Cryptanalysis of a client-to-client password-authenticated key agreement protocol

Fengjiao Wang; Yuqing Zhang

Paper 2008/248

Cryptanalysis of a client-to-client password-authenticated key agreement protocol

Fengjiao Wang and Yuqing Zhang

Abstract

Recently, Byun et al. proposed an efficient client-to-client password-authenticated key agreement protocol (EC2C-PAKA), which was provably secure in a formally defined security model. This letter shows that EC2C-PAKA protocol is vulnerable to password compromise impersonate attack and man-in-the-middle attack if the key between servers is compromised.

Metadata

Available format(s): PDF
Category: Cryptographic protocols
Publication info: Published elsewhere. Unknown where it was published
Contact author(s): wangfj @ nipc org cn
History: 2008-06-03: received
Short URL: https://ia.cr/2008/248
License: CC BY

BibTeX

@misc{cryptoeprint:2008/248,
      author = {Fengjiao Wang and Yuqing Zhang},
      title = {Cryptanalysis of a client-to-client password-authenticated key agreement protocol},
      howpublished = {Cryptology {ePrint} Archive, Paper 2008/248},
      year = {2008},
      url = {https://eprint.iacr.org/2008/248}
}