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Distributed Blockchain-Based Message Authentication Scheme for Connected Vehicles

机译：基于区块链的基于区块链的消息认证方案用于连接的车辆

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Vehicular ad-hoc networks (VANETs) have several security issues such as privacy preservation, secure authentication, and system reliability. In the VANET, a vehicle communicates with other vehicles or infrastructures using broadcasting messages. These messages contain not only normal traffic information, but also identification information of sender. In general, the identification information remains encrypted to ensure privacy. However, the conventional centralized system can decrypt the identification information using private information of the sender vehicle. As a result, the central server can often be targeted by adversaries. We propose a message authentication scheme for anonymity and decentralization of information using blockchain technology. Here, we introduce public-private key and message authentication code (MAC) for secure authentication. In this paper, we adopt consensus algorithms for composing blockchain system such as the proof of work (PoW) and Practical Byzantine Fault Tolerance (PBFT) into the proposed authentication process. Finally, we demonstrate that the proposed method is secure from the attacks which include impersonation from internal attacker as well as typical attacks.
机译：车辆ad-hoc网络（VANET）具有若干安全问题，如隐私保存，安全认证和系统可靠性。在Vanet中，车辆使用广播消息与其他车辆或基础设施通信。这些消息不仅包含正常的流量信息，还包含发件人的标识信息。通常，识别信息仍然被加密以确保隐私。然而，传统的集中系统可以使用发送者车辆的私人信息来解密识别信息。结果，中央服务器通常可以由对手瞄准。我们提出了一种消息认证方案，用于使用区块链技术的匿名和分散信息。在这里，我们为安全身份验证介绍公钥键和消息认证码（Mac）。在本文中，我们采用共识算法来构建区块链系统，例如工作证明（POW）和实际拜占庭容错（PBFT）进入所提出的认证过程。最后，我们证明了所提出的方法是从内部攻击者的冒犯和典型攻击的攻击中获得的安全。

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