On Utilizing Prune-able Blockchains for Secure Message Dissemination in VANETs

Bowlin, Edgar Wallace; Khan, Mohammad S.

doi:10.1109/wf-iot51360.2021.9595965

Cited by 4 publications

(1 citation statement)

References 22 publications

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“…The amount of blocks on the chain is proportional to the security of the chain. In resourceconstrained environments, this unbounded length [53] can lead to storage and network issues, especially when nodes require a full download of the chain (bootstrapping). Pruning removes part of the chain to save resources as information becomes stale over time.…”

Section: Pruningmentioning

confidence: 99%

Challenges and Solutions for Vehicular Ad-Hoc Networks Based on Lightweight Blockchains

Bowlin,

Khan,

Bajracharya

et al. 2023

Vehicles

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Current research with Vehicular Ad-hoc Networks (VANETs) has focused on adapting an efficient consensus mechanism and reducing the blockchain size while maintaining security. Care must be taken when implementing blockchains within VANET applications to leverage the chains’ strengths while mitigating their weaknesses. These chains can serve as distributed ledgers that provide storage for more than financial transactions. The security provided by longer blockchains constitutes a nearly immutable, decentralized data structure that can store any data relevant to the applications. However, these chains must be adapted to the ad-hoc, resource-constrained environments found in VANETs. In the absence of abundant resources and reliable network connections, chain operation and maintenance must address the challenges presented by highly mobile nodes in novel ways, including situations such as emergency messaging that require real-time responses. Researchers have included different mechanisms to realize lightweight blockchains, such as adding reputation to existing consensus mechanisms, condensing the consensus committees, using geographical information, and monitoring a nodes behavior in attempts to adapt blockchains to these domains. This paper analyzes the challenges and gives solutions for these different mechanisms to realize lightweight blockchains for VANETs.

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Section: Pruningmentioning

confidence: 99%