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A Trusted Multi-Party Authentication Scheme Based on Proactive-ElGamal Threshold Secret Sharing System

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Abstract:

In most existing authentication schemes users are authenticated by the server one by one which results in lower efficiency of authentication when the number of users is large. Aiming at the drawback, this paper propose an efficient trusted multi-party authentication scheme based on threshold secret sharing, the discrete logarithm problem and ElGamal cryptosystem. Using (t,n) threshold secret sharing idea, the paper propose a (t,n) threshold authentication scheme which can not only simultaneously authenticate t users satisfying some specific conditions, but also authenticate new users dynamically by distributing a new authentication key for the new user which was produced by t old users and the new user together. Finally, the security and efficiency of the proposed scheme are analyzed.

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Periodical:

Applied Mechanics and Materials (Volume 235)

Pages:

20-24

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.235.20

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Cite this paper

Online since:

November 2012

Authors:

Yu Guang Yang, Hai Ping Chai

Keywords:

Authentication, Discrete Logarithm, ElGamal Cryptosystem, Threshold Secret Sharing

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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