Paper 2005/141 Original: eprint.iacr.org/2005/141 ↗

Enhanced password-based key establishment protocol

Qiang Tang
Chris J. Mitchell
Abstract

In this paper we analyse a password-based authenticated key establishment protocol due to Laih, Ding and Huang, which enables a user to authenticate himself to a server and negotiate a shared session key. This protocol is also designed to guarantee that a human being is actually involved in an ongoing protocol execution. However we show that the protocol suffers from offline dictionary attacks. We propose an enhanced password-based authenticated key establishment protocol which is secure against offline dictionary attacks, and that possesses an additional feature guaranteeing that a user is involved in each protocol execution.

Metadata
Available format(s)
PDF
Publication info
Preprint.
History
2005-06-15: last updated
2005-05-19: published
Short URL
https://ia.cr/2005/141
License
https://creativecommons.org/licenses/by/4.0/

BibTeX

@misc{cryptoeprint:2005/141,
      author = {Qiang Tang and Chris J.  Mitchell},
      title = {Enhanced password-based key establishment protocol},
      howpublished = {Cryptology {ePrint} Archive, Paper 2005/141},
      year = {2005},
      url = {https://eprint.iacr.org/2005/141}
}
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