Comments on “An improved secure and efficient password and chaos-based two-party key agreement protocol”

详细信息    查看全文

• 作者：Chien-Ming Chen ; Weicheng Fang ; King-Hang Wang ; Tsu-Yang Wu
• 关键词：Cryptography ; Authenticated key exchange ; Chaotic maps ; Cryptanalysis
• 刊名：Nonlinear Dynamics
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：87
• 期：3
• 页码：2073-2075
• 全文大小：
• 刊物类别：Engineering
• 刊物主题：Vibration, Dynamical Systems, Control; Classical Mechanics; Mechanical Engineering; Automotive Engineering;
• 出版者：Springer Netherlands
• ISSN：1573-269X
• 卷排序：87

文摘

Recently, Liu and Xue proposed a secure two-party password-based authenticated key exchange protocol by utilizing the semi-group property of the Chebyshev chaotic maps. We exploit the vulnerability of the protocol in this paper by illustrating an off-line password guessing attack. In this attack, the password of a honest user will be recover by an attacker without being noticed by the server or the victim. To overcome such problem, we propose a simple and compatible fix.