Cryptology ePrint Archive: Report 2012/253

Cryptanalysis of pairing-free certificateless authenticated key agreement protocol

Zhian Zhu

Abstract: Recently, He et al. [D. He, J. Chen, J. Hu, A pairing-free certificateless authenticated key agreement protocol, International Journal of Communication Systems, 25(2), pp. 221-230, 2012] proposed a pairing-free certificateless authenticated key agreement protocol and demonstrated that their protocol is provable security in the random oracle model. However, in this paper, we show that t He et al. protocol is completely broken.

Category / Keywords: cryptographic protocols / certificateless cryptography; authenticated key agreement; provable security; elliptic curve

Publication Info: The paper has not published.

Date: received 5 May 2012

Contact author: zhuzhian2012 at gmail com

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Version: 20120509:230114 (All versions of this report)

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