Realistic QKD system hacking and security

Fred Daneshgaran; Marina Mondin; Judy Kupferman; Shlomi Arnon; Marco Genovese; Ivo Degiovanni; Alice Meda; Francesco Di Stasio; Inam Bari

doi:10.1117/12.2321519

18 September 2018 Realistic QKD system hacking and security

Fred Daneshgaran, Marina Mondin, Judy Kupferman, Shlomi Arnon, Marco Genovese, Ivo Degiovanni, Alice Meda, Francesco Di Stasio, Inam Bari

Author Affiliations +

Proceedings Volume 10771, Quantum Communications and Quantum Imaging XVI; 107710T (2018) https://doi.org/10.1117/12.2321519
Event: SPIE Optical Engineering + Applications, 2018, San Diego, California, United States

Abstract

This paper discusses the most relevant aspects of the practical implementation of a long-range Quantum Key Distribution (QKD) link with trusted nodes, achieving the highest possible secret key rate generation within the security and system level constraints. To this purpose, the implementation of an end-to-end QKD system will be discussed, including implementation aspects from physical transmission of photon states through a standard telecommunications grade optical fiber, to consideration of device imperfections, information reconciliation protocols. In addition, since there are circumstances when a fiber optical link may not be available, we will also discuss a test bench implementation of a Free Space Optics (FSO) QKD link.

Furthermore, in spite of the fact that Discrete Variable QKD (DV-QKD) systems have reached a maturity level that allows their potential full realization and implementation for creation of a secure network backbone for key distribution in nations, in realistic links DV-QKD is really limited by technology and physical constraints associated with construction of reliable high rate single photon (or at least low photon count) sources, and of fast and reliable single photon detectors with very low dark count rates. In these cases, the use of Continuous Variable QKD (CV-QKD) schemes may be advantageous. For this reason the paper also discusses the problem of information reconciliation in CVQKD scenarios, showing that in long distance links the sign of the received Gaussian samples contains the largest fraction of information, leading to the design of an Unequal Error Protection (UEP) reverse reconciliation scheme.

Citation Download Citation

Fred Daneshgaran, Marina Mondin, Judy Kupferman, Shlomi Arnon, Marco Genovese, Ivo Degiovanni, Alice Meda, Francesco Di Stasio, and Inam Bari "Realistic QKD system hacking and security", Proc. SPIE 10771, Quantum Communications and Quantum Imaging XVI, 107710T (18 September 2018); https://doi.org/10.1117/12.2321519

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