SSO vs FIM - MacKittipat/note-developer GitHub Wiki

SSO

• Allows a user to access multiple applications using a single set of credentials
• Enables access to applications and resources within a single domain

FIM

• Federated identity management, also known as federated SSO
• Allowing users to share identities and authenticate users across domains. When two domains are federated, a user can authenticate to one domain and then access resources in the other domain without having to perform a separate login process.
• FIM is achieved through the use of standard protocols like SAML, OAuth, OpenID Connect
• Enables single-sign on to applications across multiple domains or organizations.

References

• https://www.pingidentity.com/en/resources/blog/post/sso-vs-federated-identity-management.html
• https://www.okta.com/identity-101/federated-identity-vs-sso/
• https://blog.loginradius.com/identity/federated-identity-management-vs-sso/