Wuhan University Journal of Natural Sciences

, Volume 12, Issue 1, pp 63–66 | Cite as

Escrow-free certificate-based authenticated key agreement protocol from pairings

  • Wang Shengbao 
  • Cao Zhenfu 


Key agreement protocols are essential for secure communications. In this paper, to solve the inherent key escrow problem of identity-based cryptography, an escrow-free certificate-based authenticated key agreement (CB-AK) protocol with perfect forward secrecy is proposed. Our protocol makes use of pairings on elliptic curves. The protocol is described and its properties are discussed though comparison with Smart’s protocol.

Key words

authenticated key agreement (AK) certificate-based encryption (CBE) pairings session key escrow perfect forward security 

CLC number

TP 310 


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Copyright information

© Wuhan University Journals Press 2007

Authors and Affiliations

  1. 1.School of Electronic, Information and Electrical EngineeringShanghai Jiao Tong UniversityShanghaiChina

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