Volume 131, Number 6, September 2020
|Number of page(s)||7|
|Published online||13 October 2020|
Measurement-device–independent quantum secure direct communication: Direct quantum communication with imperfect measurement device and untrusted operator
School of Science, Nanjing University of Science and Technology - Nanjing 210094, China
Received: 17 August 2020
Accepted: 16 September 2020
Quantum secure direct communication (QSDC) enables direct message transmission over quantum channels. Loopholes involved in practical apparatus, particularly nonideal measurement devices, provide a potential interface for attacking practical quantum communication. Measurement-device–independent (MDI) QSDC protocols deal with all side-channel attacks on practical measurement devices and directly transmit secret messages over classical channels with both integrity and eavesdropper detection and prevention. We review the recent development of MDI QSDC protocols using both single photons and entangled photon pairs. These two types of MDI QSDC protocols are useful for their respective distinct characters and can be generalized to perform more interesting communication networks.
PACS: 03.67.Hk – Quantum communication / 03.67.Dd – Quantum cryptography and communication security
© 2020 EPLA
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