SCION Control Plane PKI

This document presents the trust concept and design of the SCION _Control Plane Public Key Infrastructure (CP-PKI)_. SCION (Scalability, Control, and Isolation On Next-generation networks) is a path-aware, inter-domain network architecture that relies on the CP-PKI to handle cryptographic material, authenticate control plane messages used to securely disseminate path information. This specification introduces its localized trust model, anchored in Isolation Domains (ISDs). It defines the distinct certificate types, and specifies the structure, format and lifecycle of the Trust Root Configuration (TRC). Furthermore, it provides practical guidelines for deploying and maintaining the CP-PKI infrastructure. This document contains new approaches to secure path aware networking. It is not an Internet Standard, has not received any formal review of the IETF, nor was the work developed through the rough consensus process. The approaches offered in this work are offered to the community for its consideration in the further evolution of the Internet.