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The fairy-ring dance : password authenticated key exchange in a group
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Hao, Feng, Yi, Xun, Chen, Liqun and Shahandashti, Siamak Fayyaz (2015) The fairy-ring dance : password authenticated key exchange in a group. In: IoTPTS '15 , Singapore, 14 Apr 2015. Published in: Proceedings of the 1st ACM Workshop on IoT Privacy, Trust, and Security pp. 27-34. ISBN 9781450334495 . doi:10.1145/2732209.2732212
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Official URL: http://dx.doi.org/10.1145/2732209.2732212
Abstract
In this paper, we study Password Authenticated Key Exchange (PAKE) in a group. First, we present a generic "fairy-ring dance" construction that transforms any secure two-party PAKE scheme to a group PAKE protocol while preserving the round efficiency in the optimal way. Based on this generic construction, we present two concrete instantiations based on using SPEKE and J-PAKE as the underlying PAKE primitives respectively. The first protocol, called SPEKE+, accomplishes authenticated key exchange in a group with explicit key confirmation in just two rounds. This is more round-efficient than any existing group PAKE protocols in the literature. The second protocol, called J-PAKE+, requires one more round than SPEKE+, but is computationally faster. Finally, we present full implementations of SPEKE+ and J-PAKE+ with detailed performance measurements. Our experiments suggest that both protocols are feasible for practical applications in which the group size may vary from three to several dozen. This makes them useful, as we believe, for a wide range of applications - e.g., to bootstrap secure communication among a group of smart devices in the Internet of Things (IoT).
Item Type: | Conference Item (Paper) | ||||
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Computer Science | ||||
Journal or Publication Title: | Proceedings of the 1st ACM Workshop on IoT Privacy, Trust, and Security | ||||
Publisher: | ACM | ||||
ISBN: | 9781450334495 | ||||
Book Title: | Proceedings of the 1st ACM Workshop on IoT Privacy, Trust, and Security - IoTPTS '15 | ||||
Official Date: | 2015 | ||||
Dates: |
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Page Range: | pp. 27-34 | ||||
DOI: | 10.1145/2732209.2732212 | ||||
Status: | Not Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access | ||||
Conference Paper Type: | Paper | ||||
Title of Event: | IoTPTS '15 | ||||
Type of Event: | Conference | ||||
Location of Event: | Singapore | ||||
Date(s) of Event: | 14 Apr 2015 |
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