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All things auth.

Identity Providers (IdP)

Example identity providers that are great for development purposes include:


Another way to auth, requires an authenticator. It can

  • hold and generate a key pair
  • it can expose the key pair such that other software can access it

📚 Glossary of Terms

There are a bunch of these kinds of glossaries. This is just the lil one in my notes.

  • IdP - Identity Provider - The single source of truth for a set of users.
  • SP - Service Provider - An application that provides a service to users that the IdP tells it about.

In case it wasn't obvious, there is a bit of a focus on SAML. (Security Assertion Markup Language). Let's talk about the Assertion:

  • ACS - Assertion consumer service -