Message authentication method based on semi-trusted management center in Internet of Vehicles

A technology of message authentication and management center, which is applied to services based on specific environments, vehicle wireless communication services, public keys for secure communications, etc., and can solve problems that cannot well meet actual needs

Active Publication Date: 2021-03-02
ANHUI UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Traditional solutions are implemented based on a trusted third party. Although VANET is relatively safe, this assumption cannot well meet the needs of reality.

Method used

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  • Message authentication method based on semi-trusted management center in Internet of Vehicles
  • Message authentication method based on semi-trusted management center in Internet of Vehicles
  • Message authentication method based on semi-trusted management center in Internet of Vehicles

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Embodiment Construction

[0073] The technical solutions of the present invention will be described in detail below, but the protection scope of the present invention is not limited to the embodiments.

[0074] Such as figure 1 As shown, a method for message authentication based on a semi-trusted management center in a kind of Internet of Vehicles of the present invention comprises the following steps:

[0075] (1) System initialization: This step includes three stages: initialization of STA, initialization of RSU and initialization of OBU;

[0076] (2) Driving process: This step includes six stages: partial key generation, group key acquisition, signature key and pseudo-identity generation, message signature, sending and receiving information, and group key update.

[0077] In this embodiment, the corresponding parameters and their meanings are shown in Table 1

[0078] Table 1:

[0079]

[0080] The system initialization process in the above step (1) includes the following steps: This part main...

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Abstract

The invention discloses a message authentication method based on a semi-trusted management center in the Internet of Vehicles. The user communicates with the RSU and other vehicles deployed on both sides of the road through the OBU, and extracts, analyzes and effectively utilizes the messages, making the driving of the vehicle safer , and users can obtain more efficient services. The present invention is based on the environment of a semi-trusted management center, which is more in line with reality. At the same time, the pseudonym of the vehicle is jointly generated by the vehicle, RSU and STA. When tracking the identity of the vehicle, it is jointly executed by the RSU and STA, and a single party cannot obtain the real identity of the vehicle. , so as to ensure that the identity privacy of the user will not be leaked and improve security. The present invention adopts a self-healing key distribution method to exclude revoked vehicles from the group, so that the vehicle does not need to store and query the revocation list, reducing storage space , computing resources and lookup time, improving the efficiency of message authentication.

Description

technical field [0001] The invention belongs to the wireless communication security technology of the Internet of Vehicles, and in particular relates to a message authentication method based on a semi-trusted management center in the Internet of Vehicles. Background technique [0002] Vehicle Networking (VANET), also known as Vehicle Ad Hoc Network, is a new type of mobile Ad Hoc network that can extract messages sent by vehicles through mutual communication between vehicles or communication between vehicles and roadside equipment. analysis and effective utilization. VANET can obtain surrounding environmental conditions and road information in a timely manner, and realize the early warning function for emergencies, so as to better ensure traffic safety. At the same time, VANET can keep abreast of traffic information and improve traffic efficiency. In VANET, vehicles communicate with each other or with roadside units (RSUs) through the dedicated short-range communication (D...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/08H04L9/30H04L9/32H04W4/40H04W12/06H04W12/069
CPCH04L9/083H04L9/0869H04L9/0891H04L9/3066H04L9/3297H04W4/40H04W12/06
Inventor 崔杰吴迪仲红许艳张静应作斌
Owner ANHUI UNIVERSITY
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