[Resource Topic] 2004/122: A New Two-Party Identity-Based Authenticated Key Agreement

Welcome to the resource topic for 2004/122

Title:
A New Two-Party Identity-Based Authenticated Key Agreement

Authors: Noel McCullagh, Paulo S. L. M. Barreto

Abstract:

We present a new two-party identity-based key agreement that is more efficient than previously proposed schemes. It is inspired on a new identity-based key pair derivation algorithm first proposed by Sakai and Kasahara. We show how this key agreement can be used in either escrowed or escrowless mode. We also describe conditions under which users of different Key Generation Centres can agree on a shared secret key. We give an overview of existing two-party key agreement protocols, and compare our new scheme with existing ones in terms of computational cost and storage requirements.

ePrint: https://eprint.iacr.org/2004/122

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