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Sentinel-Based Failover for QKD-Augmented IPsec Tunnels

Sentinel-based failover mechanism maintains IPsec tunnel availability when QKD infrastructure fails, solving a practical resilience gap in hybrid quantum-safe deployments.

Summary written by editorial AI · Source link below

Filed by arXiv Crypto & Security1 min readRead at source ↗

arXiv:2609.01121v1 Announce Type: cross Abstract: Quantum-safe IPsec through hybrid key establishment is practical, but creates a critical operational challenge: how to maintain tunnel availability when the QKD infrastructure becomes unavailable. In this paper, we present the design, implementation, and experimental evaluation of a quantum-safe key establishment mechanism for an IPsec tunnel that combines X25519, ML-KEM, and ETSI GS QKD 014 keys through the RFC 9370 multiple key exchange mechan

Editorial Analysis

Why it matters

European enterprises piloting quantum-safe networking need failover mechanisms that preserve tunnel availability without silently downgrading cryptographic assurance.

What to do

Include QKD failover requirements in your quantum-safe networking roadmap to avoid availability blind spots.

Forward-looking interpretation drafted by editorial AI under human review — not a reproduction of the source. See methodology.

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Read the full report at arXiv Crypto & Security

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