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 :

  1. An AuthnRequest with its Signature (HTTP-Redirect binding).
  2. An AuthNRequest with the signature embedded (HTTP-POST binding).


SigAlg= , RelayState=