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Paper: Password-Authenticated Constant-Round Group Key Establishment with a Common Reference String

Authors:
Jens-Matthias Bohli
Maria Isabel Gonzalez Vasco
Rainer Steinwandt
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URL: http://eprint.iacr.org/2006/214
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Abstract: A provably secure password-authenticated protocol for group key establishment in the common reference string (CRS) model is presented. Our construction assumes the participating users to share a common password and combines smooth hashing as introduced by Cramer and Shoup with a construction of Burmester and Desmedt. Our protocol is constant-round. Namely, it is a three-round protocol that can be seen as generalization of a two-party proposal of Gennaro and Lindell.
BibTeX
@misc{eprint-2006-21707,
  title={Password-Authenticated Constant-Round Group Key Establishment with a Common Reference String},
  booktitle={IACR Eprint archive},
  keywords={cryptographic protocols / passwords, group key establishment, projective hash functions},
  url={http://eprint.iacr.org/2006/214},
  note={ bohli@ira.uka.de 14361 received 27 Jun 2006, last revised 27 Apr 2009},
  author={Jens-Matthias Bohli and Maria Isabel Gonzalez Vasco and Rainer Steinwandt},
  year=2006
}