DoD Zero Trust Architecture: Edge Boundary Enforcement Blueprint

1. Executive Summary & Statutory Authority

The transition from legacy castle-and-moat perimeter defense to an uncompromising Zero Trust Architecture (ZTA) is mandated by the Department of Defense (DoD) CIO Zero Trust Strategy and Roadmap, Federal Zero Trust Strategy (OMB M-22-09), and NIST SP 800-207.

Under the "never trust, always verify" doctrine, this engineering blueprint defines the reference deployment for DoD Impact Level 4 (IL4), IL5, and IL6 sovereign cloud workloads, ensuring continuous cryptographic verification of identity, device health, and network state prior to granting access to mission data.

2. Seven-Pillar DoD Alignment Matrix

3. Reference Topology & Network Boundary Flow

+-----------------------------------------------------------------------------------+
|                            UNTRUSTED EXTERNAL WAN / DISA DISN                     |
+-----------------------------------------------------------------------------------+
                                         |
                                         v
                         +-------------------------------+
                         | F5 BIG-IP / AWS ALB (TLS 1.3) |
                         +-------------------------------+
                                         | (mTLS Ingress + CAC/PIV Validation)
                                         v
                         +-------------------------------+
                         | Envoy Policy Enforcement Point |<---> [ Policy Decision Point ]
                         +-------------------------------+      [ (PDP) Open Policy Agent]
                                         | (Approved Token)
                                         v
            +---------------------------------------------------------+
            |               SECURE KUBERNETES WORKLOAD MESH           |
            |                                                         |
            |   [ Pod A: Capture Service ]                            |
            |              |                                          |
            |              | (Cilium eBPF mTLS / SPIFFE ID)           |
            |              v                                          |
            |   [ Pod B: Mission Analytics ]                          |
            |              |                                          |
            |              v                                          |
            |   [ Encrypted DB: FIPS 140-3 Object Storage ]           |
            +---------------------------------------------------------+

4. Implementation Manifest: Cilium eBPF Strict Default-Deny

To eliminate unauthorized lateral movement across sovereign workloads, deploy this Kubernetes network policy enforcing cryptographic SPIFFE identity verification and default-deny:

apiVersion: "cilium.io/v2"
kind: CiliumNetworkPolicy
metadata:
  name: "enforce-zta-strict-zero-lateral"
  namespace: "tactical-workloads"
spec:
  endpointSelector:
    matchLabels:
      app: "mission-telemetry"
  ingress:
  - fromEndpoints:
    - matchLabels:
        app: "ingress-gateway"
    toPorts:
    - ports:
      - port: "8443"
        protocol: TCP
      rules:
        http:
        - method: "POST"
          path: "/api/v1/telemetry"
    authentication:
      mode: "required"
      type: "spire"
  egress:
  - toEndpoints:
    - matchLabels:
        app: "fips-vault-backend"
    toPorts:
    - ports:
      - port: "8200"
        protocol: TCP

5. Deployment Verification Checklist

• CAC/PIV Ingress Validation: Verify that clients without approved DoD Root CA certificate chains are severed at the TCP handshake.
• eBPF Packet Inspection: Execute cilium monitor --type drop to confirm zero non-whitelisted cross-pod packets transit the kernel interface.
• FIPS 140-3 Validation: Confirm kernel crypto modules (/proc/sys/crypto/fips_enabled) return 1.
• Automated Telemetry Forwarding: Validate audit logs stream to centralized SIEM in accordance with OMB M-21-31 EL3 requirements within 5 seconds of event generation.