OAuth 2.0 is an industry standard for delegated authorization, which allows applications or clients to access data or features offered by another app or service. OpenID Connect (OIDC) adds a standards-based authentication layer on top of OAuth 2.0, providing a way for applications to verify the identity of users through a standardized process. The OIDC flow involves an application requesting authentication from an authorization server, which prompts the user to log in and authorize access to specific resources. Once authorized, the authorization server redirects the user back to the application with an identity token, which can be used to authenticate subsequent requests. Two common OIDC flows are the Implicit Flow and the Authorization Code Flow, both of which require the application to be registered with the authorization server and to provide a client ID and client secret for authentication. The Identity Token is a JSON Web Token (JWT) that encodes the user's authentication claims, digitally signed by the issuer. Understanding OIDC and OAuth 2.0 flows is crucial for implementing secure authentication and authorization in modern applications.