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2024
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no. 1
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Vol. 1
A Secure Protocol for Three-Party Authenticated Key Exchange with Provable Belief
Pages
:
77-87
Ting-Fang Cheng, Chin-Chen Chang, Zhi-Hui Wang
Three-Party authenticated key exchange (3PAKE) protocol is an important cryptographic mechanism in which two clients can request the session key for communicating with each other and one trusted server takes the responsibility for authenticating users and key agreements. In 2007, Lu and Cao proposed a simple 3PAKE protocol. Nevertheless, we find that it is vulnerable to the off-line password guessing attack and the impersonation attack. We therefore propose a novel version using smart cards to withstand more malicious attacks. We also give a formal correctness analysis of mutual authentication to our scheme using BAN authentication logic. What is more, we make detail discussions for highlighting that our proposed scheme can prevent several malicious attacks and is more efficient than other related works.
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