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As an application developer, you want to give your users the ability to sign in directly to your application through your Okta integration. Your application needs to support federated Single Sign-On (SSO). In this scenario, your application relies on Okta to serve as an external Identity Provider.
Okta supports two protocols for handling federated SSO:
Your choice of protocol depends mainly on your use case, but OIDC is generally recommended for new integrations.
- An identity layer on top of the OAuth 2.0 protocol.
- Verifies end-user identity and obtains profile information.
- Lightweight and REST-based.
- Ideal for mobile and cloud applications.
- Newer protocol with widespread usage. Some newer applications only support OIDC.
- Using the underlying OAuth 2.0 protocol, OIDC can:
- Adapt to specific automated use cases like machine-to-machine or device authentication.
- Request user consent to share profile details, satisfying privacy regulations like GDPR.
- Widely used federation protocol for SSO in Web applications.
- Many SaaS providers support SAML integration to grant SSO access to end users.
- Specification doesn’t have user consent, although it can be built into the flow.
- Larger in size because XML messages are transmitted back and forth.