Welcome to the resource topic for 2008/344
Title:
Authenticated Key Exchange Secure under the Computational Diffie-Hellman Assumption
Authors: Jooyoung Lee, Je Hong Park
Abstract:In this paper, we present a new authenticated key exchange(AKE) protocol and prove its security under the random oracle assumption and the computational Diffie-Hellman(CDH) assumption. In the extended Canetti-Krawczyk model, there has been no known AKE protocol based on the CDH assumption. Our protocol, called NAXOS+, is obtained by slightly modifying the NAXOS protocol proposed by LaMacchia, Lauter and Mityagin. We establish a formal security proof of NAXOS+ in the extended Canetti-Krawczyk model using as a main tool the trapdoor test presented by Cash, Kiltz and Shoup.
ePrint: https://eprint.iacr.org/2008/344
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