01▲Sentinel-Based Failover for QKD-Augmented IPsec Tunnels arxiv.org Do I need QKD for IPsec here, or just a sentinel to keep StrongSwan handshakes limping along when the quantum link dies?arxivipseckey-exchangelatticenetwork-securitypqcqkdstrongswanvpn0 pts/dford/4 days ago/4 comments