Quantum secure direct communication based on single-photon Bell-state measurement

Li, Tao; Long, Gui Lu

doi:10.1088/1367-2630/ab8ab5

Cited by 104 publications

(31 citation statements)

References 81 publications

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“…We performed the channel-security detection in QSDC based on single photons 14,23 ("Materials and methods"). The first step, as mentioned above, is to ensure the security for the transmission in the quantum channel, and then any two users in the network continue the connection step if the communication environment is demonstrated to be safe [24][25][26][27] .…”

Section: Resultsmentioning

confidence: 99%

A 15-user quantum secure direct communication network

Huang

et al. 2021

Light Sci Appl

142

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Quantum secure direct communication (QSDC) based on entanglement can directly transmit confidential information. However, the inability to simultaneously distinguish the four sets of encoded entangled states limits its practical application. Here, we explore a QSDC network based on time–energy entanglement and sum-frequency generation. In total,15 users are in a fully connected QSDC network, and the fidelity of the entangled state shared by any two users is >97%. The results show that when any two users are performing QSDC over 40 km of optical fiber, the fidelity of the entangled state shared by them is still >95%, and the rate of information transmission can be maintained above 1 Kbp/s. Our result demonstrates the feasibility of a proposed QSDC network and hence lays the foundation for the realization of satellite-based long-distance and global QSDC in the future.

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Section: Resultsmentioning

confidence: 99%

A 15-user quantum secure direct communication network

Huang

et al. 2021

Light Sci Appl

142

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“…Based on this platform it is possible to use a cryptographic protocol with fewer channels like QKSC, which results in a simplification of the Cubesat and the buoys associated with each submarine. Thus, the combination established between the aforementioned Cubesat and the QKSC protocol (with a dynamic key like the one explained above) seems to be the ideal solution, although several alternatives arise taking into account the transmission of the first key, and the reduced footprint generated by that Cubesat: a) the first key is not transmitted, but was pre-agreed before the submarines set sail, b) the first key is transmitted directly to both allied submarines thanks to a multi-photon source 65 and without any protocol, emphasizing the little footprint, c) similar to the previous case but using a single-photon source [79][80][81] , d) the first key is transmitted via a QKD protocol using a multi-photon source 65 , emphasizing the little footprint again, or e) similar to the previous case but using a single-photon source [79][80][81] .…”

Section: Analysis Of Outcomesmentioning

confidence: 99%

Quantum Key Secure Communication Protocol via Enhanced Superdense Coding

Mastriani

2021

Preprint

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In the last decades, Quantum Cryptography has become one of the most important branches of Quantum Communications with a particular projection over the future Quantum Internet. It is precisely in Quantum Cryptography where two techniques stand out above all others: Quantum key Distribution (QKD), and Quantum Secure Direct Communication (QSDC). The first one has four loopholes relating to the exposure of the key at all points in the communication system, while the second has clear practical implementation problems in all its variants currently in use. Here, we present an alternative to QKD and QSDC techniques called quantum key secure communication (QKSC) protocol with a successful implementation on two free access quantum platforms.

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“…Molecular communication suffers from the risks of malicious behavior [10], encryption [11], and authentication [12]. The quantum communication also suffers from privacy issues such as encryption [13] and communication [14]. The current emerging technology of blockchain is prone to authentication [15], access control [16], and communication issues [17].…”

Section: Introductionmentioning

confidence: 99%

Multi-cell, Multi-user, and Multi-carrier Secure Communication Using Non-Orthogonal Signals’ Superposition with Dual-Transmission for IoT in 6G and Beyond

Zia

Furqan

Hamamreh

2021

RS Open Journal on Innovative Communication Technologies

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Considering the advancements of the internet of things (IoT) in 6G and beyond communications, data transmission security in IoT devices has received extensive interest because of their significant features, such as low computational complexity, led by low power requirements. In such devices, the conventional cryptographic techniques may fail to provide secure communication. To fight this drawback, physical layer security (PLS) has remarkable potential to provide security solutions suitable for such applications. In this work, a highly effective PLS technique is proposed for providing secure communication against external and internal eavesdroppers in a downlink multi-cell, multi-user, and multicarrier IoT communication system. In our proposed system, we considered two base stations, where each base station uses a single radio frequency (RF) chain to link two antennas that are used for the transmission of data. Further, we transmit the data in two rounds, and each round of transmission occurs through a single active antenna of each base station. A different antenna is used for each round of transmission to communicate with two single antenna IoT devices/users in the presence of a passive eavesdropper. In the proposed algorithm, frequency selective channel-based pre-coder matrices and the dual transmission approach are jointly employed. The dual-transmission is performed simultaneously from two base stations to provide security against internal and external eavesdroppers. The proposed system is suitable for IoT-based applications. Also, the potential capabilities of our proposed algorithm are proved by extensive mathematical and simulation analysis.

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Quantum secure direct communication based on single-photon Bell-state measurement

Cited by 104 publications

References 81 publications

A 15-user quantum secure direct communication network

A 15-user quantum secure direct communication network

Quantum Key Secure Communication Protocol via Enhanced Superdense Coding

Multi-cell, Multi-user, and Multi-carrier Secure Communication Using Non-Orthogonal Signals’ Superposition with Dual-Transmission for IoT in 6G and Beyond

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