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A lightweight trust assessment method for Internet of Vehicles

A car networking, lightweight technology, applied in the field of car networking security, can solve problems such as large time and bandwidth consumption

Active Publication Date: 2020-12-11
JINAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This model requires trusters to collect trust recommendation information about trustees, which usually results in large time and bandwidth consumption

Method used

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  • A lightweight trust assessment method for Internet of Vehicles
  • A lightweight trust assessment method for Internet of Vehicles
  • A lightweight trust assessment method for Internet of Vehicles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0059] Such as Figure 1-2 As shown, this embodiment does not contain a trust center and a roadside unit, but only consists of a large number of common nodes (ie, vehicles), and communicates with each other through a wireless ad hoc network. The role of each node is one of trustee, trustee or prover, and will be converted in different evaluation stages.

[0060] Step S1. When the previous interaction between nodes A and B ends, B as the prover generates a trust certificate TC(B,A) for A as the trustee based on the interaction experience. The specific format is:

[0061] TC(B,A)=(ID(B),ID(A),RT(B,A),WG(B),TS(B,A),DS(B,A)) (1)

[0062] Among them, ID(B) and ID(A) respectively represent the unique identifiers of the prover B and the trustee A; RT(B,A) represents the evaluation value vector, and the specific format is:

[0063] RT(B,A)=(RT(B,A,1),RT(B,A,2),...,RT(B,A,n)) (2)

[0064] where n represents the number of trust aspects, RT(B,A,i)(i∈[1,n]) represents the evaluation va...

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Abstract

The invention discloses a lightweight Internet of vehicles trust evaluation method. The method specifically comprises the following steps that: S1, when previous interaction between nodes is finished,two interaction sides generate trust certificates including own digital signatures for the opposite side according to interaction experience, and transmit the trust certificates to the opposite side;S2, the two interaction sides verify signature information after receiving new trust certificates, and update local storage in order to save most favorable eta trust certificates at most, wherein (eta is an element of a set Z<+>) is a system parameter; S3, at the start of potential interaction, two potential interaction sides transmit locally-stored trust certificates to the opposite side in order to prove own trustworthiness; and S4, the two potential interaction sides verify the authenticity of the trust certificates through digital signature information, export the trust value of the opposite side, and determine whether to agree to interact with the opposite side or not, wherein the interaction is implemented only when the two sides agree to interact. The lightweight Internet of vehicles trust evaluation method is independent of a trust center and a roadside unit, and conforms to the large scale and distribution features of the Internet of vehicles more.

Description

technical field [0001] The invention relates to the technical field of Internet of Vehicles security, in particular to a lightweight trust evaluation method for Internet of Vehicles. Background technique [0002] At present, traffic accidents, road congestion and environmental pollution have become key issues faced by cities around the world, and the Internet of Vehicles, as the main application of the Internet of Things in the automotive industry and the core component of the intelligent transportation system, plays a vital role in urban road traffic. important role. [0003] However, due to its large-scale, open, distributed, sparse and highly dynamic characteristics, the Internet of Vehicles is vulnerable to malicious behavior and attacks. Security and reliability have gradually become the bottleneck restricting the further development of the Internet of Vehicles, and are related to the Whether networking can be applied in real road environment. Most of the existing sch...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04L29/08H04L12/24H04L9/32
CPCH04L9/3247H04L41/14H04L63/20H04L67/12
Inventor 刘志全翁健马建峰李盈兰奕明魏凯敏冯丙文
Owner JINAN UNIVERSITY
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