Cryptanalysis of Quantum Secure Direct Communication Protocol with Mutual Authentication Based on Single Photons and Bell States

• URL: http://arxiv.org/abs/2007.03710v1
• Date: Tue, 7 Jul 2020 18:02:38 GMT
• Title: Cryptanalysis of Quantum Secure Direct Communication Protocol with Mutual Authentication Based on Single Photons and Bell States
• Authors: Nayana Das and Goutam Paul
• Abstract summary: We show that the QSDC protocol is not secure against intercept-and-resend attack and impersonation attack. We propose a modification of this protocol, which defeats the above attacks along with all the familiar attacks.
• Score: 3.490038106567192
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Recently, Yan et al. proposed a quantum secure direct communication (QSDC) protocol with authentication using single photons and Einstein-Podolsky-Rosen (EPR) pairs (Yan et al., CMC-Computers, Materials \& Continua, 63(3), 2020). In this work, we show that the QSDC protocol is not secure against intercept-and-resend attack and impersonation attack. An eavesdropper can get the full secret message by applying these attacks. We propose a modification of this protocol, which defeats the above attacks along with all the familiar attacks.

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