Internet of vehicles node trust evaluation method based on block chain and system

A blockchain and Internet of Vehicles technology, applied in the field of Internet of Vehicles security, can solve problems such as untrustworthy messages that have not been considered, and achieve the effects of reducing computing overhead, improving security, and avoiding computing

Active Publication Date: 2021-06-08
LANZHOU UNIVERSITY OF TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Even the evaluation scheme that combines node behavior and message trust does not take into account the problem of message untrustworthiness caused by trusted nodes

Method used

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  • Internet of vehicles node trust evaluation method based on block chain and system
  • Internet of vehicles node trust evaluation method based on block chain and system
  • Internet of vehicles node trust evaluation method based on block chain and system

Examples

Experimental program
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Embodiment

[0073] figure 1 It is a flow chart of the method for evaluating the trust of nodes in the Internet of Vehicles based on block chain in the embodiment of the present invention, such as figure 1 As shown, a blockchain-based vehicle networking node trust evaluation method, including:

[0074] Step 101: Obtain the event message sent by the source message sending node; the source message sending node is the vehicle node that discovered the event; the event message includes the distance between the source message sending node and the place where the event occurred.

[0075] Step 102: Obtain the trust level sent by the node receiving the message. If the trust level is credible, perform step 104; if the trust level is untrustworthy, perform step 103. The message receiving node is the vehicle node that receives the event message sent by the source message sending node; the trust level is the trust level generated by the message receiving node according to the data transmission behavio...

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Abstract

The invention discloses an Internet of Vehicles node trust evaluation method based on a block chain and a system thereof. The method comprises the following steps: acquiring an event message sent by a source message sending node; judging the authenticity of the event based on a Bayesian reasoning method according to the event message; when it is determined that the event is a real event, determining a message trust value of the source message sending node based on the correct message number and the false message number of the event messages sent by the source message sending node; uploading the message trust value to a block chain for storage; and performing Internet of Vehicles node trust evaluation according to the message trust value stored in the block chain. By adopting the method and system provided by the invention, the message trust value of the vehicle node is stored in the block chain, so that trust evaluation is carried out on the Internet of Vehicles node, and the security of the Internet of Vehicles can be improved.

Description

technical field [0001] The present invention relates to the technical field of Internet of Vehicles security, in particular to a method and system for evaluating trust of Internet of Vehicles nodes based on blockchain. Background technique [0002] As an important foundation of the intelligent transportation system, the Internet of Vehicles also has corresponding security issues while improving travel efficiency. In security management research, schemes based on trust value have been widely used, and the concept of trust is used to evaluate the reliability of nodes and messages. However, in the Internet of Vehicles environment, vehicle nodes move at high speed, the network topology is constantly changing, and the time for communication and message inspection between vehicle nodes is very short, which puts forward higher requirements for trust evaluation strategies. The existing vehicle node trust evaluation schemes can be generally divided into three categories: node-based ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/40H04L29/08
CPCH04W4/40H04L67/10H04L67/12
Inventor 谢鹏寿王玺强康永平杨昊煊王靓轩王一凡童鑫冯涛晏燕
Owner LANZHOU UNIVERSITY OF TECHNOLOGY
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