International Association for Cryptologic Research

International Association
for Cryptologic Research

CryptoDB

Paper: Cryptanalysis and Improvement of an Elliptic Curve Diffie-Hellman Key Agreement Protocol

Authors:
Shengbao Wang
Zhenfu Cao
Maurizio Adriano Strangio
Lihua Wang
Download:
URL: http://eprint.iacr.org/2007/026
Search ePrint
Search Google
Abstract: In SAC'05, Strangio proposed protocol ECKE-1 as an efficient elliptic curve Diffie-Hellman two-party key agreement protocol using public key authentication. In this letter, we show that despite the author's claims protocol ECKE-1 is vulnerable to key-compromise impersonation attacks. We also present an improved protocol --- ECKE-1N, which can withstand such attacks. The improved protocol's performance is comparable to the well-known MQV protocol and maintains the same remarkable list of security properties.
BibTeX
@misc{eprint-2007-13308,
  title={Cryptanalysis and Improvement of an Elliptic Curve Diffie-Hellman Key Agreement Protocol},
  booktitle={IACR Eprint archive},
  keywords={Key agreement, elliptic curve cryptography, Diffie--Hellman protocol, key-compromise impersonation, MQV},
  url={http://eprint.iacr.org/2007/026},
  note={IEEE Communications Letters shengbao-wang@cs.sjtu.edu.cn 13861 received 26 Jan 2007, last revised 14 Dec 2007},
  author={Shengbao Wang and Zhenfu Cao and Maurizio Adriano Strangio and Lihua Wang},
  year=2007
}