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