Phase 5: Enterprise Integration & Authentication · 45 min · Python · SAML · OIDC

Bridging Auth Protocols

The client uses SAML. Your platform uses OIDC. Bridge it.

What you will learn

Bridge SAML-to-OIDC using federation providers or custom middleware
Implement token exchange patterns: OAuth tokens for SAML assertions and vice versa
Manage sessions across heterogeneous protocols: maintaining SSO across systems
Map user identities across IdPs: correlating attributes, handling name differences
Decide when to bridge vs. when to standardize: cost of bridging vs. cost of migration

Objective

What you'll learn

This lesson takes approximately 45 min. By the end, you will be able to:

Bridge SAML-to-OIDC using federation providers or custom middleware
Implement token exchange patterns: OAuth tokens for SAML assertions and vice versa
Manage sessions across heterogeneous protocols: maintaining SSO across systems
Map user identities across IdPs: correlating attributes, handling name differences
Decide when to bridge vs. when to standardize: cost of bridging vs. cost of migration

The Problem

The client uses SAML for SSO. Your platform uses OIDC. The client's API gateway uses OAuth 2.0 with custom scopes. You need to bridge all three. Auth protocol bridging is a common FDE challenge: translating SAML assertions to OIDC tokens, mapping attributes to scopes, and maintaining session state across protocol boundaries.

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Key terms in this lesson

Token