Privacy-Preserving Blockchain-Based Systems for Car Sharing Leveraging Zero-Knowledge Protocols

Gudymenko, Ivan; Khalid, Asadullah; Siddiqui, Hira; Idrees, Mujtaba; ClauB, Sebastian; Luckow, André; Bolsinger, Manuel; Miehle, Daniel

doi:10.1109/dapps49028.2020.00014

Cited by 17 publications

(25 citation statements)

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“…At the same time, there are many manual and paper-based processes hindering efficient cross-organizational collaboration. To address these challenges, we evaluate tokenization and DLT regarding their usage across the entire automotive value chain, including supply chain management, logistics, and vehicle-related services (e.g., driver license verification or charging services; Garrido et al 2020;Gudymenko et al 2020).…”

Section: Tokenization In the Automotive Value Chainmentioning

confidence: 99%

Token Economy

et al. 2021

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Section: Tokenization In the Automotive Value Chainmentioning

confidence: 99%

Token Economy

et al. 2021

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“…The shared mobility market is already dominated by big players in various areas, whose system design is based on a centralized architecture. In Germany, ShareNow is the dominating company, with 4.2 million registered users by 2019 [4]. In [5], security related threats, which are mostly present in centralized systems are analyzed.…”

Section: Related Workmentioning

confidence: 99%

“…Besides the concepts analyzed in [6], four additional concept are considered as state-of-the-art for the given problem statement within the shared mobility ecosystem. In [4], two different concepts for a privacy-preserving blockchain-based system for car sharing are described, where both leveraging zero-knowledge protocols. Several parties, such as authorities and industry, are considered to be part of the ecosystem.…”

Section: Related Workmentioning

confidence: 99%

“…As a toolbox for zkSNARKS, ZoKrates was used [4]. The concept consists of three phases: initialization phase, attribute issuance, and attribute disclosure.…”

Section: Related Workmentioning

confidence: 99%

“…The last phase is for finally using the service and has two main objectives. First, the user is revised for being the real owner, and second, attributes such as validity of driving license are verified [4]. • Second concept described in [4] is leveraging the Hyperledger Indy framework.…”

Section: Related Workmentioning

confidence: 99%

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velink - A Blockchain-based Shared Mobility Platform for Private and Commercial Vehicles utilizing ERC-721 Tokens

Pirker

Fischer

Witschnig

et al. 2021

2021 IEEE 5th International Conference on Cryptography, Security and Privacy (CSP)

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Transportation of people and goods is important and crucial in the context of smart cities. The trend in regard of people's mobility is moving from privately owned vehicles towards shared mobility. This trend is even stronger in urban areas, where space for parking is limited, and the mobility is supported by the public transport system, which lowers the need for private vehicles. Several challenges and barriers of currently available solutions retard a massive growth of this mobility option, such as the trust problem, data monopolism, or intermediary costs.Decentralizing mobility management is a promising approach to solve the current problems of the mobility market, allowing to move towards a more usable internet of mobility and smart transportation. Leveraging blockchain technology allows to cut intermediary costs, by utilizing smart contracts. Important in this ecosystem is the proof of identity of participants in the blockchain network. To proof the possession of the claimed identity, the private key corresponding to the wallet address is utilized, and therefore essential to protect. In this paper, a blockchain-based shared mobility platform is proposed and a proof-of-concept is shown. First, current problems and stateof-the-art systems are analyzed. Then, a decentralized concept is built based on ERC-721 tokens, implemented in a smart contract, and augmented with a Hardware Security Module (HSM) to protect the confidential key material. Finally, the system is evaluated and compared against state-of-the-art solutions.

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