TANG and CHOO (2006) Secure Password-based Authenticated Group Key Agreement for Data-Sharing Peer-to-Peer Networks

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Secure Password-based Authenticated Group Key Agreement for Data-Sharing Peer-to-Peer Networks

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CONTRIBUTORS:

	Author:	TANG, QIANG
	Author:	CHOO, KIM-KWANG RAYMOND (Australian Institute of Criminology)
	Editor:	ZHOU, JIANYING
	Editor:	YUNG, MOTI
	Editor:	BAO, FENG

PROCEEDINGS TITLE:

4th International Conference on Applied Cryptography and Network Security - ACNS 2006 (Volume 3989/2006 of Lecture Notes in Computer Science)

YEAR:

2006

PUB TYPE:

Conference Paper in Proceedings

PAGES:

162 - 177

SUBJECT(S):

None

DISCIPLINE:

Computer Science

HTTP:

http://dx.doi.org/10.1007/11767480_11

LANGUAGE:

English

PUB ID:

103-429-547 (Last edited on 2006/11/12 16:02:58 US/Mountain)

SPONSOR(S):

ABSTRACT:
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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