SAML

SAML (Security Assertion Markup Language) is an XML-based open standard that enables Single Sign-On (SSO) by securely exchanging user identity and authorization data between an Identity Provider (IdP) and a Service Provider (SP).

Principal                      SP                          IdP
 (User)                     (ChatGPT)                    (Google)

        ---access_request--->
                                     ----redirect_user--->                                       
        --------------------------------authentication--->
                                     <---SAML_assertion---
        <---access_grant-----