Mastering Zero Trust Tunneling for Edge Cloud (1582)
Technical Overview
Zero‑trust tunneling for edge cloud (specification 1582) demands a layered approach: identity‑centric authentication, micro‑segmentation, and encrypted overlay networks that survive heterogeneous edge topologies. This article walks through the kernel‑level tuning, control‑plane design, and data‑plane optimizations required to achieve sub‑millisecond latency while maintaining strict policy enforcement.
Key Design Pillars
- Mutual TLS with short‑lived certificates – rotates every 5 min via an automated PKI.
- eBPF‑based packet classification – enforces per‑workload policies without kernel modules.
- Stateless control plane – leverages CRDs in Kubernetes for declarative tunnel definitions.
eBPF/XDP kernel filter evaluates TCP/UDP frames directly on server NIC.