Paper 2004/270

An Enhanced and Secure Protocol for Authenticated Key Exchange

Fuw-Yi Yang and Jinn-Ke Jan

Abstract

An enhanced authentication key exchange protocol was proposed to exchange multiple session keys between two participants at a time. This paper shows that this enhanced protocol is insecure under the known session key attack, known long-term private key attack, signature forgery attack, and replay attack. This paper also proposes an enhanced and secure key agreement protocol for exchanging multiple session keys in one run of the protocol. The protocol is secure against the attacks mentioned above. Besides, a formal proof is given to guarantee the security of the proposed protocol under other potential attacks.

Metadata
Available format(s)
PDF PS
Category
Cryptographic protocols
Publication info
Published elsewhere. Unknown where it was published
Keywords
AuthenticationDiffie-Hellman key exchangeperfect forward secrecysession key
Contact author(s)
jkjan @ cs nchu edu tw
History
2004-10-21: received
Short URL
https://ia.cr/2004/270
License
Creative Commons Attribution
CC BY

BibTeX

@misc{cryptoeprint:2004/270,
      author = {Fuw-Yi Yang and Jinn-Ke Jan},
      title = {An Enhanced and Secure Protocol for Authenticated Key Exchange},
      howpublished = {Cryptology ePrint Archive, Paper 2004/270},
      year = {2004},
      note = {\url{https://eprint.iacr.org/2004/270}},
      url = {https://eprint.iacr.org/2004/270}
}
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