OAuth 2.0 and OpenID Connect (in plain English)

Seems there's still confusion so I'll copy/paste my old comment: OAuth 1.0/2.0 are a set of protocols and standards allowing applications to identify users and get access to their data using existing profiles. OAuth is mostly focused around authorization with claims (which are just key-value pairs) and authentication was an afterthought. OpenID is another standard designed to let people authenticate across the web, launched with a lot of hype in the early web 2.0 days but never took off. OpenID Connect (OIDC) is a new standard based on OAuth 2 + OpenID to provide both authentication and authorization in a single flow. OIDC/OAuth is all based on tokens, which are JWTs containing a bunch of claims that can be validated against the server that issued them. There are ID tokens (for the user info) and Access tokens (for accessing an API on behalf of that user), but some services like social logins don't provide any access tokens. Other providers might have rate limits, or dont have fine-grained permissions, or you maybe you have completely internal APIs that you need tokens for. Also this video is a great in-depth walkthrough: [VIDEO]

This also has a very nice and simple explanation of the whole thing: [VIDEO] It's about 1h long, but it's really worth it.

I read so many docs when I was trying to implement OAuth and got more and more confused. This video was a huge help though for explaining all of the concepts: [VIDEO]

I have not seen a course that covers all of the things you are asking for. The best courses on the oidc/oauth and saml I have seen were the paid ones here: [LINK] On linkedinlearning this one was quite ok: [LINK] Free ressources check: - [LINK] -OAuth 2.0 and OpenID Connect (in plain English): [VIDEO] [LINK] -OAuth/OpenID by Nat Sakimura(chairman openid foundation) [LINK] For the active directory topic I don't know good ressources

I found Nate Barbettini's video on OAuth and OpenID Connect incredibly insightful for understanding these topics. He explains everything so well- [VIDEO] . Additionally, I'm part of the ZITADEL team, an open-source project that's free to download or use in our cloud offering. So, you can always tinker around with it as some others have already suggested. Our blog dives into various security topics, ranging from OAuth, OpenID Connect, and Single Sign-On, Authentication, Federation to emerging issues like Passkeys. We also discuss real-world Identity Management problems and solutions seen by ZITADEL users— [LINK] . For any specific security-related queries, feel free to join the conversation on our Discord chat: [LINK] . We're always discussing and sharing insights on these topics.

at my old company we worked with auth a lot, so it was a requirement for new joiners to watch this in their first week. i still recommend it if you want to learn oauth from 0 [VIDEO]

[VIDEO] A classic explainer from almost a decade ago. This explains it from the point of view of the original problem it was designed to solve.