I am new to the concept of Single Sign On(SSO). I came to know that SAML request and response is the best way to achieve SSO process. I then started reading about SAML2.0. I came around a term NameIdPolicy in saml2.0 which was not there in saml1.0.

Definitions say that It is the format of the NameID we request from the IdP.I want to know what is that format is? I mean what data from IDP should come in the format NameIDPolicy specify? Can anyone brief me on this NameIdPolicy concept?

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