An Overview of Geometrical Optics Restricted Quantum Key Distribution

Quantum key distribution (QKD) assures the theoretical information security from the physical layer by safely distributing true random numbers to the communication parties as secret keys while assuming an omnipotent eavesdropper (Eve). In recent years, with the growing applications of QKD in realist...

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Main Authors: Ziwen Pan, Ivan B. Djordjevic
Format: Article
Language:English
Published: MDPI AG 2021-07-01
Series:Entropy
Subjects:
Online Access:https://www.mdpi.com/1099-4300/23/8/1003
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author Ziwen Pan
Ivan B. Djordjevic
author_facet Ziwen Pan
Ivan B. Djordjevic
author_sort Ziwen Pan
collection DOAJ
description Quantum key distribution (QKD) assures the theoretical information security from the physical layer by safely distributing true random numbers to the communication parties as secret keys while assuming an omnipotent eavesdropper (Eve). In recent years, with the growing applications of QKD in realistic channels such as satellite-based free-space communications, certain conditions such as the unlimited power collection ability of Eve become too strict for security analysis. Thus, in this invited paper, we give a brief overview of the quantum key distribution with a geometrical optics restricted power collection ability of Eve with its potential applications.
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spelling doaj.art-12e4717cd2474c3bad857b03737f8eb62023-11-22T07:34:53ZengMDPI AGEntropy1099-43002021-07-01238100310.3390/e23081003An Overview of Geometrical Optics Restricted Quantum Key DistributionZiwen Pan0Ivan B. Djordjevic1Department of Electrical & Computer Engineering, College of Engineering, The University of Arizona, 1230 E Speedway Blvd, Tucson, AZ 85721, USADepartment of Electrical & Computer Engineering, College of Engineering, The University of Arizona, 1230 E Speedway Blvd, Tucson, AZ 85721, USAQuantum key distribution (QKD) assures the theoretical information security from the physical layer by safely distributing true random numbers to the communication parties as secret keys while assuming an omnipotent eavesdropper (Eve). In recent years, with the growing applications of QKD in realistic channels such as satellite-based free-space communications, certain conditions such as the unlimited power collection ability of Eve become too strict for security analysis. Thus, in this invited paper, we give a brief overview of the quantum key distribution with a geometrical optics restricted power collection ability of Eve with its potential applications.https://www.mdpi.com/1099-4300/23/8/1003quantum key distributionsatellitefree-space channel
spellingShingle Ziwen Pan
Ivan B. Djordjevic
An Overview of Geometrical Optics Restricted Quantum Key Distribution
Entropy
quantum key distribution
satellite
free-space channel
title An Overview of Geometrical Optics Restricted Quantum Key Distribution
title_full An Overview of Geometrical Optics Restricted Quantum Key Distribution
title_fullStr An Overview of Geometrical Optics Restricted Quantum Key Distribution
title_full_unstemmed An Overview of Geometrical Optics Restricted Quantum Key Distribution
title_short An Overview of Geometrical Optics Restricted Quantum Key Distribution
title_sort overview of geometrical optics restricted quantum key distribution
topic quantum key distribution
satellite
free-space channel
url https://www.mdpi.com/1099-4300/23/8/1003
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