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A secure and efficient password‐authenticated group key exchange protocol for mobile ad hoc networks
Author(s) -
He Daojing,
Chen Chun,
Ma Maode,
Chan Sammy,
Bu Jiajun
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.1355
Subject(s) - computer science , password , authenticated key exchange , computer network , key exchange , group key , computer security , session key , key (lock) , oakley protocol , security association , public key cryptography , encryption , cloud computing security , cloud computing , network access control , operating system
SUMMARY Password‐authenticated group key exchange protocols enable communication parties to establish a common secret key (a session key) by only using short secret passwords. Such protocols have been receiving significant attention. This paper shows some security weaknesses in some recently proposed password‐authenticated group key exchange protocols. Furthermore, a secure and efficient password‐authenticated group key exchange protocol in mobile ad hoc networks is proposed. It only requires constant round to generate a group session key under the dynamic scenario. In other words, the overhead of key generation is independent of the size of a total group. Further, the security properties of our protocol are formally validated by a model checking tool called AVISPA. Security and performance analyses show that, compared with other related group key exchange schemes, the proposed protocol is also efficient for real‐world applications in enhancing the security over wireless communications. Copyright © 2011 John Wiley & Sons, Ltd.