Identity Federation SAML OAuth OIDC Architecture

Establish a trusted identity layer for workforce, partner, and machine access across enterprise platforms and APIs.

Federation architecture scope

Identity federation architecture unifies authentication and authorization standards across enterprise applications, APIs, and cloud services. SAML commonly supports workforce SSO for legacy and SaaS applications, while OAuth and OIDC provide delegated and token-based access models for modern applications and APIs.

Protocol design and trust boundaries

Durable federation design defines issuer trust, token lifetimes, claim mapping, key rotation, and session governance across identity providers and relying systems. Teams should model trust boundaries explicitly for human, service, and third-party access to reduce lateral movement risk and policy drift.

Related pathways: identity and control layer architecture, Cybersecurity Hub, Data Integration Hub.

Zero trust and operational governance

Federation platforms should align with zero-trust access policies, conditional controls, MFA standards, and centralized audit visibility. Operating models need clear ownership for identity lifecycle, entitlement review, and incident response coordination so identity control remains effective as the application estate evolves.

Cross-system trust alignment: Integration and API Hub and Enterprise Technology Services.

Hub pathways

Return to Cybersecurity strategy, continue to Data Integration taxonomy, or review Cloud Infrastructure pathways.