Applying QKD to improve next-generation network infrastructures

López, Víctor and Pastor, Antonio and López, Diego and Aguado Martín, Alejandro and Martín Ayuso, Vicente (2019). Applying QKD to improve next-generation network infrastructures. In: "European Conference on Networks and Communications (EuCNC 2019)", 18-21 Jun 2019, Valencia, España. pp. 283-288.


Title: Applying QKD to improve next-generation network infrastructures
  • López, Víctor
  • Pastor, Antonio
  • López, Diego
  • Aguado Martín, Alejandro
  • Martín Ayuso, Vicente
Item Type: Presentation at Congress or Conference (Article)
Event Title: European Conference on Networks and Communications (EuCNC 2019)
Event Dates: 18-21 Jun 2019
Event Location: Valencia, España
Title of Book: 2019 European Conference on Networks and Communications (EuCNC)
Date: 2019
ISSN: 2475-6490
Freetext Keywords: Security, Optical communications, Quantum key distribution
Faculty: E.T.S. de Ingenieros Informáticos (UPM)
Department: Lenguajes y Sistemas Informáticos e Ingeniería del Software
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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There is a great attention to quantum technologies in the ICT environment. In particular, when dealing with security matters, the most prominent quantum technology is Quantum Key Distribution (QKD). QKD allows the sharing of symmetric keys with information theoretic security (ITS, i.e. independently of the computational power of the attacker) between two remote network nodes. QKD is the only known method to share a key able to reach ITS. During the last two decades, there has been a tremendous technological progress in QKD research, that has led to the availability of QKD network demonstrators.Software Defined Networks (SDN) enables the automation of service provisioning within network operator infrastructures. With the advent of web-scale services and dynamic network requirements, operators can not anymore deploy their services based on manual intervention or using proprietary vendor solutions. Programmability is key in the next-generation network infrastructure and any new technology must be integrated with this paradigm. Let us highlight that this requirement is even more important with virtual environments, where a Virtual Network Function (VNF) can be deployed in any point-of-presence of the operator. The new 5G deployments will enable operators to have edge computing services supporting different capabilities, thus increasing even more the complexity to deliver services without any automation.In spite of the high potential of QKD, this technology has not yet found its path to wide adoption, commercialization and deployment. QKD is a physical technology that requires the existence of a quantum channel, a physical connection able to transmit quantum bits without perturbation, making hard its integration in networks. The aim of this document is to present how QKD can be deployed in next generation infrastructures, based on realistic scenarios. To do so, this paper describes the technological components of the solutions, as well as the use cases that motivate such effort. These use cases are described from a telecommunication provider's point of view, as they are the actors in charge of deploying QKD systems in their networks.

Funding Projects

Horizon 2020820466CiViQFundació Institut de Ciències FotòniquesContinuous Variable Quantum Communications

More information

Item ID: 67022
DC Identifier:
OAI Identifier:
DOI: 10.1109/EuCNC.2019.8802060
Official URL:
Deposited by: Memoria Investigacion
Deposited on: 11 May 2021 09:41
Last Modified: 11 May 2021 09:41
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