Abstract

The blockchain‐based management system has been regarded as a novel way to improve the efficiency and safety of Vehicular Ad Hoc Networks (VANETs). A blockchain‐based scheme’s performance depends on blockchain nodes’ computing power composed from the road‐side unit (RSU). However, the throughput of blockchain‐based application in VANETs is limited by the network bandwidth. A single blockchain cannot record large‐scale VANETs’ data. In this paper, we design an atomic cross‐chain swap‐based management system (ACSMS) to boost the scalability of blockchain‐based application in VANETs. The blockchain‐based public‐key encryption with keyword search is further introduced to protect user privacy. The analysis shows that ACSMS achieves cross‐chain swap without loss of CAV security privacy. The simulation results show that our method can realize multiple blockchain‐based applications in VANETs.

Highlights

  • Nowadays, connected autonomous vehicles (CAVs) equip with the on-board unit (OBU) that enables vehicle ad hoc networks (VANETs [1]) to be formed

  • We develop atomic cross-chain swap-based management system (ACSMS) to connect multiple blockchain systems while maintaining the property of trust and integrity built by individual blockchains

  • We proposed the ACSMS to boost the scalability of blockchain-based applications in Vehicular Ad Hoc Networks (VANETs)

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Summary

Introduction

Nowadays, connected autonomous vehicles (CAVs) equip with the on-board unit (OBU) that enables vehicle ad hoc networks (VANETs [1]) to be formed. Blockchain-based VANET schemes have been designed to provide security key transfers [12] and decentralized trust management [13]. Toward enhancing the flexibility of the blockchain-based scheme in VANETs, we integrate multiple blockchain-based. We develop ACSMS to connect multiple blockchain systems while maintaining the property of trust and integrity built by individual blockchains. The ACSMS can enhance interoperability between chains (ii) We introduce the blockchain-based PEKS [18] as the data-sharing scheme. The blockchain-based PEKS support verifies of ciphertexts (iii) we attempt to integrate the blockchainbased PEKS, BKM, and BTM into ACSMS, such that CAVs could use multiple blockchain-based applications with a single blockchain account.

Related Work
An Atomic Cross-Chain Swap-Based Management System
H3ðCtsÞ x
Security Analysis
Performance Evaluation
Conclusion
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