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Security weakness of two authenticated key exchange protocols from pairings

Authors:
Qingfeng Cheng
Chuangui Ma
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URL: http://eprint.iacr.org/2010/312
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Abstract: Recently, Liu proposed two authenticated multiple key exchange protocols using pairings, and claimed two protocols featured many security attributes. In this paper, we show that Liu’s protocols are insecure. Both of Liu’s protocols cannot provide perfect forward secrecy.
BibTeX
@misc{eprint-2010-23213,
  title={Security weakness of two authenticated key exchange protocols from pairings},
  booktitle={IACR Eprint archive},
  keywords={Key compromise impersonation attack; Authenticated key exchange; Multiple key; Perfect forward secrecy},
  url={http://eprint.iacr.org/2010/312},
  note={ qingfengc2008@sina.com 14758 received 25 May 2010, last revised 29 May 2010},
  author={Qingfeng Cheng and Chuangui Ma},
  year=2010
}