Premium
Cryptanalysis and enhancements of efficient three‐party password‐based key exchange scheme
Author(s) -
Wu Shuhua,
Chen Kefei,
Pu Qiong,
Zhu Yuefei
Publication year - 2013
Publication title -
international journal of communication systems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.344
H-Index - 49
eISSN - 1099-1131
pISSN - 1074-5351
DOI - 10.1002/dac.1362
Subject(s) - computer science , key exchange , password , cryptanalysis , computer security , key (lock) , dictionary attack , protocol (science) , s/key , scheme (mathematics) , authenticated key exchange , cryptography , public key cryptography , encryption , medicine , mathematical analysis , alternative medicine , mathematics , pathology
SUMMARY In this paper, we first showed that Lou and Huang's three‐party password‐based key exchange protocol is still vulnerable to offline dictionary attacks. Thereafter, we proposed an enhanced protocol that can defeat the attack described and yet is efficient. Finally, we provided the rigorous proof of the security for it. Copyright © 2011 John Wiley & Sons, Ltd.