New Identity-Based Authenticated Key Agreement Protocols from Pairings (without Random Oracles)

Shengbao Wang; Zhenfu Cao; Kim-Kwang Raymond Choo

Paper 2006/446

New Identity-Based Authenticated Key Agreement Protocols from Pairings (without Random Oracles)

Shengbao Wang, Zhenfu Cao, and Kim-Kwang Raymond Choo

Abstract

We present the first provably secure ID-based key agreement protocol, inspired by the ID-based encryption scheme of Gentry, in the standard (non-random-oracle) model. We show how this key agreement can be used in either escrowed or escrowless mode. We also give a protocol which enables users of separate private key generators to agree on a shared secret key. All our proposed protocols have comparable performance to all known protocols that are proven secure in the random oracle model.

Note: Some minor changes were made to the security proof.

Metadata

Available format(s): PDF PS
Publication info: Published elsewhere. In submission.
Keywords: identity-based cryptography authenticated key agreement bilinear pairings standard model
Contact author(s): shengbao-wang @ cs sjtu edu cn
History: 2007-09-05: last of 9 revisions; 2006-12-04: received; See all versions
Short URL: https://ia.cr/2006/446
License: CC BY

BibTeX

@misc{cryptoeprint:2006/446,
      author = {Shengbao Wang and Zhenfu Cao and Kim-Kwang Raymond Choo},
      title = {New Identity-Based Authenticated Key Agreement Protocols from Pairings (without Random Oracles)},
      howpublished = {Cryptology {ePrint} Archive, Paper 2006/446},
      year = {2006},
      url = {https://eprint.iacr.org/2006/446}
}