Journal on Communications ›› 2015, Vol. 36 ›› Issue (9): 82-90.doi: 10.11959/j.issn.1000-436x.2015246

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New affiliation-hiding authenticated key exchange protocol

Ya-min WEN1,2,Zheng GONG3,4()   

  1. 1 School of Mathematics and Statistics,Guangdong University of Finance and Economics,Guangzhou 510320,China
    2 Shanghai Key Laboratory of Integrated Administration Technologies for Information Security,Shanghai 200240,China
    3 School of Computer Science,South China Normal University,Guangzhou 510631,China
    4 State Key Laboratory of Information Security,Institute of Information Engineering,Chinese Academy of Sciences,Beijing 100093,China
  • Online:2015-09-25 Published:2017-09-15
  • Supported by:
    The National Natural Sciences Foundation of China;The National Natural Sciences Foundation of China;The Natural Science Foundation of Guangdong Province;The Natural Science Foundation of Guangdong Province;The Natural Science Foundation of Guangdong Province;The Foundation for Distinguished Young Teachers in Higher Education of Guangdong Province;The Project of Science and Technology New Star of Guangzhou Pearl River;The Opening Project of Shanghai Key Laboratory of Integrated Administration Technologies for Information Security

Abstract:

A new affiliation-hiding authenticated key agreement protocol was proposed.The proposal enables two anonymous users to accomplish a successful secret authentication and key agreement when their groups set intersection is non-empty and the cardinality of the set intersection should not be less than a threshold value.Meanwhile,the affiliations of groups outside of the set intersection remain confidential.The proposal is provably secure under the random oracle model,and the performance of the scheme is still competitive.

Key words: affiliation-hiding, authenticated key agreement, secret handshakes, set intersection, link ability

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