Passwords.pdf (197.56 kB)
Download file

Security of group key exchange protocols with different passwords

Download (197.56 kB)
conference contribution
posted on 17.12.2009, 09:59 by Raphael C.-W. Phan
Password-based authenticated group key exchange protocols allow group users to jointly share a session key based on a human-memorizable password. In this paper, we present an undetectable online dictionary attack on N-EKE-D, a recent provably secure protocol designed to explicitly resist this type of attack. Thus, our result contradicts the design goal. We also give a simple attack on the key indistinguishability of N-EKE-D and two N-EKE-M variants that exploits the definition of partnering in their security model.

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Citation

PHAN, R.C.-W., 2009. Security of group key exchange protocols with different passwords. IN: International Conference on Advanced Information Networking and Applications Workshops, (WAINA '09), Bradford, 26-29 May, pp. 147-152

Publisher

© IEEE

Version

VoR (Version of Record)

Publication date

2009

Notes

This is a conference paper [© IEEE]. It is also available at: http://ieeexplore.ieee.org/ Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.

ISBN

9781424439997

Language

en