Flow diagram

This page provides detailed visual diagrams of the SSO authentication flow, helping you understand exactly what happens during the login process.

Understanding the diagrams

These diagrams show:

• The complete OAuth 2.0 authorization code flow

• Interactions between user, application, and Oten IDP

• Different scenarios and error handling

• Security mechanisms in action

Complete OAuth 2.0 flow

Main authentication flow

Main Authentication Flow

Security mechanisms

PKCE flow (for public Clients)

PKCE Flow

📖 Comprehensive PKCE guide: For detailed implementation examples for SPAs and native apps, see the PKCE implementation guide.

Next: Learn about the Step-by-step process for detailed explanations of each step