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Non-bilinear mapping certificateless signature-based vehicle self-assembly network authentication method

A vehicle ad hoc network and bilinear mapping technology, applied in the field of data security, can solve problems such as low overall efficiency, reduced solution efficiency, and complex bilinear mapping calculations

Active Publication Date: 2018-04-20
CHONGQING UNIV OF POSTS & TELECOMM
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the verification process of this scheme is based on bilinear mapping, and the calculation of bilinear mapping is relatively complicated, which reduces the efficiency of the entire scheme
In 2017, the author NieH et al. also proposed a certificateless message signature authentication scheme based on the Internet of Vehicles environment in the document "A Privacy-Preserving V2I Authentication Scheme without Certificates". The verification process of this scheme is still based on bilinear mapping. Overall efficiency is still not high

Method used

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  • Non-bilinear mapping certificateless signature-based vehicle self-assembly network authentication method

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Embodiment Construction

[0058] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0059] Such as figure 1 , figure 2 As shown, the vehicle ad hoc network authentication method based on non-bilinear mapping without certificate signature includes the following steps:

[0060] S1: System initialization;

[0061] S2: Vehicle anonymous generation stage;

[0062] S3: Vehicle key generation stage;

[0063] S4: message signature;

[0064] S5: Message authentication.

[0065] Step S1 is specifically:

[0066] TA chooses a random number As the master private key of TA, calculate P pub = sP is used as the master public key of TA;

[0067] TRA chooses a random number As the master private key of TRA, calculate T pub = tP is used as the master public key of TRA;

[0068] TA chooses two secure Hash functions:

[0069] TA exposes public parameters {q,P,P pub , T pub ,H 1 ,H 2}, where the parameter P is the cyclic ...

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Abstract

The invention relates to a non-bilinear mapping certificateless signature-based vehicle self-assembly network authentication method, belonging to the field of data security. The method is based on a scheme of protecting privacy of a user and improving the efficiency of message signature authentication, and can protect privacy information of the user in a message passing authentication process; ifthe transmitted message is illegal, a TRA(tracing authority) uses a tracking secret key to track the real identity of a vehicle; in a process of message verification, bilinear mapping is not used, andmessage batch transmission and batch authentication are also supported, so that the method is suitable for rapid transmission and authentication operations of the message in a vehicle networking environment with higher mobility. The method provided by the invention can protect the privacy information of the user in the message passing authentication process; furthermore, if the transmitted message is illegal, the tracking authoritative center TRA can track the real identity of the vehicle by means of the private key; in the process of message verification, the mechanism does not use the bilinear mapping and also supports the message batch transmission and batch authentication, so that the method is suitable for rapid transmission and authentication of the message in the vehicle networkingenvironment with higher mobility.

Description

technical field [0001] The invention belongs to the field of data security, and relates to a vehicle ad hoc network authentication method based on non-bilinear mapping without certificate signature. Background technique [0002] With the increasing number of vehicles in today's society, traffic jams, parking difficulties, traffic accidents and some traffic-related problems frequently occur around us. Therefore, traffic management, safe driving and traffic communication are attracting more and more people's attention. As a special mobile ad hoc network, it is an important application form in the field of intelligent transportation. It aims to improve the driving safety and driving efficiency of road traffic, and can effectively strengthen traffic safety and prevent and control Congestion and improving the traffic driving environment have urgent practical application requirements, broad application prospects, and great strategic significance for improving people's livelihood....

Claims

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Application Information

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IPC IPC(8): H04L9/08H04L9/30H04L9/32H04W4/44H04W12/02H04W12/06H04W84/18
CPCH04L9/0869H04L9/3066H04L9/3252H04W12/02H04W12/06H04W84/18
Inventor 唐飞谭富元罗文俊
Owner CHONGQING UNIV OF POSTS & TELECOMM
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