Cyber-Physical Transactions: A Method for Securing VANETs with Blockchains


Blockchains are used to perform state agreement in a distributed system. However, there is no way to validate off-chain actions, such as physical actions, in the current architecture. This paper proposes a new blockchain architecture which features locally physically-verified transactions. From this new architecture, this paper presents a protocol for securing vehicular ad-hoc networks (VANETs) without the need to constantly communicate with roadside units (RSUs) or other infrastructure components. However, issues such as privacy in VANETs and Blockchains are left to future work. This paper shows the results from simulations of the current system in order to note its weaknesses. In particular, this paper can be used as a benchmark to show that ideas such as Proof-of-Work and full blockchain validation cannot work in a purely peer-to-peer VANET.

Meeting Name

IEEE 23rd Pacific Rim International Symposium on Dependable Computing, PRDC 2018 (2018: Dec. 4-7, Taipei, Taiwan)


Computer Science

Research Center/Lab(s)

Intelligent Systems Center


This work was supported in part by the Missouri University of Science and Technology's Chancellor's Distinguished Fellowship and a grant from the US National Science Foundation under award CNS-1505610.

Keywords and Phrases

Architecture; Blockchain; Cyber Physical System; Embedded systems; Network architecture; Network security; Cyber physicals; Distributed systems; Peer to peer; Physical action; Physically verifiable; Proof of work; Roadside units; Vehicular Adhoc Networks (VANETs); Vehicular ad hoc networks; Rank1; Cyber-physical systems

International Standard Book Number (ISBN)


International Standard Serial Number (ISSN)


Document Type

Article - Conference proceedings

Document Version


File Type





© 2018 IEEE Computer Society, All rights reserved.

Publication Date

01 Dec 2018