International Association for Cryptologic Research

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Two improved authenticated multiple key exchange protocols

Authors:
Feng LIU
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URL: http://eprint.iacr.org/2010/267
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Abstract: Many authenticated multiple key exchange protocols were published in recent years. In 2008, Lee et al. presented an authenticated multiple key exchange protocol based on bilinear pairings. However, Vo et al. demonstrated an impersonation attack on the protocol , and it failed to provide authenticity and perfect forward secrecy as they had claimed. Later, Vo et al. proposed their enhancement protocol conforming which conforms to all desirable security properties. But, Vo's protocol required any party had held the public key each other, which required a large amount of storage. In this paper, we propose two new authenticated multiple key exchange protocols based on Lee's protocol, and makes them immune against Vo et al.'s attacks.
BibTeX
@misc{eprint-2010-23168,
  title={Two improved authenticated multiple key exchange protocols},
  booktitle={IACR Eprint archive},
  keywords={public-key cryptography / key management},
  url={http://eprint.iacr.org/2010/267},
  note={no liufeng@ldu.edu.cn 14738 received 8 May 2010},
  author={Feng LIU},
  year=2010
}