A pairing-free identity-based authenticated key agreement protocol with minimal message exchanges

  • Authors:
  • Xuefei Cao;Weidong Kou;Xiaoni Du

  • Affiliations:
  • Dept. of Computer Science, Duke University, United States;State Key Laboratory of Integrated Service Networks, Xidian University, China;College of Mathematics and Information Science, Northwest Normal University, China

  • Venue:
  • Information Sciences: an International Journal
  • Year:
  • 2010

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Abstract

Based on the computational Diffie-Hellman problem, this paper proposes an identity-based authenticated key agreement protocol which removes bilinear pairings. Compared with previous protocols, the new protocol minimizes message exchange time with no extra cost. The protocol provides strong security guarantees including key compromise impersonation resilience, perfect forward secrecy, and master key forward secrecy. A security proof with the modular approach in the modified Bellare-Rogaway model is also provided.