Cryptanalysis on Improved One-round Lin-Li's Tripartite Key Agreement Protocol

Meng-Hui Lim; Sanggon Lee; Hoonjae Lee

Paper 2007/411

Cryptanalysis on Improved One-round Lin-Li's Tripartite Key Agreement Protocol

Meng-Hui Lim, Sanggon Lee, and Hoonjae Lee

Abstract

A tripartite authenticated key agreement protocol is designed for three entities to communicate securely over an open network particularly with a shared key. Recently, we have improved a one-round tripartite authenticated key agreement protocol proposed by Lin-Li due to its vulnerability to the forging attack in our previous report. However, we have later discovered that both the original Lin-Li's scheme and our previous enhanced protocol are vulnerable to the insider replay attack. Moreover, we have also realized that both protocols have falsely claimed the forward secrecy attribute. In this paper, we will revise our improvements and again secure this protocol against these cryptanalytic attacks while recovering the precious perfect forward secrecy property.

Metadata

Available format(s): PDF
Publication info: Published elsewhere. Unknown where it was published
Keywords: Cryptanalysis Tripartite Key Agreement Protocol
Contact author(s): meng17121983 @ yahoo com
History: 2007-12-11: revised; 2007-10-26: received; See all versions
Short URL: https://ia.cr/2007/411
License: CC BY

BibTeX

@misc{cryptoeprint:2007/411,
      author = {Meng-Hui Lim and Sanggon Lee and Hoonjae Lee},
      title = {Cryptanalysis on Improved One-round Lin-Li's Tripartite Key Agreement Protocol},
      howpublished = {Cryptology {ePrint} Archive, Paper 2007/411},
      year = {2007},
      url = {https://eprint.iacr.org/2007/411}
}