An efficient certificateless authenticated key agreement scheme

Debiao He; Sahadeo Padhye; Jianhua Chen

Paper 2011/478

An efficient certificateless authenticated key agreement scheme

Debiao He, Sahadeo Padhye, and Jianhua Chen

Abstract

Due to avoiding the key escrow problem in the identity-based cryptosystem, certificateless public key cryptosystem (CLPKC) has received a significant attention. As an important part of the CLPKC, the certificateless authenticated key agreement (CLAKA) scheme also received considerable attention. Most CLAKA schemes are built from bilinear mappings on elliptic curves which need costly operations. To improve the performance, several pairing-free CLAKA schemes have been proposed. In this paper we propose a new pairing-free CLAKA scheme. Compared with the related schemes our scheme has better performance. We also show our scheme is provably secure in a very strong security model, i.e. the extended Canetti-Krawczyk (eCK) model.

Metadata

Available format(s): PDF
Publication info: Published elsewhere. The paper has not published.
Keywords: Certificateless cryptography Authenticated key agreement Provable security Bilinear pairings Elliptic curve
Contact author(s): hedebiao @ 163 com
History: 2011-12-18: revised; 2011-09-06: received; See all versions
Short URL: https://ia.cr/2011/478
License: CC BY

BibTeX

@misc{cryptoeprint:2011/478,
      author = {Debiao He and Sahadeo Padhye and Jianhua Chen},
      title = {An efficient certificateless authenticated key agreement scheme},
      howpublished = {Cryptology ePrint Archive, Paper 2011/478},
      year = {2011},
      note = {\url{https://eprint.iacr.org/2011/478}},
      url = {https://eprint.iacr.org/2011/478}
}