Results 11 to 20 of about 1,260,747 (157)

Symmetric autocompensating quantum key distribution [PDF]

open access: green, 2004
We present quantum key distribution schemes which are autocompensating (require no alignment) and symmetric (Alice and Bob receive photons from a central source) for both polarization and time-bin qubits.
Zachary Walton   +4 more
openalex   +3 more sources

Decoy State Quantum Key Distribution [PDF]

open access: green, 2005
There has been much interest in quantum key distribution. Experimentally, quantum key distribution over 150 km of commercial Telecom fibers has been successfully performed. The crucial issue in quantum key distribution is its security. Unfortunately, all
Hoi‐Kwong Lo, Xiongfeng Ma, Kai Chen
openalex   +3 more sources

Qutrit-based semi-quantum key distribution protocol [PDF]

open access: yesQuantum Information Processing 20, 4 (2021), 2021
This article provides the unconditional security of a semi quantum key distribution (SQKD) protocol based on 3-dimensional quantum states. By deriving a lower bound for the key rate, in the asymptotic scenario, as a function of the quantum channel's noise, we find that this protocol has improved secret key rate with much more tolerance for noise ...
arxiv   +1 more source

Quantum key distribution with post-processing driven by physical unclonable functions [PDF]

open access: yesAppl. Sci. 14(1), 464, (2024), 2023
Quantum key-distribution protocols allow two honest distant parties to establish a common truly random secret key in the presence of powerful adversaries, provided that the two users share beforehand a short secret key. This pre-shared secret key is used mainly for authentication purposes in the post-processing of classical data that have been obtained
arxiv   +1 more source

Quantum Key Distribution [PDF]

open access: yes, 2011
This chapter describes the application of lasers, specifically diode lasers, in the area of quantum key distribution (QKD). First, we motivate the distribution of cryptographic keys based on quantum physical properties of light, give a brief introduction
Chan, Philip   +3 more
core   +2 more sources

Layered Quantum Key Distribution [PDF]

open access: yes, 2017
We introduce a family of QKD protocols for distributing shared random keys within a network of $n$ users. The advantage of these protocols is that any possible key structure needed within the network, including broadcast keys shared among subsets of ...
Huber, Marcus   +2 more
core   +2 more sources

Information Reconciliation for High-Dimensional Quantum Key Distribution using Nonbinary LDPC codes [PDF]

open access: yes, 2023
Information Reconciliation is an essential part of Quantum Key distribution protocols that closely resembles Slepian-Wolf coding. The application of nonbinary LDPC codes in the Information Reconciliation stage of a high-dimensional discrete-variable Quantum Key Distribution setup is proposed.
arxiv   +1 more source

Comment on "Quantum Key Distribution with Classical Bob" [PDF]

open access: yesPRL 102, 098901 (2009), 2009
In this comment, we present a frequency-shift attack on "quantum key distribution with classical Bob". This practical attack should also be considered in other two-way quantum key distribution protocols.
arxiv   +1 more source

Free-space quantum key distribution [PDF]

open access: yes, 1998
A working free-space quantum key distribution (QKD) system has been developed and tested over a 205-m indoor optical path at Los Alamos National Laboratory under fluorescent lighting conditions.
Buttler, W. T.   +7 more
core   +2 more sources

Quantum key distribution protocol based on contextuality monogamy [PDF]

open access: yesPhys. Rev. A 95, 062333 (2017), 2016
The security of quantum key distribution protocols hinges upon features of physical systems that are uniquely quantum in nature. We explore the role of quantumness as qualified by quantum contextuality, in quantum key distribution schemes. We present a new quantum key distribution protocol whose security depends uponthe KCBS inequality and ...
arxiv   +1 more source

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