Smartphones as Practical and Secure Location Verification Tokens for Payments
Download: Paper (PDF)
Date: 22 Feb 2014
Document Type: Briefing Papers
Additional Documents: Slides
Associated Event: NDSS Symposium 2014
Trustworthy location statements from a smartphone trusted execution environment (TEE) enable secure second-factor authentication for point-of-sale payments. We provide two user device enrollment solutions that are resistant against powerful but realistic adversaries. A city-wide field study shows the applicability of the proposed second-factor authentication mechanism.