SAML2 SAML2 Local SWITCHaai Metadata Signer 2.16.756.1.2.6.7 md:IDPSSODescriptor md:AttributeAuthorityDescriptor SWITCHaai Interfederation Metadata Signer 2.16.756.1.2.6.8 md:IDPSSODescriptor md:AttributeAuthorityDescriptor