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OpenID Connect

Application Layer — Authentication

Protocol Overview

Full Name OpenID Connect
Abbreviation OIDC
OSI Layer Application Layer
Category Authentication
Default Port 443

About OIDC

Identity layer on top of OAuth 2.0 that adds user authentication with ID tokens (JWTs). Standard for consumer SSO, enabling 'Login with Google/Apple/Microsoft' flows.

Application Layer Authentication Port 443

Related Protocols — Application Layer