Security weakness of two authenticated key exchange protocols from pairings

Qingfeng Cheng; Chuangui Ma

Paper 2010/312

Security weakness of two authenticated key exchange protocols from pairings

Qingfeng Cheng and Chuangui Ma

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.

Metadata

Available format(s): PDF
Publication info: Published elsewhere. Unknown where it was published
Keywords: Key compromise impersonation attack Authenticated key exchange Multiple key Perfect forward secrecy
Contact author(s): qingfengc2008 @ sina com
History: 2010-05-29: last of 2 revisions; 2010-05-25: received; See all versions
Short URL: https://ia.cr/2010/312
License: CC BY

BibTeX

@misc{cryptoeprint:2010/312,
      author = {Qingfeng Cheng and Chuangui Ma},
      title = {Security weakness of two authenticated key exchange protocols from pairings},
      howpublished = {Cryptology {ePrint} Archive, Paper 2010/312},
      year = {2010},
      url = {https://eprint.iacr.org/2010/312}
}