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Paper 2006/013
Comments on a Provably Secure Three-Party Password-Based Authenticated Key Exchange Protocol Using Weil Pairings
Hung-Yu Chien
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.
Metadata
- Available format(s)
- Category
- Cryptographic protocols
- Publication info
- Published elsewhere. Unknown where it was published
- Keywords
- weil pairingrandom oracleauthenticated key exchange
- Contact author(s)
- redfish6 @ ms45 hinet net
- History
- 2006-01-12: received
- Short URL
- https://ia.cr/2006/013
- License
-
CC BY