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2003 International Conference on Communication Technology

作者： Chin-Chen Chang Chi-Yien Chung Department of Computer Science and Information Engineering Nation Chung Cheng University Chiayi Taiwan 621 R.O.C.

key exchange is an important subject in cryptosystem, which has marched the world into the complicated application of communication technology nowadays. A common cryptographic technique is used to enc

关键词： key exchange session key public key cryptography.

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A NEW TWO-WAY AUTHENTICATION AND PRIVACY MECHANISM FOR WLAN SECURITY

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Journal of Pharmaceutical Analysis 2003年第2期15卷 111-115页

作者：郑庆华 David Pepyne Computer Department of Xi an Jiaotong University

Objective Aiming at lots of vulnerabilities in the Wired Equivalent Privacy (WEP) which threats the authentication and confidentiality in wireless communication, a new kind of mutual authentication and privacy mechanism named MWEP(Modified WEP) is proposed. Methods MWEP is based on pseudo random number generator (PRNG) and asymmetric cryptograph approach, it generates a unique session key like “One Time Password” for each data frame transmission between any two mobile stations. Results Using this session key to encrypt the transmission data, not only can it avoid replay attack, but also provide a good secure virtual channel for the sender and receiver. MWEP can be incorporated into IEEE 802.11. Conclusion It shows that the proposed mechanism is effective and practical after comparison with WEP and simulation.

关键词： wireless LAN security, authentication privacy WEP PRNG session key

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A Two-Party Password-Authenticated key Exchange Protocol with Verifier

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Journal of Computer and Communications 2021年第4期9卷 102-109页

作者： Shunbo Xiang Bing Xu Ke Chen School of Computer Guangdong University of Petrochemical Technology Maoming China

To tackle with the security lack in the password-authenticated key exchange protocol, this paper proposes a two-party password-authenticated key exchange protocol based on a verifier. In the proposed protocol, a user stores his password in plaintext, and the server stores a verifier for the user’s password, using DL difficult problem and DH difficult problem, through the session between user and server to establish a session key. The security discussion result shows that the proposed protocol provides forward secrecy, and can effectively defend against server compromising fake attacks, dictionary attacks and middleman attacks. Protocol efficiency comparisons reveal our protocol is more reasonable.

关键词： Verifier Password-Authenticated key Exchange Fake Attack Dictionary Attack session key

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