Year: 2025
Type: article
Abstract: Secure communication makes the widespread use of telecommunication networks and services possible. With the constant progress of computing and mathematics, new cryptographic methods are being diligently developed. Quantum Key Distribution (QKD) is a promising technology that provides an Information-Theoretically Secure (ITS) solution to the secret-key agreement problem between two remote parties. QKD networks based on trusted relay nodes are built to provide service to a larger number of parties at arbitrary distances. They function as an add-on technology to traditional networks, generating, managing, distributing, and supplying ITS cryptographic keys. Since key resources are limited, integrating QKD network services into critical infrastructures necessitates effective key management. As a result, this article provides a comprehensive review of key management approaches for trusted-relay QKD networks. They are analyzed to facilitate the identification of potential strategies and accelerate the future development of QKD networks.
Source: ACM Computing Surveys
DOI: 10.1145/3730575
Language: English
Subfield: Artificial Intelligence
Field: Computer Science
Domain: Physical Sciences
Open Access status: hybrid
Funders: Ministerstvo Vnitra České Republiky, European Commission, National Natural Science Foundation of China, Ministerstvo Školství, Mládeže a Tělovýchovy, Korea Institute of Science and Technology Information, Ostravská Univerzita v Ostravě, National Key Research and Development Program of China
OpenAlex ID: W4409591291