Poster (Scientific congresses, symposiums and conference proceedings)
An Offline Dictionary Attack Against zkPAKE Protocol
Lopez Becerra, José Miguel; Ryan, Peter; Sala, Petra et al.
2018WiSec2018
 

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Keywords :
Password Authenticated Key Exchange; zkPAKE; Offlne Dictionary Attack
Abstract :
[en] Password Authenticated Key Exchange (PAKE) allows a user to establish a strong cryptographic key with a server, using only knowledge of a pre-shared password. One of the basic security requirements of PAKE is to prevent o ine dictionary attacks. In this paper, we revisit zkPAKE, an augmented PAKE that has been recently proposed by Mochetti, Resende, and Aranha (SBSeg 2015). Our work shows that the zkPAKE protocol is prone to o ine password guessing attack, even in the presence of an adversary that has only eavesdropping capabilities. Therefore, zkPAKE is insecure and should not be used as a password-authenticated key exchange mechanism
Research center :
ULHPC - University of Luxembourg: High Performance Computing
Disciplines :
Computer science
Author, co-author :
Lopez Becerra, José Miguel ;  University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
Ryan, Peter ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Computer Science and Communications Research Unit (CSC)
Sala, Petra ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Computer Science and Communications Research Unit (CSC)
Skrobot, Marjan
External co-authors :
no
Language :
English
Title :
An Offline Dictionary Attack Against zkPAKE Protocol
Alternative titles :
[en] An Offline Dictionary Attack Against zkPAKE Protocol
Publication date :
June 2018
Event name :
WiSec2018
Event organizer :
KTH Royal Institute of Technology Stockholm
Event place :
Stockholm, Sweden
Event date :
From 18-06-20018 to 20-06-2018
Audience :
International
Focus Area :
Computational Sciences
Available on ORBilu :
since 22 November 2018

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