Relying party

The relying party is the middleman in the communication between the client and the FIDO service (i.e. the web application using the FIDO2 SDK).

The relying party propagates the FIDO2 messages to the service implemented, based on the FIDO2 SDK, to perform registration and authentication operations. The WebAuthn (FIDO2) protocol defines the support for the Token Binding feature that the FIDO2 SDK implements.

Consider passing any relevant HTTP headers to the FIDO2 service.

With the SDK, every instance is configured to support a given relying party; for multiple relying parties, multiple instances of the SDK should be defined. Each instance should have its own configuration.