Results 61 to 70 of about 929,226 (361)

Twin-field quantum key distribution over a 511 km optical fibre linking two distant metropolitan areas [PDF]

open access: yesNature Photonics, 2021
The basic principle of quantum mechanics1 guarantees the unconditional security of quantum key distribution (QKD)2–6 at the cost of forbidding the amplification of a quantum state.
Jiu-Peng Chen   +18 more
semanticscholar   +1 more source

Zero-error attack against coherent-one-way quantum key distribution

open access: yesNew Journal of Physics, 2021
Coherent-one-way (COW) quantum key distribution (QKD) held the promise of distributing secret keys over long distances with a simple experimental setup. Indeed, this scheme is currently used in commercial applications.
Róbert Trényi, Marcos Curty
doaj   +1 more source

Quantum Key Distribution Using Quantum Faraday Rotators [PDF]

open access: yes, 2007
We propose a new quantum key distribution (QKD) protocol based on the fully quantum mechanical states of the Faraday rotators. The protocol is unconditionally secure against collective attacks for multi-photon source up to two photons on a noisy ...
Bae J Acin A   +6 more
core   +1 more source

Increasing the Protocol Gain of Quantum Cryptography [PDF]

open access: yesEngineering and Technology Journal, 2013
Quantum cryptography is a technique to distribute a sequence of truly random and unconditionally secure bits over a secure communication by applying the phenomena of quantum physics.
Firas Ali Sabir Al-Juboori   +2 more
doaj   +1 more source

Twin-field quantum key distribution with passive-decoy state

open access: yesNew Journal of Physics, 2020
Twin-Field quantum key distribution (TF-QKD) and its variants, e.g. phase-maching QKD, sending-or-not-sending QKD, and no phase post-selection TFQKD promise high key rates at long distance to beat the rate distance limit without a repeater.
Jun Teng   +10 more
doaj   +1 more source

Quantum key distribution with untrusted detectors [PDF]

open access: yesPhysical Review A, 2015
Side-channel attacks currently constitute the main challenge for quantum key distribution (QKD) to bridge theory with practice. So far two main approaches have been introduced to address this problem, (full) device-independent QKD and measurement-device-independent QKD. Here we present a third solution that might exceed the performance and practicality
Lorena Rebón   +10 more
openaire   +5 more sources

Measurement-device-independent quantum key distribution. [PDF]

open access: yesPhysical Review Letters, 2011
How to remove detector side channel attacks has been a notoriously hard problem in quantum cryptography. Here, we propose a simple solution to this problem--measurement-device-independent quantum key distribution (QKD).
H. Lo, M. Curty, B. Qi
semanticscholar   +1 more source

A Review of Quantum Key Distribution Protocols in the Perspective of Smart Grid Communication Security

open access: yesIEEE Systems Journal, 2022
Smart grid depends on an advanced communication network to collect information from the power grid, and to disseminate control commands to the control devices.
P. Kong
semanticscholar   +1 more source

Practical continuous-variable quantum key distribution with composable security [PDF]

open access: yesNature Communications, 2021
A quantum key distribution (QKD) system must fulfill the requirement of universal composability to ensure that any cryptographic application (using the QKD system) is also secure.
N. Jain   +12 more
semanticscholar   +1 more source

A Review of Security Evaluation of Practical Quantum Key Distribution System

open access: yesEntropy, 2022
Although the unconditional security of quantum key distribution (QKD) has been widely studied, the imperfections of the practical devices leave potential loopholes for Eve to spy the final key.
S. Sun, Anqi Huang
semanticscholar   +1 more source

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