ePRIVO: An Enhanced PRIvacy-preserVing Opportunistic Routing Protocol for Vehicular Delay-Tolerant Networks

Magaia, Naércio; Borrego, Carlos; Pereira, Paulo Rogério; Correia, Miguel

doi:10.1109/tvt.2018.2870113

Cited by 20 publications

(20 citation statements)

References 34 publications

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“…Centralized authority is used to generate secret keys, update the interests of drivers and revoke keys of interests [160] Fully homomorphic encryption Tendering mechanism Decide victorious vehicles and their rewards The cloud server and selected vehicles collaborate to implement announced tasks [161] Boneh's algorithm [25] Double auction scheme Solve the problem of maximizing social welfare This scheme can be executed whenever there exist both purchasers and sellers [162] Paillier Opportunistic routing protocol Generate and anonymize the neighborhood graph, routing algorithm Edges are regarded as the relationship of two neighboring vehicles…”

Section: Basic Operationsmentioning

confidence: 99%

A Survey on Secure Computation Based on Homomorphic Encryption in Vehicular Ad Hoc Networks

Sun

Zhang

et al. 2020

Sensors

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In vehicular ad hoc networks (VANETs), the security and privacy of vehicle data are core issues. In order to analyze vehicle data, they need to be computed. Encryption is a common method to guarantee the security of vehicle data in the process of data dissemination and computation. However, encrypted vehicle data cannot be analyzed easily and flexibly. Because homomorphic encryption supports computations of the ciphertext, it can completely solve this problem. In this paper, we provide a comprehensive survey of secure computation based on homomorphic encryption in VANETs. We first describe the related definitions and the current state of homomorphic encryption. Next, we present the framework, communication domains, wireless access technologies and cyber-security issues of VANETs. Then, we describe the state of the art of secure basic operations, data aggregation, data query and other data computation in VANETs. Finally, several challenges and open issues are discussed for future research.

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Section: Basic Operationsmentioning

confidence: 99%

A Survey on Secure Computation Based on Homomorphic Encryption in Vehicular Ad Hoc Networks

Sun

Zhang

et al. 2020

Sensors

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“…One of the critical ingredients in their approach is the amount of information that each node is willing to share, i.e., there is a trade off between the amount of shared information and the performance of the routing protocol. ePRIVO [32] proposes an enhanced and modified version of PRIVO, targeted towards the Vehicular Delay Tolerant Network (VDTN) domain. Its goal is to enable vehicles to take routing decisions while keeping their information private.…”

Section: Related Workmentioning

confidence: 99%

Secure and Anonymous Communications Over Delay Tolerant Networks

Bakiras

Troja

et al. 2020

IEEE Access

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Today's society has a fundamental need for security and anonymity. Well suited, real-life scenarios such as whistleblower reports, intelligence service operations, and the ability to communicate within oppressive governments, call for such fundamental needs. The contribution and focus of this paper is the study of anonymous communications in the context of Delay Tolerant Networks (DTNs). Current literature achieves anonymity via mechanisms that are built around the onion routing paradigm which, unfortunately, is vulnerable to malicious nodes. Instead, our work introduces a novel message forwarding algorithm that delivers messages, from source to destination, via a random walk process. As such, our protocol does not list the intermediate nodes along the route's path and, therefore, enhances significantly the anonymity of the underlying communications. We propose two different approaches for encrypting the exchanged messages. The first one is based solely on public key cryptosystems and is, thus, suitable for short, SMS-style messaging. The second one is a hybrid solution that combines both public and symmetric key cryptography and is targeted towards large multimedia messages, such as images or video. Through extensive simulation experiments, we show that our proposed anonymous routing protocol achieves high message delivery rates, while using modest computational resources on the mobile devices. INDEX TERMS Anonymous communications, confidentiality, delay tolerant networks, random walks.

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“…Performance of routing protocols is being compared in this paper [30] while considering different parameters like time to live, distance (long and short) and a number of hops. Taking the routing decisions while maintaining privacy is considered in this paper [31] routing protocol named ePRIVO. It ensures the link privacy, binary anonymization, and neighborhood randomization, and attribute privacy by means of the Paillier homomorphic encryption scheme.…”

Section: Literature Reviewmentioning

confidence: 99%

Connection Time Estimation between Nodes in VDTN

Ali¹,

Shakil²,

Rafique³

et al. 2019

ijacsa

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Vehicular delay tolerant network (VDTN) is a widely used communication standard for the scenarios where no end to end path is available between nodes. Data is sent from one node to another node using routing protocols of VDTN. These routing protocols use different decision metrics. Based on these metrics, it is chosen whether to send data to connected node or find another suitable candidate. These metrices are Time to live (TTL), geographical information, destination utility, relay utility, meeting prediction, total and remaining buffer size and many other. Different routing protocols use a different combination of metrics. In this paper, a metric called "estimation-time" is introduced. The "estimation-time" is assessed at the encounter of two nodes. Nodes may decide based on that whether to send data or not. This metric can be used in routing decisions. The simulations results are above 88% which proves "estimationtime" metric is calculated correctly.

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ePRIVO: An Enhanced PRIvacy-preserVing Opportunistic Routing Protocol for Vehicular Delay-Tolerant Networks

Cited by 20 publications

References 34 publications

A Survey on Secure Computation Based on Homomorphic Encryption in Vehicular Ad Hoc Networks

A Survey on Secure Computation Based on Homomorphic Encryption in Vehicular Ad Hoc Networks

Secure and Anonymous Communications Over Delay Tolerant Networks

Connection Time Estimation between Nodes in VDTN

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