Results 81 to 90 of about 460,882 (215)

High-Dimensional Semiquantum Cryptography

IEEE Transactions on Quantum Engineering, 2020
A semiquantum key distribution (SQKD) protocol allows two users, one of whom is restricted in their quantum capabilities to being nearly classical, to establish a shared secret key, secure against an all-powerful adversary.
Hasan Iqbal, Walter O. Krawec
doaj   +1 more source

Feasibility of satellite quantum key distribution

New Journal of Physics, 2009
23 pages, 17 ...
BONATO C, TOMAELLO A, DA DEPPO V, NALETTO, GIAMPIERO, VILLORESI, PAOLO   +4 more
openaire   +7 more sources

Simple method for asymmetric twin-field quantum key distribution

New Journal of Physics, 2020
Twin-field quantum key distribution (TF-QKD) can beat the linear bound of repeaterless QKD systems. After the proposal of the original protocol, multiple papers have extended the protocol to prove its security.
Wenyuan Wang, Hoi-Kwong Lo
doaj   +1 more source

Nonorthogonal decoy-state Quantum Key Distribution

, 2005
In practical quantum key distribution (QKD), weak coherent states as the photon sources have a limit in secure key rate and transmission distance because of the existence of multiphoton pulses and heavy loss in transmission line.
Bennett C H, Brassard G, Cai Q Y, Cai Q Y, Deng H L, Fang Xi-Ming, Gottesman D, Li Jing-Bo, Lo H K, Lü H, Lütkenhaus N, Lütkenhaus N, Ma X F, Wang X B   +13 more
core   +1 more source

Implementation Security in Quantum Key Distribution

Advanced Quantum Technologies
AbstractThe problem of implementation security in quantum key distribution (QKD) refers to the difficulty of meeting the requirements of mathematical security proofs in real‐life QKD systems. Here, a succint review is provided on this topic, focusing on discrete‐variable QKD setups.
Zapatero, Víctor, Navarrete, Álvaro, Curty, Marcos   +2 more
openaire   +3 more sources

Can Quantum Key Distribution Be Secure [PDF]

, 2014
The importance of quantum key distribution as a cryptographic method depends upon its purported strong security guarantee. The following gives reasons on why such strong security guarantee has not been validly established and why good QKD security is ...
Yuen, Horace P.
core  

Hands-On Quantum Cryptography: Experimentation with the B92 Protocol Using Pulsed Lasers

Photonics
Quantum cryptography continues to be an area of significant research and educational interest. Here, a straightforward and reliable approach to both the experimental and theoretical aspects of quantum key distribution is presented, tailored for senior ...
Sara P. Gandelman, Alona Maslennikov, Georgi Gary Rozenman   +2 more
doaj   +1 more source

Frequency-bin entanglement-based Quantum Key Distribution

npj Quantum Information
Entanglement is an essential ingredient in many quantum communication protocols. In particular, entanglement can be exploited in quantum key distribution (QKD) to generate two correlated random bit strings whose randomness is guaranteed by the nonlocal ...
Noemi Tagliavacche, Massimo Borghi, Giulia Guarda, Domenico Ribezzo, Marco Liscidini, Davide Bacco, Matteo Galli, Daniele Bajoni   +7 more
doaj   +1 more source

On the (relation between) efficiency and secret key rate of QKD

Scientific Reports
The processes of evaluation and comparison play a vital role in the development of a scientific field. In the field of quantum cryptography (especially quantum key distribution, QKD), the so-called secret key rate is used for characterizing the ...
Georgi Bebrov
doaj   +1 more source

Daylight Quantum Key Distribution over 1.6 km [PDF]

, 2000
W. T. Buttler, Richard Hughes, S. K. Lamoreaux, G. L. Morgan, J. E. Nordholt, C. G. Peterson   +5 more
openalex   +1 more source