Efficient and secure three-party authenticated key exchange protocol for mobile environments |
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Authors: | Chih-ho Chou Kuo-yu Tsai Tzong-chen Wu Kuo-hui Yeh |
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Affiliation: | 11404. Department of Information Management, National Taiwan University of Science and Technology, Taiwan, 106, Taipei 21404. Department of Management Information Systems, Hwa Hsia Institute of Technology, Taiwan, 235, New Taipei 31404. Department of Information Management, National Dong Hwa University, Taiwan, 974, Hualien
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Abstract: | Yang and Chang (2009) proposed a three-party authenticated key exchange protocol for securing communications in mobile-commerce environments. Their protocol reduces computation and communication costs by employing elliptic curve cryptosystems. However, Tan (2010) pointed out that Yang and Chang (2009)’s protocol cannot withstand impersonation and parallel attacks, and further proposed an enhanced protocol to resist these attacks. This paper demonstrates that Tan (2010)’s approach still suffers from impersonation attacks, and presents an efficient and secure three-party authenticated key exchange protocol to overcome shown weaknesses. |
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