Transaction-based authentication and key agreement protocol for inter-domain VoIP

  • Authors:
  • Patrick Battistello;Joaquin Garcia-Alfaro;Cyril DeléTré

  • Affiliations:
  • Orange Labs, 2 av. Pierre Marzin, 22307 Lannion Cedex, France and Institut Télécom, Télécom Bretagne, 35576 Césson-Sévigné, France;Institut Télécom, Télécom Bretagne, 35576 Césson-Sévigné, France;Orange Labs, 2 av. Pierre Marzin, 22307 Lannion Cedex, France

  • Venue:
  • Journal of Network and Computer Applications
  • Year:
  • 2012

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Abstract

We present an authentication and key agreement protocol to secure Voice over IP call establishment between interconnection proxies of different domains. The protocol operates on a transaction basis. Each transaction is defined as the set of operations and data required to send an Authenticated Message from a sender to a responder. A transaction allows a sender to either transmit a cryptographically protected stand-alone message; or a key-agreement message required to establish a secure session. The protocol handles transaction synchronisation loss and guarantees the use of a single transaction window in the general (inter-domain) context with multiple originating servers.