The most prominent protocol that should be supported along with SAML in the R&E sector is OpenID Connect (OIDC). OpenID Connect is becoming a widely accepted standard in both the commercial and the R&E sectors.
Relying Parties, or Clients, registration to the OP (OIDC Provider) is a fundamental part of the OIDC workflow, and most of all Dynamic Client Registration (1). Dynamic Client Registration is a powerful and effective way to enable new relying parties, but it has no attached processes to define the trust between the client and the OP.
OpenID Connect Federation 1.0 Draft 3 (2).
To be published
|https://webconf.vc.dfn.de/aarc-jra1||First AARC2 JRA1.3 meeting||2017-07-21 AARC2-JRA1.3B Meeting notes|