3.1 Design Overview

Roam WiFi networks have three main components: Roam protocol, the Decentralized WiFi system, and supporting applications/add-on services. Roam, a provider of secure and seamless OpenRoaming services, is leveraging VCs to enable secure WPA2/3-EAP authentication for its OpenRoaming Network.

Roam protocol is a data exchange protocol designed per the Trust Over IP (ToIP) stack as specified by the Linux Foundation. The protocol serves as a ToIP layer 3, and is fully compatible with the W3C’s DID standard and VC standard (to be officially released). It is built on permissionless blockchain systems and is agnostic against the underlying blockchain infrastructure.

The decentralized WiFi system includes three parts: RADIUS and Access Point Controller softwares which support DID/VC log-in; SDKs that allow mobile devices to login to OpenRoaming WiFi using DID/VC, and that gives mobile devices access to the on-chain data; and an OpenRoaming-supporting backend.

Supporting applications and add-on services include Gateway and AP softwares (based on OpenWRT), iOS and Android Apps, etc.