2014
Privacy-Preserving Distance Computation and Proximity Testing on Earth, Done Right
ŠEDĚNKA, Jaroslav a Paolo GASTIZákladní údaje
Originální název
Privacy-Preserving Distance Computation and Proximity Testing on Earth, Done Right
Autoři
ŠEDĚNKA, Jaroslav (203 Česká republika, garant, domácí) a Paolo GASTI (380 Itálie)
Vydání
New York, USA, Proceedings of the 9th ACM Symposium on Information, Computer and Communications Security, od s. 99-110, 12 s. 2014
Nakladatel
ACM
Další údaje
Jazyk
angličtina
Typ výsledku
Stať ve sborníku
Obor
10201 Computer sciences, information science, bioinformatics
Stát vydavatele
Japonsko
Utajení
není předmětem státního či obchodního tajemství
Forma vydání
elektronická verze "online"
Odkazy
Kód RIV
RIV/00216224:14310/14:00082022
Organizační jednotka
Přírodovědecká fakulta
ISBN
978-1-4503-2800-5
Klíčová slova anglicky
secuee multiparty computation; homomorphic encryption; privacy-preserving distance computation
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 25. 4. 2016 21:32, Mgr. Jaroslav Šeděnka, Ph.D.
Anotace
V originále
In recent years, the availability of GPS-enabled smartphones have made location-based services extremely popular. A multitude of applications rely on location information to provide a wide range of services. Location information is, however, extremely sensitive and can be easily abused. In this paper, we introduce the first protocols for secure computation of distance and for proximity testing over a sphere. Our secure distance protocols allow two parties, Alice and Bob, to determine their mutual distance without disclosing any additional information about their location. Through our secure proximity testing protocols, Alice only learns if Bob is in close proximity, i.e., within some arbitrary distance. Our techniques rely on three different representations of Earth, which provide different trade-os between accuracy and performance. We show, via experiments on a prototype implementation, that our protocols are practical on resource- constrained smartphone devices. Our distance computation protocols runs, in fact, in 54 to 78 ms on a commodity Android smartphone. Similarly, our proximity tests require between 1.2 s and 2.8 s on the same platform. The imprecision introduced by our protocols is very small, i.e., between 0.1% and 3% on average, depending on the distance.
Návaznosti
EE2.3.20.0051, projekt VaV |
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