Webauthn is a modern approach to hardware based authentication, consisting of a user with an authenticator device, a browser or client that interacts with the device, and a server that is able to generate challenges and verify the authenticator's validity.
This crate contains the definitions used by Webauthn's server (Relying party, RP) and the browser javascript (wasm) client components. In most cases you should not need to interact with this library directly, opting instead to use the implementations from Webauthn-RS directly.