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Paper 2005/013
Comments: Insider attack on Cheng et al.'s pairing-based tripartite key agreement protocols
Hung-Yu Chien
Abstract
Recently, Cheng et al. proposed two tripartite key agreement protocols from pairings: one is certificate-based and the other is identity-based (ID-based). In this article, we show that the two schemes are vulnerable to the insider impersonation attack and the ID-based scheme even discloses the entities¡¦ private keys. Solutions to this problem are discussed.
Metadata
- Available format(s)
- Category
- Cryptographic protocols
- Publication info
- Published elsewhere. Unknown where it was published
- Keywords
- elliptic curve cryptosystemcryptanalysiskey escrow
- Contact author(s)
- redfish6 @ ms45 hinet net
- History
- 2005-01-20: received
- Short URL
- https://ia.cr/2005/013
- License
-
CC BY