Cryptanalysis of Group Key Agreement Protocol Based on Chaotic Hash Function

Eun-Jun YOON; Kee-Young YOO

doi:10.1587/transinf.E94.D.2167

IEICE Transactions on Information and Systems

Online ISSN : 1745-1361
Print ISSN : 0916-8532

Special Section on Information and Communication System Security

Cryptanalysis of Group Key Agreement Protocol Based on Chaotic Hash Function

Eun-Jun YOON, Kee-Young YOO

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Keywords: cryptanalysis, key agreement, chaotic maps, hash function, Chebyshev map

JOURNAL FREE ACCESS

2011 Volume E94.D Issue 11 Pages 2167-2170

DOI https://doi.org/10.1587/transinf.E94.D.2167

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Abstract

In 2010, Guo and Zhang proposed a group key agreement protocol based on the chaotic hash function. This letter points out that Guo-Zhang's protocol is still vulnerable to off-line password guessing attacks, stolen-verifier attacks and reflection attacks.

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