Single Logout

OpenID Connect logout is a critical component of any identity and access management (IAM) system that supports single sign-on (SSO). It ensures that when a user logs out of one application, they are also logged out of all other applications that share the same SSO session. This prevents unauthorized access and enhances overall security. What is OpenID Connect logout? OpenID Connect logout is a protocol extension that allows a user to log out of all applications and services that are part of a single sign-on session. It involves the use of the end_session_endpoint provided by the OpenID Connect provider (OP) to terminate the user’s session across all connected clients. ...

Visual Overview: sequenceDiagram participant User participant SP as Service Provider participant IdP as Identity Provider User->>SP: 1. Access Protected Resource SP->>User: 2. Redirect to IdP (SAML Request) User->>IdP: 3. SAML AuthnRequest IdP->>User: 4. Login Page User->>IdP: 5. Authenticate IdP->>User: 6. SAML Response (Assertion) User->>SP: 7. POST SAML Response SP->>SP: 8. Validate Assertion SP->>User: 9. Grant Access SAML (Security Assertion Markup Language) is a widely adopted standard for Single Sign-On (SSO) in enterprise identity federation. Just as SAML SSO simplifies user authentication across multiple systems, SAML Single Logout (SLO) provides a standardized way to terminate sessions across those same systems. Let’s explore how it works and the critical differences between redirect vs POST bindings, SP-initiated vs IdP-initiated logout, and the essential role of the Session Index. ...