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Modeling Leakage of Ephemeral Secrets in Tripartite/Group Key Exchange

Manulis, M, Suzuki, K and Ustaoglu, B (2013) Modeling Leakage of Ephemeral Secrets in Tripartite/Group Key Exchange IEICE Transactions, 96-A, 1. pp. 101-110.

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Abstract

We propose a security model, referred as g-eCK model, for group key exchange that captures essentially all non-trivial leakage of static and ephemeral secret keys of participants, i.e., group key exchange version of extended Canetti-Krawczyk (eCK) model. Moreover, we propose the first one-round tripartite key exchange (3KE) protocol secure in the g-eCK model under the gap Bilinear Diffie-Hellman (gap BDH) assumption and in the random oracle model.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Computing Science
Authors :
AuthorsEmailORCID
Manulis, MUNSPECIFIEDUNSPECIFIED
Suzuki, KUNSPECIFIEDUNSPECIFIED
Ustaoglu, BUNSPECIFIEDUNSPECIFIED
Date : 2013
Additional Information : Copyright 2013 The Institute of Electronics,Information and Communication Engineers.
Depositing User : Symplectic Elements
Date Deposited : 18 Oct 2013 09:26
Last Modified : 09 Jun 2014 13:37
URI: http://epubs.surrey.ac.uk/id/eprint/804094

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