SAML AuthNRequest (SP -> IdP)
What is an AuthNRequest?
An AuthnRequest is something like a command, usually sent to order an Authentication in this progress.
Where does it come from?
The Service Provider may send it in the SP-SSO initiated flow.
And here are two examples of SAML Logout Request :
- An AuthnRequest with its Signature (HTTP-Redirect binding).
- An AuthNRequest with the signature embedded (HTTP-POST binding).