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| Enhanced Identity-Based Authenticated Key Agreement Protocols in the Standard Model |
| Ren Yong-jun; Wang Jian-dong; Zhuang Yi |
College of Information Science and Technology,
Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China |
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Abstract Key derivation is an essential part of key agreement protocol. In 2007, Wang et al. presented an identity-based authenticated key agreement protocol in standard model. However there exists serious fault in key derivation of the protocol. In this paper, key derivation phase in standard model is subdivided into randomness extraction and key derivation. And a new authenticated key agreement protocol is devised using identity-based encryption scheme introduced by Kiltz et al, which has a tightly security reduction and performance efficiency.
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Received: 22 September 2008
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2009, Vol. 31 
