A new key agreement protocol based on chaotic maps

Authors:
Eun-Jun Yoon;Kee-Young Yoo
Affiliations:
Faculty of Computer Information, Daegu Polytechnic College, Daegu, South Korea;Department of Computer Engineering, Kyungpook National University, Daegu, South Korea
Venue:
KES-AMSTA'08 Proceedings of the 2nd KES International conference on Agent and multi-agent systems: technologies and applications
Year:
2008

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Abstract

In 2007, Xiao et al.'s proposed a novel key agreement protocol based on chaotic maps. Recently, Han et al., however, pointed out that Xiao et al.'s protocol is not secure against their developed new attacks which can hinder the user and the server from accomplishing a shared secret session key. In addition Han et al.'s attack, the current paper demonstrates that Xiao et al.'s protocol is vulnerable to off-line password guessing attack. Furthermore, the current paper presents a new key agreement protocol based on chaotic maps in order to isolate such security problems. In contrast with Xiao et al.'s protocol, the proposed protocol is more secure and can be reduced the numbers of communication rounds.