Attacks and Improvement on "Quantum Direct Communication with Mutual Authentication"

Tzu Han Lin, Chun Wei Yang, Tzonelih Hwang

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


In 2009, Yen et al. [Quantum Inf. Comput. 9(5-6):376-394, 2009] proposed a quantum direct communication along with an authentication protocol using Einstein-Podolsky-Rosen states. This study points out several attacks on Yen et al.'s protocol, in which a malicious Trent can launch either an intercept-resend attack to reveal the secret information of a sender or an impersonation attack to impersonate a sender to send forged secret information to a receiver. Furthermore, an outsider can launch a modification attack to modify the secret information of a sender. A possible solution is proposed herein to avoid these security attacks.

Original languageEnglish
Pages (from-to)597-602
Number of pages6
JournalInternational Journal of Theoretical Physics
Issue number2
Publication statusPublished - 2014 Feb

All Science Journal Classification (ASJC) codes

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

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