Secure Password-based Authenticated Group Key Agreement for Data-Sharing Peer-to-Peer Networks
Tang, Qiang & Choo, Kim-Kwang R. (2006) Secure Password-based Authenticated Group Key Agreement for Data-Sharing Peer-to-Peer Networks. In Zhou, Jianying & Yung, Moti (Eds.) 4th International Conference on Applied Cryptography and Network Security (ACNS'06), 6~9 June 2006, Singapore.
We explore authenticated group key agreement in data-sharing Peer-to-Peer networks. We first propose a novel password-based authenticated group key agreement protocol with key confirmation. We present a formal statement of its security in a variant of the Bresson et al. security model adapted for the password-based setting. A discussion of the limitations of our protocol in the case where the group size becomes large is then presented. We conclude the paper with an enhanced version of the protocol, using a CAPTCHA technique, designed to make it more robust against online password guessing attacks.
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|Item Type:||Conference Paper|
|Keywords:||P2P network, key agreement, provable security, CAPTCHA|
|Subjects:||Australian and New Zealand Standard Research Classification > INFORMATION AND COMPUTING SCIENCES (080000)|
|Divisions:||Past > QUT Faculties & Divisions > Faculty of Science and Technology|
|Copyright Owner:||Copyright 2006 Springer|
|Copyright Statement:||This is the author-version of the work. Conference proceedings published, by Springer Verlag, will be available via SpringerLink. http://www.springer.de/comp/lncs/ Lecture Notes in Computer Science|
|Deposited On:||07 Apr 2006|
|Last Modified:||03 Mar 2011 15:41|
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