Commitment-based device-pairing protocol with synchronized drawings and comparison metrics

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Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Date
2015
Major/Subject
Mcode
Degree programme
Language
en
Pages
205-219
Series
PERVASIVE AND MOBILE COMPUTING, Volume 16, issue Part B
Abstract
This article presents a new method for pairing devices securely. The commitment-based authentication uses a fuzzy secret that the devices only know approximately. Its novel feature is time-based opening of commitments in a single round. We also introduce a new source for the fuzzy secret: synchronized drawing with two fingers of the same hand on two touch screens or surfaces. The drawings are encoded as strings and compared with an edit-distance metric. A prototype implementation of this surprisingly simple and natural pairing mechanism shows that it accurately differentiates between true positives and man-in-the-middle attackers.
Description
VK: Secure Systems; Aura, T.
Keywords
Security, Device pairing, Commitment protocol, Edit distance
Other note
Citation
Antikainen , M , Sethi , M , Matetic , S & Aura , T 2015 , ' Commitment-based device-pairing protocol with synchronized drawings and comparison metrics ' , Pervasive and Mobile Computing , vol. 16 , no. Part B , pp. 205-219 . https://doi.org/10.1016/j.pmcj.2014.10.006