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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 attackAuthenticated key exchangeMultiple keyPerfect forward secrecy
Contact author(s)
qingfengc2008 @ sina com
History
2010-05-29: last of 2 revisions
2010-05-25: received
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Short URL
https://ia.cr/2010/312
License
Creative Commons Attribution
CC BY
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