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"The road to quantum-safe networks"

Navigating the Quantum Shift: A Strategic Framework for Future-Proof Network Security

Increasingly powerful quantum computers make the threat to current cryptographic systems loom large. The timeline for a cryptographically relevant quantum computer (CRQC) is uncertain, but the cybersecurity migration needed to counter this threat is the largest we’ve ever faced and will take considerable time and effort.

Telecommunication networks, responsible for transporting our data, are a crucial element in this equation. However, there is no one-size-fits-all solution to make a network “quantum-safe”.
In this paper, we therefore set out to provide some high-level structure and clarification to the quantum migration challenge that network operators are facing. We will address key technical concepts and how they fit the bigger picture of solutions. For example, we will talk about symmetric vs. asymmetric cryptography, post-quantum cryptography, quantum-key distribution, and hybrid solutions. We will also look more closely at the quantum threats and vulnerabilities in current networks, and we will point out the first steps to take and the tools you can use on the way to mitigation. The paper is intended to provide some clarity in the jungle of quantum security technologies and particularly, their impact on telecommunication networks.

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