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Comments: Insider attack on Cheng et al.'s pairing-based tripartite key agreement protocols
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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. |
BibTeX
@misc{eprint-2005-12352, title={Comments: Insider attack on Cheng et al.'s pairing-based tripartite key agreement protocols}, booktitle={IACR Eprint archive}, keywords={cryptographic protocols / elliptic curve cryptosystem, cryptanalysis, key escrow}, url={http://eprint.iacr.org/2005/013}, note={ redfish6@ms45.hinet.net 12803 received 20 Jan 2005}, author={Hung-Yu Chien}, year=2005 }