Optimizing BGP Anycast and Multipath Routing to Amortize Post-Quantum Network Latency

Core engineering and protocols for Latency-Aware Edge Routing.

Mitigating the Multi-RTT Latency Penalty

Because post-quantum handshakes exchange larger public keys and ciphertexts (1.8 KB to 3.5 KB), any network packet loss or multi-hop latency on long-distance transoceanic links causes noticeable user-facing delays. Terminating connections deep in centralized datacenters degrades application responsiveness.

Distributed Edge Termination Architecture

PQCRoute deploys BGP Anycast edge routing: user connections are terminated at the nearest physical edge Point of Presence (PoP) within milliseconds. The edge node terminates the client post-quantum handshake and forwards data over pre-warmed, permanently encrypted private fiber backbones to origin application clusters, achieving optimal global application performance.

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