An Anonymous On-Street Parking Authentication Scheme via Zero-Knowledge Set Membership Proof
Jerry Chien Lin Ho, Chi-Yi Lin

TL;DR
This paper presents a privacy-preserving on-street parking authentication scheme using zero-knowledge set membership proofs, ensuring user anonymity and preventing data leakage even if the system is compromised.
Contribution
It introduces a novel zero-knowledge proof-based authentication method for smart city parking systems that maintains user privacy and resists data profiling attacks.
Findings
User anonymity is preserved during authentication.
The system prevents mass-query and profiling of user traces.
Authentication legitimacy is verifiable without revealing user identity.
Abstract
The amount of information generated grows as more and more sensor and IoT devices are deployed in smart cities. It is of utmost importance for us to consider the privacy data leakage and compromised identity from both outside adversaries and inside abuse of data access privilege. The security assumption of the system should not solely rely on the fact that permission and access control were being implemented correctly. Quite the contrary, a system can be designed in a way that user's identity data and usage traces are not leaked even if the system had been compromised. Based upon our previous on-street parking system utilizing Bluetooth Low Energy (BLE) beacons, we applied a cryptographic primitive called zero-knowledge proof to our authentication system. A commitment scheme and Merkle tree is combined in the setup to achieve zero-knowledge set membership proof. Doing so, the user is…
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Taxonomy
TopicsCryptography and Data Security · Vehicular Ad Hoc Networks (VANETs) · Privacy-Preserving Technologies in Data
