LOCA: A Location-Oblivious Cellular Architecture
summary
LOCA claims to hide user location from operators while still delivering identity-based services by splitting duties between an MVNO-style broker and infrastructure operators. It implements unlinkable tokens (blind signatures) so brokers can verify an anonymous operator, and provable aggregate claiming (zero-knowledge proofs) so operators get paid without revealing which sessions they served. A prototype built on CellBricks/Magma and tested in wide-area experiments shows provable privacy under a semi-honest, non-colluding model and performance that scales to realistic deployment sizes.
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chapters (12)
- 0:00Intro
- 0:32Lack of location privacy
- 1:24Prior approach (PGPP)
- 2:23Dilemma
- 2:58A new approach via MVNO
- 5:06LOCA: threat model & incentives
- 6:13LOCA: Challenges
- 7:31LOCA: Mechanisms
- 8:12Verifying O's legitimacy Challenge
- 11:36Settling payments
- 14:24LOCA: privacy, evaluation & future work
- 15:31LOCA: Conclusion
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