SCIENCE CHINA Information Sciences, Volume 60, Issue 5: 052107(2017) https://doi.org/10.1007/s11432-016-5522-z

Universally composable anonymous password authenticated key exchange

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  • ReceivedOct 12, 2015
  • AcceptedNov 24, 2015
  • PublishedSep 28, 2016


Anonymous password authenticated key exchange (APAKE) is an important cryptographic primitive, through which a client holding a password can establish a session key with a server both authentically and anonymously. Although the server is guaranteed that the client in communication is from a pre-determined group, but the client's actual identity is protected. Because of their convenience, APAKE protocols have been widely studied and applied to the privacy protection research. However, all existing APAKE protocols are handled in stand-alone models and do not adequately settle the problem of protocol composition, which is a practical issue for protocol implementation. In this paper, we overcome this issue by formulating and realizing an ideal functionality for APAKE within the well-known universal composability (UC) framework, which thus guarantees security under the protocol composition operations. Our formulation captures the essential security requirements of APAKE such as off-line dictionary attack resistance, client anonymity and explicit mutual authentication. Moreover, it addresses the arbitrary probabilistic distribution of passwords. The construction of our protocol, which utilizes SPHF-friendly commitments and CCA2-secure encryption schemes, can be instantiated and proven secure in the standard model, i.e., without random oracle heuristics.

Funded by

China Postdoctoral Science Foundation(2014M552524)

National Basic Research Program of China(2013CB338003)

National Basic Research Program of China(2012CB315905)

National Natural Science Foundation of China(61170279)

Foundation of Science and Technology on Information Assurance Laboratory(KJ-14-004)

National Natural Science Foundation of China(61379150)

National High Technology Research and Development Program of China(2012AA01A\\linebreak403)

National Natural Science Foundation of China(61502527)

National Natural Science Foundation of China(61170278)



This work was supported by National Natural Science Foundation of China (Grant Nos. 61502527, 61170278, 61170279, 61379150), National Basic Research Program of China (Grant Nos. 2013CB338003, 2012CB315905), National High Technology Research and Development Program of China (Grant No. 2012AA01A\linebreak403), China Postdoctoral Science Foundation (Grant No. 2014M552524), and Foundation of Science and Technology on Information Assurance Laboratory (Grant No. KJ-14-004).


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