Tightly-Secure PAK(E)

José Becerra; Vincenzo Iovino; Dimiter Ostrev; Petra Šala; Marjan Škrobot

Paper 2017/1045 Original: eprint.iacr.org/2017/1045 ↗

Tightly-Secure PAK(E)

José Becerra

Vincenzo Iovino

Dimiter Ostrev

Petra Šala

Marjan Škrobot

Abstract

We present a security reduction for the PAK protocol instantiated over Gap Diffie-Hellman Groups that is tighter than previously known reductions. We discuss the implications of our results for concrete security. Our proof is the first to show that the PAK protocol can provide meaningful security guarantees for values of the parameters typical in today's world.

Metadata

Available format(s): PDF
Category: Cryptographic protocols
Publication info: Preprint.
History: 2017-10-28: last updated; 2017-10-28: published
Short URL: https://ia.cr/2017/1045
License: https://creativecommons.org/licenses/by/4.0/

BibTeX

@misc{cryptoeprint:2017/1045,
      author = {José Becerra and Vincenzo Iovino and Dimiter Ostrev and Petra Šala and Marjan Škrobot},
      title = {Tightly-Secure PAK(E)},
      howpublished = {Cryptology {ePrint} Archive, Paper 2017/1045},
      year = {2017},
      url = {https://eprint.iacr.org/2017/1045}
}