An inter-vehicle message anonymous authentication method and system in an Internet of Vehicles environment

An anonymous authentication and Internet of Vehicles technology, applied in the field of message authentication research, can solve the problems of large storage space, not suitable for computing power, and long time consumption

Active Publication Date: 2019-05-21
WUHAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the vehicle privacy protection authentication protocol, the traditional pseudonym certificate-based protocol has problems such as long authentication time and large storage space, while the ID-based authentication protocol uses complex mathematical calculations for authentication
When the vehicle density is relatively high, it is not suitable for OBU with small computing power, which is different from the previous certificate-based message verification and takes a long time

Method used

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  • An inter-vehicle message anonymous authentication method and system in an Internet of Vehicles environment

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Embodiment Construction

[0045] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, but the content of the present invention is not limited to the specific embodiments described below.

[0046] The present invention mainly adopts following main steps:

[0047] 1. Vehicle identity authentication system entity initialization and vehicle network registration. The system entities include the authentication center TA, the regionalization server LA and the roadside infrastructure RSU. The vehicle network registration refers to the registration of the vehicle's real identity in the certification center TA and keys, and back them up in TA.

[0048] 2. The vehicle sends a pseudonym certificate request containing multiple pseudonym public keys to the regional server LA, and LA sends the information to the certification center TA for verification. After the certification center TA passes the verification, the regional server LA signs the...

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Abstract

The invention relates to an inter-vehicle message anonymous authentication method and system in an Internet of Vehicles environment, in the method, each vehicle has a unique identity, and in communication, a short-term pseudonymous certificate needs to be obtained through TA authentication in advance and is used for proving the legal identity of the vehicle. The vehicle negotiates with each neighbor vehicle a communication authentication secret key through the pseudonym certificate, and then based on the communication secret key, signature and signature verification can be realized through simple and rapid HMAC. Compared with a previous message authentication mode, the method has the advantages that the time required for message authentication each time is shortened on the whole, and the environment of vehicle information communication is improved.

Description

technical field [0001] The invention relates to the field of message authentication research, in particular to a method and system for anonymous authentication of messages between vehicles under the Internet of Vehicles environment. Background technique [0002] The frequency of message sending in the Internet of Vehicles is relatively high. To ensure its reliability and real-time performance, there are relatively high requirements for the time of message authentication. In the vehicle privacy protection authentication protocol, the traditional pseudonym certificate-based protocol has problems such as long authentication time and large storage space, while the ID-based authentication protocol uses complex mathematical calculations for authentication. When the vehicle density is relatively high, it is not suitable for OBU with small computing power, which is different from the previous certificate-based message verification and takes a long time. [0003] Aiming at the probl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W12/06H04W12/02H04L29/06H04L9/32H04L9/08H04W12/069
Inventor 黄传河李佳伟
Owner WUHAN UNIV
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