Work

Quantum-secure Software Network Environments for Telco Operators

Year: 2026

Type: conference-paper

Abstract: The transition towards quantum-safe secure communications requires current network infrastructures to support the coexistence of multiple cryptographic technologies. In this context, crypto-agility becomes a key requirement, enabling the coordinated use of Quantum Key Distribution (QKD), Post-Quantum Cryptography (PQC), and classical cryptographic mechanisms during a progressive migration process. This paper presents a general, standards-based architecture for crypto-agile IPsec service provisioning in Software-Defined Networking (SDN) environments. The proposal combines modular functional blocks that support the integration of QKD-, PQC-,and classical-derived key material under a common operational framework. The architecture builds on existing specifications, including RFC 9061 and ETSI GS QKD 004. Rather than focusing on implementation details or performance evaluation, this work describes the needs addressed by the architecture, its main components, and the operational workflows supporting secure tunnel establishment, rekeying, and attestation-related actions.

Source: Zenodo (CERN European Organization for Nuclear Research)

DOI: 10.5281/zenodo.22143488