Deniability and forward secrecy of one-round authenticated key exchange

  • Authors:
  • Haibo Tian;Xiaofeng Chen;Willy Susilo

  • Affiliations:
  • School of Information Technology Engineering, Tianjin University of Technology and Education, Tianjin, China 300222;School of Telecommunications Engineering, Xidian University, Xi'an, China 710071;School of Computer Science and Software Engineering, University of Wollongong, Wollongong, Australia 2522

  • Venue:
  • The Journal of Supercomputing
  • Year:
  • 2014

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Abstract

Deniability and forward secrecy are two properties of authenticated key exchange (AKE) protocols. Considering one-round AKE, Cremers and Feltz at ESORICS 2012 defined a security model with perfect forward secrecy. Based on their model, we consider different levels of deniability, and reveal some relationships of the session-key security and the deniability properties. The observations result in a simple method to give a deniable protocol with forward secrecy.