Provably secure certificateless one-way and two-party authenticated key agreement protocol

  • Authors:
  • Lei Zhang

  • Affiliations:
  • Shanghai Key Laboratory of Trustworthy Computing, Software Engineering Institute, East China Normal University, Shanghai, China

  • Venue:
  • ICISC'12 Proceedings of the 15th international conference on Information Security and Cryptology
  • Year:
  • 2012

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Abstract

Key agreement protocols are one of the fundamental primitives in cryptography. In this paper, we formalize the security model for certificateless one-way and two-party authenticated key agreement protocols and propose a concrete certificateless one-way and two-party authenticated key agreement protocol. The security of our protocol is proven under the computational Diffie-Hellman, square computational Diffie-Hellman and gap bilinear Diffie-Hellman assumptions. As for efficiency, the protocol requires only one pass and has low communication overhead.