Zero-Knowledge Proof-of-Location Protocols for Vehicle Subsidies and Taxation Compliance

TL;DR

This paper proposes a privacy-preserving Zero-Knowledge Proof-of-Location system enabling vehicles to verify compliance with location-based policies without revealing exact locations, supporting large-scale government programs.

Contribution

It introduces a novel ZK-PoL protocol tailored for vehicle location verification that preserves user privacy and is suitable for governmental subsidy and taxation enforcement.

Findings

Effective privacy preservation in location verification

Potential for large-scale governmental application

Promising results in protocol evaluation

Abstract

This paper introduces a new set of privacy-preserving mechanisms for verifying compliance with location-based policies for vehicle taxation, or for (electric) vehicle (EV) subsidies, using Zero-Knowledge Proofs (ZKPs). We present the design and evaluation of a Zero-Knowledge Proof-of-Location (ZK-PoL) system that ensures a vehicle's adherence to territorial driving requirements without disclosing specific location data, hence maintaining user privacy. Our findings suggest a promising approach to apply ZK-PoL protocols in large-scale governmental subsidy or taxation programs.