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›› 2009, Vol. 26 ›› Issue (6): 835-840.DOI: 10.7523/j.issn.2095-6134.2009.6.015

• Research Articles • Previous Articles     Next Articles

Deniable problems in secret authentication

TANG Qiang, JI Dong-Yao   

  1. State Key Lab. of Information Security, Graduate University of the Chinese Academy of Sciences, Beijing 100049, China
  • Received:2009-01-14 Revised:2009-05-05 Online:2009-11-15

Abstract:

One privacy-related problem is that the member in a group would like to only communicate with the member of the same group. When they are in the same group, message should be authenticated.Otherwise, nothing about the affiliation information could be leaked. After the communication, the sender would not like to leave evidence for convincing others.To the best of our knowledge,all the existing designs are not efficient in solving this kind of problems. We formalized the problem, proposed a non-interactive deniable organization hiding authentication, and proved our scheme in our model.

Key words: privacy protection, deniable authentication, secret handshakes, provable security

CLC Number: