A New Two-Party Identity-Based Authenticated Key Agreement

Noel McCullagh; Paulo S.  L.  M.  Barreto

Paper 2004/122

A New Two-Party Identity-Based Authenticated Key Agreement

Noel McCullagh and 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.

Metadata

Available format(s): PDF
Category: Cryptographic protocols
Publication info: Published elsewhere. Unknown where it was published
Keywords: identity-based cryptography authenticated key agreement Tate pairing
Contact author(s): pbarreto @ larc usp br
History: 2005-02-04: last of 6 revisions; 2004-05-26: received; See all versions
Short URL: https://ia.cr/2004/122
License: CC BY

BibTeX

@misc{cryptoeprint:2004/122,
      author = {Noel McCullagh and Paulo S.  L.  M.  Barreto},
      title = {A New Two-Party Identity-Based Authenticated Key Agreement},
      howpublished = {Cryptology {ePrint} Archive, Paper 2004/122},
      year = {2004},
      url = {https://eprint.iacr.org/2004/122}
}