The attached PKI Detailed Design document outlines the detailed design for the Interim Public Key Infrastructure (PKI) service for coordinated Distribution Network Service Providers (DNSPs), provided by SwitchDin in partnership with DigiCert. This service is a key component for implementing Emergency Backstop mechanisms for Consumer Energy Resources (CER) in alignment with CSIP-AUS (Common Smart Inverter Profile – Australia) and IEEE 2030.5 2018 standards.

Coordinated DNSPs have opted for a shared Smart Energy Root CA (SERCA) and other PKI processes. This shared service model is closely aligned with the national PKI concepts and architecture envisioned for the National Energy PKI (NEPKI). The solution aims to provide the required PKI capability until the NEPKI solution is available, offering an easy transition path.

The PKI components and processes have been informed by the Gatekeeper Public Key Infrastructure Framework published by the Australian Government, Department of Finance.