An attribute‐based tripartite key agreement protocol

Abstract

SummaryTripartite key agreement protocols enable three users to share a common and secure secret key by exchanging some information in a public channel. In this paper, we introduce the first attribute‐based tripartite key agreement protocol, which is a kind of identity‐based tripartite key agreement protocols, which the identities consist of descriptive attributes. Also, we propose an extended security model for these protocols and prove the security of our protocol in the random oracle model.Copyright © 2014 John Wiley & Sons, Ltd.

Key Escrow Protocol Based on a Tripartite Authenticated Key Agreement and Threshold Cryptography

“…To protect against the leakage of participants' ephemeral secret keys, Manulis M et al proposed a security model for a group key agreement protocol based on the extended Canetti-Krawczyk (eCK) model, named the g-eCK model [34], and then proposed a tripartite key agreement protocol (treated as a special case of group key agreement protocol) under the g-eCK model. Bayat M et al proposed the first attribute-based tripartite key agreement protocol and an improved security model for this kind of protocol [35]. To improve the security of the tripartite AKA protocol, Suzuki K et al proposed a one-round tripartite AKA protocol in the standard model [36].…”

A provably secure certificateless organizational signature schemes

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