BARS: A Blockchain-Based Anonymous Reputation System for Trust Management in VANETs

Lu, Zhaojun; Wang, Qian; Qu, Gang; Liu, Zhenglin

doi:10.1109/trustcom/bigdatase.2018.00025

Cited by 209 publications

(154 citation statements)

References 14 publications

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“…In [23], a blockchain-based anonymous reputation system is presented. The following main actors are part of the system; the Certificate Authority (CA), the Law Enforcement Authority (LEA) and the vehicles.…”

Section: Trust and Reputation In Vehicular Systemsmentioning

confidence: 99%

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Blockchain-based Reputation for Intelligent Transportation Systems

Hîrţan

Dobre

González–Vélez

2020

Sensors

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A disruptive technology often used in finance, Internet of Things (IoT) and healthcare, blockchain can reach consensus within a decentralised network—potentially composed of large amounts of unreliable nodes—and to permanently and irreversibly store data in a tamper-proof manner. In this paper, we present a reputation system for Intelligent Transportation Systems (ITS). It considers the users interested in traffic information as the main actors of the architecture. They securely share their data which are collectively validated by other users. Users can choose to employ either such crowd-sourced validated data or data generated by the system to travel between two locations. The data saved is reliable, based on the providers’ reputation and cannot be modified. We present results with a simulation for three cities: San Francisco, Rome and Beijing. We have demonstrated the impact of malicious attacks as the average speed decreased if erroneous information was stored in the blockchain as an implemented routing algorithm guides the honest cars on other free routes, and thus crowds other intersections.

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Section: Trust and Reputation In Vehicular Systemsmentioning

confidence: 99%

“…Table 1 shows a comparative analysis following the advantages and disadvantages of the proposed solutions using the blockchain technology in reputation systems implemented on ITS. [21] no no yes [20] no no yes [22] no no yes [23] no yes no [24] yes yes no [25] yes no no OUR PROPOSAL yes yes yes…”

Section: Contributionmentioning

confidence: 99%

Blockchain-based Reputation for Intelligent Transportation Systems

Hîrţan

Dobre

González–Vélez

2020

Sensors

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“…In recent studies, [14] proposed a blockchain-based anonymous reputation system (BARS) to break the likability between real identities and public keys to preserve privacy. The work by [15] proposed a trust-based dueling deep reinforcement learning approach (T-DDRL) for communication between vehicles; it deployed a dueling network architecture into a logically centralized controller of software-defined networking (SDN).…”

Section: Related Workmentioning

confidence: 99%

An evaluation of reputation with regard to the opportunistic forwarding of messages in VANETs

Santos

Moreira

2019

J Wireless Com Network

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A mechanism for trust management is required in vehicular ad hoc networks (VANETs) to record the behavior of the vehicles. However, it is a complex matter to follow the historical behavior of the vehicles, since their identities are protected by pseudonyms, which are constantly changing to prevent tracking. In our proposal based on a centralized reputation system, being a vehicle well behaved in the opportunistic forwarding of messages comprises two components: reputation for messages creation and for messages forwarding. The vehicles can forward messages at a given time, and the types of messages that are sent in each transaction may require a vehicle reputation score. In this case, the decision of a vehicle to accept a message is based on the reputation of the sender vehicle that created or forwarded the message. We describe the reputation system through the first three levels of a functional ontology and finite state machines. We evaluate the system by means of simulations in an urban scenario to obtain the reputations of forwarding and generation of messages, varying the number of misbehaving vehicles. It was found that a centralized reputation scheme reflects the behavior of the vehicles insofar as feedback is delivered to the reputation server.

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“…Blockchain, owing to its characteristics, has been integrated into the IoT to enhance security, auditability, reliability, and inconspicuousness. Traditional IoT architectures have several disadvantages or restrictions, such as the utilization of resources and its centralized structure [4][5][6][7][8][9][10][11][12][13]. The merits of the blockchain technology solve some of these issues.…”

Section: Introductionmentioning

confidence: 99%

Enhancement of Security and Handling the Inconspicuousness in IoT Using a Simple Size Extensible Blockchain

Raja¹,

Nayyar

Sanjeevikumar

et al. 2020

Energies

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Blockchain technology is increasingly used worldwide to enhance the performance and profit of any environment through its defining characteristics, such as security, auditability, immutability, and inconspicuousness. Owing to these characteristics, the blockchain can be used in various non-financial operations of some domains, such as the Internet of Things (IoT) and distributed computing. However, implementing blockchain technology in IoT is not always a feasible solution because blockchain deployment is costly, it has limited extensibility and provides irregular bandwidth and latency. In this regard, a simple size extensible (SSE) blockchain has been proposed to provide an optimal solution for IoT environments by satisfying the needs of the IoT environment as well as ensuring end-to-end security. The implementation of the proposed blockchain develops an overlay network to obtain a distributed environment where the blockchain is handled by the resources present therein. Two novel algorithms were introduced into the proposed system to minimize the irregularity and latency on one hand, and to maximize the throughput of the system on the other. The shared-time depending agreement algorithm (STD) minimizes the irregularity in the extraction operation and latency. The other, the shared throughput administration algorithm (STA) justifies the overall collection of the transmission load in the network and maintains the performance of the blockchain. The proposed system was applied to smart home IoT appliances to test the performance of the proposed system. The experimental results show that the proposed blockchain system minimizes nearly 70% of the data irregularity, latency, and furthermore, 30% of the blockchain extensibility is maximized as compared to the existing systems.

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BARS: A Blockchain-Based Anonymous Reputation System for Trust Management in VANETs

Cited by 209 publications

References 14 publications

Blockchain-based Reputation for Intelligent Transportation Systems

Blockchain-based Reputation for Intelligent Transportation Systems

An evaluation of reputation with regard to the opportunistic forwarding of messages in VANETs

Enhancement of Security and Handling the Inconspicuousness in IoT Using a Simple Size Extensible Blockchain

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