Universal Serial Bus interfaces for data and power - Part 1-4: Common components - USB Type-C™ Authentication Specification
IEC 62680-1-4:2018 provides a means for authenticating Products with regard to identification and configuration. Authentication is performed via USB Power Delivery message communications and/or via USB data bus control transactions.
This specification defines the architecture and methodology for unilateral Product Authentication. It is intended to be fully compatible with and extend existing PD and USB infrastructure. Information is provided to allow for Policy enforcement, but individual Policy decisions are not specified.