Security of quantum communications in oceanic turbulence

Zuo, Zhiyue; Wang, Yijun; Mao, Yiyu; Ruan, Xinchao; Guo, Ying

doi:10.1103/physreva.104.052613

Cited by 16 publications

(19 citation statements)

References 65 publications

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“…According to [41], the impact of underwater turbulence on CVQKD system can be reflected in the transmittance. When the communication distance is long, in other words, when T is low, the PS-based scheme has a higher performance than the original scheme.…”

Section: Performance Analysismentioning

confidence: 99%

Photon subtraction-based continuous-variable measurement-device-independent quantum key distribution with discrete modulation over a fiber-to-water channel

Yu¹,

Li²,

Ding³

et al. 2022

Commun. Theor. Phys.

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We propose a discrete-modulated continuous-variable measurement-device-independent quantum key distribution protocol over a fiber-to -water channel. Different from optical fiber, the underwater channel has more severe optical attenuation because of optical absorption and scattering, and it would reduce the maximum communication distance. To enhance the performance of the protocol, the photon subtraction operation is implemented at the modulator side. We carried out performance simulation in two different kinds of seawater channel, and the result shows that the scheme with photon subtraction has longer secure communication distance under certain conditions.

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Section: Performance Analysismentioning

confidence: 99%

Photon subtraction-based continuous-variable measurement-device-independent quantum key distribution with discrete modulation over a fiber-to-water channel

Yu¹,

Li²,

Ding³

et al. 2022

Commun. Theor. Phys.

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Section: B Security Of Underwater Wireless Communicationmentioning

confidence: 99%

“…On the other hand, recently, Quantum Key Distribution (QKD) has been explored theoretically based on opticalbased underwater WCN [101,[103][104][105][106]. QKD is a promising mechanism where secret keys are generated based quantum mechanical properties, such as entanglement [100][101][102][103][104][105][106]; the no-cloning theorem 1 [174] then guarantees that these keys cannot be intercepted. QKD is divided into Discrete Variable QKD (DV-QKD) [175][176][177] and Continuous Variable QKD (CV-QKD) [178][179][180][181], where the latter has recently been preferred due to easy implementation and higher channel capacity [101,[103][104][105][106].…”

Section: B Security Of Underwater Wireless Communicationmentioning

confidence: 99%

Security of Underwater and Air-Water Wireless Communication

Aman¹,

Al-Kuwari²,

Kumar³

et al. 2022

Preprint

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We present a first detailed survey that focuses on the security challenges faced by the underwater and air-water (A-W) wireless communication networks (WCNs), as well as the countermeasures proposed to date. Specifically, we provide a detailed literature review of the various kinds of active and passive attacks which hamper the confidentiality, integrity, authentication and availability of both underwater and A-W WCNs. For clarity of exposition, this survey paper is mainly divided into two parts. The first part of the paper is essentially a primer on underwater and A-W WCNs whereby we outline the benefits and drawbacks of the three promising underwater and A-W candidate technologies: radio frequency (RF), acoustic, and optical, along with channel modelling. To this end, we also describe the indirect (relay-aided) and direct mechanisms for the A-W WCNs along with channel modelling. This sets the stage for the second part (and main contribution) of the paper whereby we provide a thorough comparative discussion of a vast set of works that have reported the security breaches (as well as viable countermeasures) for many diverse configurations of the underwater and A-W WCNs. Finally, we highlight some research gaps in the open literature and identify some open problems for the future work.

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“…As shown in Equation ( 2), the statistical parameters T and √ T represents the fading effects of uplink on quantum state. To describe these parameters, we apply the elliptic-beam model [29,30], which provides accurate agreement with the experimental data under weak and strong turbulence. In this model, the receiving beam is assumed to be an elliptic deformation, which can be expressed by a random vector…”

Section: Uplink Cv-qkdmentioning

confidence: 99%

Noiseless Attenuation for Continuous-Variable Quantum Key Distribution over Ground-Satellite Uplink

Yin

Wang

et al. 2021

Applied Sciences

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Satellite-based quantum key distribution (QKD) has lately received considerable attention due to its potential to establish a secure global network. Associated with its application is a turbulent atmosphere that sets a notable restriction to the transmission efficiency, which is especially challenging for ground-to-satellite uplink scenarios. Here, we propose a novel noiseless attenuation (NA) scheme involving a zero-photon catalysis operation for source preparation to improve the performance of continuous-variable (CV) QKD over uplink. Numerical analysis shows that the NA-based CV-QKD, under attenuation optimization, outperforms the traditional CV-QKD, which is embodied in extending the allowable zenith angle while improving the effective communication time. Attributing to characteristics of the attenuation optimization, we find that the NA-involved source preparation improves the security bound by relatively reducing the amount of information available to eavesdroppers. Taking the finite-size effect into account, we achieve a tighter bond of security, which is more practical compared with the asymptotic limit.

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Security of quantum communications in oceanic turbulence

Cited by 16 publications

References 65 publications

Photon subtraction-based continuous-variable measurement-device-independent quantum key distribution with discrete modulation over a fiber-to-water channel

Photon subtraction-based continuous-variable measurement-device-independent quantum key distribution with discrete modulation over a fiber-to-water channel

Security of Underwater and Air-Water Wireless Communication

Noiseless Attenuation for Continuous-Variable Quantum Key Distribution over Ground-Satellite Uplink

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