An illustrated crash course for OAuth and OIDC by Deepu K Sasidharan

In this talk, we will embark on an illustrated journey to demystify OAuth 2.1 and OpenID Connect (OIDC). We will start by exploring the fundamental concepts of these two protocols, their roles in modern authentication and authorization, and the problems they solve in the realm of identity and access management. We will then delve into the flow of OAuth and OIDC, using easy-to-understand animations and examples. This will include a detailed walkthrough of the various OAuth flows, grant types, tokens, and how they interact in different scenarios. The talk aims to provide a clear understanding of OAuth 2.1 and OIDC, enabling developers to confidently implement secure authentication and authorization in their applications. Whether you're a beginner or experienced developer, this talk will provide valuable insights into the world of OAuth and OIDC. Deepu K Sasidharan Okta Recorded at Jfokus 2025 in Stockholm 5th of february http://www.jfokus.se