[0036] 2) Generate a system master key s and the corresponding master public key g 0 . TA uses s to issue certificates for vehicles and RSUs. g 0 is used to verify the validity of the certificate;

[0037] 3) Choose a symmetric encryption scheme and a MAC scheme Symmetric key K in symmetric encryption scheme 1 and the symmetric key K in the MAC scheme 2 have the same length;

[0038] 4) Select a hash function H: {0, 1} * - → {0, 1} l , l is and The bit length of the key used in ; ...

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Abstract

The invention discloses a privacy-protected vehicle 3D positioning method based on V2R or V2V communication in a vehicle network, including the steps of global setting, registration, establishment of a safe channel, and position certification. Aiming at the problems that most of the existing vehicle positioning systems can only realize 2D positioning and cannot realize accurate 3D positioning and vehicle privacy protection, the present invention proposes privacy-protected vehicle 3D positioning methods based on V2R communication and V2V communication respectively, so that A vehicle with an unknown 3D position can obtain the 3D position efficiently and accurately with the help of roadside units or vehicles with known 3D positions under the premise of protecting privacy.

Description

technical field [0001] The invention belongs to the field of vehicle network information security, relates to vehicle positioning and privacy protection in the vehicle network, and involves 3D positioning technology and key exchange protocol. Background technique [0002] In-vehicle networking is a new technology used to improve traffic efficiency and road safety. A typical vehicular network is mainly composed of vehicles and roadside units (RSU). Vehicle-to-vehicle (V2V), vehicle-to-RSU (V2R), and RSU-to-vehicle (R2V) communications are performed between a vehicle or an RSU and surrounding vehicles or RSUs to exchange information. The short-range communication (DSRC) protocol is designed to support V2V, V2R, and R2V communications in vehicular networks. [0003] Many applications in the vehicle network, such as collision warning, speed warning, and vehicle automatic navigation, are based on vehicle location. Most of the positioning systems currently used in the vehicle n...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W64/00H04W4/40H04W12/04H04L9/32H04L29/06H04W12/041H04W12/0471
CPCH04L9/3242H04L9/3263H04L63/0435H04L63/083H04W4/40H04W12/04H04W64/00
Inventor 张磊裴倩文康步荣
Owner 浙江曲速科技有限公司
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