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)
PDF
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
Creative Commons Attribution
CC BY

BibTeX

@misc{cryptoeprint:2005/013,
      author = {Hung-Yu Chien},
      title = {Comments: Insider attack on Cheng et al.'s pairing-based tripartite key agreement protocols},
      howpublished = {Cryptology ePrint Archive, Paper 2005/013},
      year = {2005},
      note = {\url{https://eprint.iacr.org/2005/013}},
      url = {https://eprint.iacr.org/2005/013}
}
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