Authentication refers to the process of confirming identity. While often used interchangeably with authorization, authentication represents a fundamentally different function.

In authentication, a user or application proves they are who they say they are by providing valid credentials for verification. Authentication is often proved through a username and password.

Application Authentication Flows

OpenID Connect and OAuth 2.0 is used to authenticate users and verify their identity.

Application authentication must follow one of these supported flows:

Authorization Code Flow

See also: Authorization Code Grant

Resource Owner Flow

See also: Resource Owner Password Credentials Exchange

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