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Resilient privacy protection for location-based services through decentralization
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- Jin, Hongyu (author)
- KTH,Nätverk och systemteknik,Networked Systems Security Group
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- Papadimitratos, Panagiotis (author)
- KTH,Nätverk och systemteknik,Networked Systems Security Group
- (creator_code:org_t)
- 2017-07-18
- 2017
- English.
- In: Proceedings of the 10th ACM Conference on Security and Privacy in Wireless and Mobile Networks, WiSec 2017. - New York, NY, USA : Association for Computing Machinery (ACM). - 9781450350846 ; , s. 253-258
- Conference paper (peer-reviewed)
Abstract
Subject headings
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- Location-based Services (LBSs) provide valuable features but can also reveal sensitive user information. Decentralized privacy protection removes the need for a so-called anonymizer, but relying on peers is a double-edged sword: adversaries could mislead with fictitious responses or even collude to compromise their peers' privacy. We address here exactly this problem: we strengthen the decentralized LBS privacy approach, securing peer-to-peer (P2P) interactions. Our scheme can provide precise timely P2P responses by passing proactively cached Point of Interest (POI) information. It reduces the exposure both to the honest-but-curious LBS servers and peer nodes. Our scheme allows P2P responses to be validated with very low fraction of queries affected even if a significant fraction of nodes are compromised. The exposure can be kept very low even if the LBS server or a large set of colluding curious nodes collude with curious identity management entities.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Kommunikationssystem (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Communication Systems (hsv//eng)
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