Efficient Identity-Based and Authenticated Key Agreement Protocol

TL;DR

This paper introduces an efficient identity-based authenticated key agreement protocol called IDAK, utilizing Weil/Tate pairing, with proven security properties in the Bellare-Rogaway model.

Contribution

The paper presents a novel IDAK protocol that achieves comprehensive security properties, filling gaps left by previous protocols.

Findings

IDAK protocol is secure in Bellare-Rogaway model.

IDAK achieves all required security properties.

The protocol is efficient due to pairing-based cryptography.

Abstract

Several identity based and implicitly authenticated key agreement protocols have been proposed in recent years and none of them has achieved all required security properties. In this paper, we propose an efficient identity-based and authenticated key agreement protocol IDAK using Weil/Tate pairing. The security of IDAK is proved in Bellare-Rogaway model. Several required properties for key agreement protocols are not implied by the Bellare-Rogaway model. We proved these properties for IDAK separately.