Private Proximity Testing on Steroids: An NTRU-based Protocol

Constantinos Patsakis; Panayiotis Kotzanikolaou; M ́elanie Bouroche

Paper 2015/917

Private Proximity Testing on Steroids: An NTRU-based Protocol

Constantinos Patsakis, Panayiotis Kotzanikolaou, and M ́elanie Bouroche

Abstract

Nowadays, most smartphones come pre-equipped with location (GPS) sensing capabilities, allowing developers to create a wide variety of location-aware applications and services. While location awareness provides novel features and functionality, it opens the door to many privacy nightmares. In many occasions, however, users do not need to share their actual location, but to determine whether they are in proximity to others, which is practically one bit of information. Private proximity protocols allow this functionality without any further information leakage. In this work we introduce a novel protocol which is far more efficient than the current state of the art and bases its security on lattice-based cryptography.

Metadata

Available format(s): PDF
Category: Cryptographic protocols
Publication info: Published elsewhere. Minor revision. 11th International Workshop on Security and Trust Management
Keywords: Location privacy Cryptographic Protocols Private Equality Testing Location Services
Contact author(s): kpatsak @ gmail com
History: 2015-09-22: received
Short URL: https://ia.cr/2015/917
License: CC BY

BibTeX

@misc{cryptoeprint:2015/917,
      author = {Constantinos Patsakis and Panayiotis Kotzanikolaou and M ́elanie Bouroche},
      title = {Private Proximity Testing on Steroids: An {NTRU}-based Protocol},
      howpublished = {Cryptology {ePrint} Archive, Paper 2015/917},
      year = {2015},
      url = {https://eprint.iacr.org/2015/917}
}