Abstract

Currently, “connected cars” are being actively designed over smart cars and autonomous cars, to establish a two-way communication network between the vehicle and all infrastructure. Additionally, because vehicle black boxes are becoming more common, specific processes for secure and efficient data sharing and transaction via vehicle networks must be developed. In this paper, we propose a Blockchain-based vehicle data marketplace platform model, along with a data sharing scheme, using Blockchain-based data-owner-based attribute-based encryption (DO-ABE). The proposed model achieves the basic requirements such as data confidentiality, integrity, and privacy. The proposed system securely and effectively handles large-capacity and privacy-sensitive black box video data by storing the metadata on Blockchain (on-chain) and encrypted raw data on off-chain (external) storage, and adopting consortium Blockchain. Furthermore, the data owners of the proposed model can control their own data by applying the Blockchain-based DO-ABE and owner-defined access control lists.

Highlights

  • The fusion of vehicles and information technology has led to the creation of smart cars [1].Smart cars use a global positioning system (GPS) and geographic information system to determine their current position

  • The type in the transaction header identifies the information contained in the transaction; transactions are divided into connected-car transaction, data-owner-based attribute-based encryption (DO-attribute-based encryption (ABE)) transaction, and trading transaction

  • We presented a detailed model and process for secure and fast data sharing and transaction in vehicle networks using a Blockchain based data owner (DO)-ABE

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Summary

Introduction

The fusion of vehicles and information technology has led to the creation of smart cars [1]. To realize a connected car, a specific process for secure and efficient data sharing and transaction in a vehicle network must be presented. A blockchain-based vehicle data sharing service can resolve the limitations of the existing centralized cloud-based model. To share and trade vehicle data using a Blockchain rather than a centralized model such as the cloud, the following requirements must be met:. The proposed system securely and effectively handles large-capacity and privacy-sensitive black box video data by storing the metadata on Blockchain (on-chain) and encrypted raw data on off-chain (external) storage, and adopting consortium. The data owners of the proposed model can control their own data by applying the Blockchain-based DO-ABE and owner-defined access control lists (ACLs).

Connected Cars
Consortium Blockchain
DO-ABE
Off-Chain Technology
Blockchain-Based Connected Car Data Sharing Model
Assumption and Trust Model
System Participants
Marketplace Platform
Type of the Adopted Blockchain and Consensus Mechanism
Block and Transaction Structure
Smart Contracts and Private Contracts
Data Sharing Scheme Using Blockchain Based DO-ABE
Analysis and Discussion
Conclusions
Full Text
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