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- SAMLv2: https://docs.oasis-open.org/security/saml/v2.0/saml-metadata-2.0-os.pdf https://docs.oasis-open.org/security/saml/v2.0/saml-metadata-2.0-os.pdf
- SAMLv2rpi https://docs.oasis-open.org/security/saml/Post2.0/saml-metadata-rpi/v1.0/cs01/saml-metadata-rpi-v1.0-cs01.pdf
- eduGAIN Policy: http://services.geant.net/edugain/Resources/Documents/eduGAIN_metadata_profile.pdf (page not found)
- CoCo: https://wiki.refeds.org/download/attachments/1606124/GEANT_DP_CoCo_Entity_Category_ver1.2.pdf
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