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Visual explanation of SAML authentication (2020)
High level explanation of the SAML authentication protocol for beginners
SAML (Security Assertion Markup Language) is the most commonly used authentication protocol and SSO solution in enterprises. If an active session exists, the user can enter the website otherwise a “Login with SSO” button is shown. When the user clicks on the “Login with SSO” button, the SP generates a XML message called “AuthnRequest” with details about who’s sending the request (Issuer), where to redirect to after the user is authenticated (Assertion Consumer Service url) and security measures (ID, IssueInstant).
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