An improvement on a deniable authentication protocol

Authors:
Ya-Fan Chang;Chin-Chen Chang;Chia-Lin Kao
Affiliations:
National Chung Cheng University, Chiayi, Taiwan;National Chung Cheng University, Chiayi, Taiwan;National Chung Cheng University, Chiayi, Taiwan
Venue:
ACM SIGOPS Operating Systems Review
Year:
2004

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Concurrent zero-knowledge

STOC '98 Proceedings of the thirtieth annual ACM symposium on Theory of computing

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Abstract

In 2002, Fan et al. proposed a deniable authentication protocol based on the Deffie-Hellman key agreement protocol. They guaranteed that the proposed protocol, which is deniable, can authenticate the source of the message and resist the person-in-the-middle(PIM) attack. However, the receiver is not authenticated in the proposed deniable authentication protocol, which will result in some security flaws. As a result, we propose an improvement to overcome these drawbacks in this paper.