Sandelman Software Works vanderstok consultancy Cisco Systems IoTconsultancy.nl This document defines a protocol to securely assign a Pledge to an owner and to enroll it into the owner's network. The protocol uses an artifact that is signed by the Pledge's manufacturer. This artifact is known as a "voucher". This document builds upon the work in [RFC8366] and [BRSKI], but defines an encoding of the voucher in CBOR rather than JSON, and enables the Pledge to perform its transactions using CoAP rather than HTTPS. The use of Raw Public Keys instead of X.509 certificates for security operations is also explained.