Improvement of “Novel Multiparty Quantum Key Agreement Protocol with GHZ States”

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)

Abstract

Quantum key agreement (QKA) protocol is a method for negotiating a fair and secure key among mutually untrusted participants. Recently, Xu et al. (Quantum Inf. Process. 13:2587–2594, 2014) proposed a multi-party QKA protocol based on Greenberger-Horne-Zeilinger (GHZ) states. However, this study points out that Xu et al.’s protocol cannot provide the fairness property. That is, the last involved participant in the protocol can manipulate the final shared secret key without being detected by the other participants. Moreover, according to Yu et al.’s research (2015), Xu et al.’s protocol cannot avoid the public discussion attack too. To avoid these weaknesses, an improved QKA protocol is proposed.

Original languageEnglish
Pages (from-to)3108-3116
Number of pages9
JournalInternational Journal of Theoretical Physics
Volume56
Issue number10
DOIs
Publication statusPublished - 2017 Oct 1

All Science Journal Classification (ASJC) codes

  • Mathematics(all)
  • Physics and Astronomy (miscellaneous)

Fingerprint Dive into the research topics of 'Improvement of “Novel Multiparty Quantum Key Agreement Protocol with GHZ States”'. Together they form a unique fingerprint.

Cite this