CryptoDB
Comments on a Provably Secure Three-Party Password-Based Authenticated Key Exchange Protocol Using Weil Pairings
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Abstract: | In 2005, Wen et al. proposed the first provably secure three-party password-based authenticated key exchange using Weil pairings, and provided their proof in a modified Bellare-Rogaway model (BR-model). Here, we show an impersonation attack on Wen et al.¡¦s scheme and point out a main flaw of their model that allows a man-in-the-middle adversary easily violate the security. |
BibTeX
@misc{eprint-2006-21507, title={Comments on a Provably Secure Three-Party Password-Based Authenticated Key Exchange Protocol Using Weil Pairings}, booktitle={IACR Eprint archive}, keywords={cryptographic protocols / weil pairing, random oracle, authenticated key exchange}, url={http://eprint.iacr.org/2006/013}, note={ redfish6@ms45.hinet.net 13159 received 11 Jan 2006}, author={Hung-Yu Chien}, year=2006 }