Projects per year
Abstract
Proximity testing is at the core of sev-eral Location-Based Services (LBS) offered by, e.g., Uber, Facebook, and BlaBlaCar, as it determines closeness to a target. Unfortunately, modern LBS demand not only that clients disclose their locations in plain, but also to trust that the services will not abuse this information. These requirements are unfounded as there are ways to perform proximity testing without revealing one's location. We propose POLAR, a protocol that imple-ments privacy-preserving proximity testing for LBS. POLAR is suitable for clients running mo-bile devices, and relies on a careful combination of three well-established multiparty computation protocols and lightweight cryptography. A point of originality is the inclusion of two servers into the proximity testing. The servers may aid multiple pairs of clients and contribute towards enhancing privacy, improving efficiency, and reducing the run-ning time of clients' procedures.
Original language | English |
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Title of host publication | 2022 IEEE European Symposium on Security and Privacy Workshops (EuroSPW) |
Publisher | IEEE - Institute of Electrical and Electronics Engineers Inc. |
Pages | 504-513 |
Number of pages | 10 |
ISBN (Electronic) | 978-1-6654-9560-8 |
ISBN (Print) | 978-1-6654-9561-5 |
DOIs | |
Publication status | Published - 2022 |
Event | 7th IEEE European Symposium on Security and Privacy, EuroS&P 2022 - Genoa, Italy Duration: 2022 Jun 6 → 2022 Jun 10 |
Conference
Conference | 7th IEEE European Symposium on Security and Privacy, EuroS&P 2022 |
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Country/Territory | Italy |
City | Genoa |
Period | 2022/06/06 → 2022/06/10 |
Subject classification (UKÄ)
- Computer Science
Fingerprint
Dive into the research topics of 'Outsourcing MPC Precomputation for Location Privacy'. Together they form a unique fingerprint.Projects
- 1 Finished
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SMARTY: Säkra mjukvaruuppdateringar för den smarta staden
Hell, M., Magnusson, B., Gehrmann, C., Paladi, N., Karlsson, L., Sönnerup, J., Johnsson, B. A., Hedin, G., Nordahl, M., Pagnin, E., Kundu, R. & Åkesson, A.
Swedish Foundation for Strategic Research, SSF
2018/03/01 → 2023/02/28
Project: Research