Saml 2.0: Why is NotBefore in the schema for SubjectConfirmationData if it is not allowed? -
we have several service providers using saml 2.0 single sign-on , working fine. our recent addition balking because send notbefore attribute on subjectconfirmationdata element. far can tell, part of xsd schema saml 2.0 (https://docs.oasis-open.org/security/saml/v2.0/saml-schema-assertion-2.0.xsd) marked must not in profiles pdf (https://docs.oasis-open.org/security/saml/v2.0/saml-profiles-2.0-os.pdf).
what missing?
as figured out, web browser sso profile - 1 using provide single sign on users identity provider - dictates should not set notbefore. profile sets further limitations schema defined assertion used generically, totally fine.
the service provider @ hand strictly checks compliance , rejects assertion. fact has been working far means other service provider implementations more lenient.
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