Improving the security of “measurement-device-independent quantum communication without encryption”

Article Type

Research Article

Publication Title

Science Bulletin

Abstract

Recently in 2018, Niu et al. proposed a measurement-device-independent quantum secure direct communication protocol using Einstein-Podolsky-Rosen pairs and generalized it to a quantum dialogue protocol (Niu et al., Science bulletin 63.20, 2018). By analyzing these protocols we find some security issues in both these protocols. In this work, we show that both the protocols are not secure against information leakage, and a third party can get half of the secret information without any active attack. We also propose suitable modifications of these protocols to improve the security.

First Page

2048

Last Page

2049

DOI

10.1016/j.scib.2020.09.015

Publication Date

12-30-2020

Comments

Open Access, Green

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