Demonstration of provably secure quantum key distribution (QKD)

Venkat R. Dasari; Ronald J. Sadlier; Billy E. Geerhart III; Travis S. Humble

doi:10.1117/12.2303653

9 May 2018 Demonstration of provably secure quantum key distribution (QKD)

Venkat R. Dasari, Ronald J. Sadlier, Billy E. Geerhart III, Travis S. Humble

Author Affiliations +

Proceedings Volume 10652, Disruptive Technologies in Information Sciences; 106520A (2018) https://doi.org/10.1117/12.2303653
Event: SPIE Defense + Security, 2018, Orlando, FL, United States

Abstract

Optimized Quantum Key Distribution (QKD) protocols revolutionize the cyber security by leveraging the quantum phenomenon for development of unbreakable security. Configurable quantum networks are necessary for accessible quantum applications amongst multiple users. Quantum key distribution is particularly interesting because of the many ways in which the key exchange can be carried out. Keys can be exchanged by encoding the key into a weak photon source using classical methods, or the keys can be exchanged using pairs of photons entangled at the source, or the keys can even be exchanged by encoding with classical hardware at the source with an entangling measurement which occurs at the photons destination. Each type of quantum key exchange has its own requirements that must be met for point-to-point implementations which makes it exceedingly difficult to implement multi-node quantum networks. We propose a programmable network model to time encoded quantum key distribution; this version of QKD sends entangled photons to two users and the hardware is setup such that the relative time shift in the coincident photons encodes which measurement basis was used. The protocols were first simulated by modifying previous software which used the CHP quantum simulator, and then a point-to-point key exchange was setup in hardware to demonstrate the time encoding aspects of the protocol.

Citation Download Citation

Venkat R. Dasari, Ronald J. Sadlier, Billy E. Geerhart III, and Travis S. Humble "Demonstration of provably secure quantum key distribution (QKD)", Proc. SPIE 10652, Disruptive Technologies in Information Sciences, 106520A (9 May 2018); https://doi.org/10.1117/12.2303653

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

;

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
7 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Quantum key distribution

Quantum information

Quantum networks

Relays

Device simulation

Quantum communications

Switches

Show All Keywords

Keywords/Phrases

Search In:

Publication Years