Internet of vehicles crowd sensing reputation management system and method based on blockchain

A crowd-sensing and blockchain technology, applied in transmission systems, digital transmission systems, mechanical equipment, etc., can solve problems such as the inability to quantify data quality fairly, not proposing privacy protection technology, and erroneous calculation results of reputation value, etc. The effect of avoiding single point of failure, resisting Sybil attacks, and low system latency

Active Publication Date: 2021-09-28
QINGDAO UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Objectively, this technology has some deficiencies: First, the technical system model is centralized and has a single point of failure problem, and it can resist collusion attacks and Sybil attacks only under some assumptions
Secondly, this technology does not consider the privacy issues of participating vehicles, and no relevant privacy protection technology is proposed
In addition, the existing technology only considers the authenticity of data when measuring data quality, which cannot guarantee fair quantification of data quality
Finally, the calculation and update of reputation in the existing technology is completed by the service platform, which may be tampered with or give wrong calculation results of reputation value, and there are certain security risks

Method used

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  • Internet of vehicles crowd sensing reputation management system and method based on blockchain
  • Internet of vehicles crowd sensing reputation management system and method based on blockchain
  • Internet of vehicles crowd sensing reputation management system and method based on blockchain

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A block chain-based car networking group intelligence perception reputation management system, such as figure 1 As shown, the system includes a blockchain network, fog servers, vehicles, and an anonymous revocation mechanism.

[0043] The blockchain network refers to the alliance blockchain composed of fog servers in different traffic areas, which mainly realizes the function of updating the reputation through smart contracts. The fog server acts as a consensus node in the PoA-based consortium blockchain, which is used to verify and package the newly added blockchain to maintain the blockchain network, and is responsible for task release, data reception and data quality quantification; in addition, the local The fog server maintains a reputation list (R-list), which includes the vehicle's identity and reputation. Vehicles are divided into two categories: uploaders and reporters. The uploaders will always generate data reports on traffic information in the Internet of V...

Embodiment 2

[0045] A privacy-protected Internet of Vehicles crowd-sensing reputation management method based on blockchain, the method adopts the system of Embodiment 1, and specifically includes the following steps:

[0046] Step 1. Anonymous authentication; when the vehicle performs the task of group intelligence sensing, the submitted data should be authenticated by the fog server. The fog server first releases the security parameters, and the registered vehicle sets the public key and private key of the traceable ring signature through Pedersen commitment , to achieve anonymous authentication; the local fog server maintains a reputation list, which is used for ring selection for ring signature generation, and any submitted data will be authenticated anonymously. The detailed steps are as follows:

[0047] ①System settings: Fog server F runs Setup(1 λ ) algorithm to generate public parameters para={G, q, g, h, ch, H, H'}. G is a group of order q>2λ, where λ is a security parameter. ...

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Abstract

The invention belongs to the technical field of Internet of Vehicles crowd sensing. Aiming at the privacy security problem of an existing mobile crowd sensing reputation model, the invention provides an Internet of Vehicles crowd sensing reputation management system and method based on blockchain, and the system and method enable a malicious vehicle not to forge an identity through employing an identity verification technology. The privacy information of the vehicle is protected by using a lightweight traceable ring signature algorithm, the identity of the vehicle can be tracked to complete reputation updating and cancel the identity of a malicious vehicle, and conditional anonymity is realized; the data quality is measured through two factors of data authenticity and time, and then corresponding reputation updating is carried out according to the data quality.

Description

technical field [0001] The invention belongs to the technology in the field of group intelligence perception of the Internet of Vehicles, and specifically relates to a reputation management system and method for group intelligence perception of the Internet of Vehicles based on a block chain. Background technique [0002] As urban populations grow, the number of cars starts to increase, which can lead to congestion on roads and parking lots. Vehicle-connected crowd sensing (VCS) is an emerging perception paradigm in which vehicles use on-board sensors to collect and share real-time traffic information, which can help improve the user's driving experience and provide other services to drivers on the road without the need for Build additional dedicated infrastructure. Based on the advantages of group intelligence sensing in the Internet of Vehicles, some practical VCS applications have emerged. In VCS applications, reputation systems are used to maintain and update reputatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04L9/32H04L29/08
CPCH04L63/0421H04L9/3255H04L9/3221H04L63/1441H04L63/08H04L67/12H04L2209/42H04L9/50Y02T10/40
Inventor 王玲玲曹中达赵雪芹
Owner QINGDAO UNIV OF SCI & TECH
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