References

https://spaces.at.internet2.edu/display/InCFederation/Metadata+Query+ProtocolMDQ

https://spaces.at.internet2.edu/display/perentityMDQ/MDQProduction+metadata+Client+Softwaresigning+key

Note

First choice is to use InCommon's Metadata Query (MDQ) service to load and manage SAML metadata for the UC Davis IdP. Use the procedure below only when the SAML SP software is incapable of dynamically consuming metadata from a remote source.

https://spaces.at.internet2.edu/display/InCCollaborateMDQ/MetadataConfigure+Shibboleth+Queryservice+Serverprovider

https://wikikantarainitiative.shibbolethgithub.netio/confluence/display/XSTJ2/xmlsectool+V2+Home

Caution: Attempting to download metadata from the URL below (step 3) with a browser will not provide usable results. The MDQ server (re)formats the results based on MIME type sent in the browser's request.

Procedure

...

SAMLprofiles/saml2int.html

Procedure

1. Download a copy of the InCommon MDQ signing certificate. Verify its fingerprint.

   Code Block
   curl -OLO httpshttp://dsmd.incommon.org/certs/mdqinc-betamd-cert.pem

   Verify the certificate's signing key fingerprint with information on this page
   

   https://ops.incommon.org/mdq_beta_cert.html

   Code Block
   -mdq.pem openssl x509 -sha256sha1 -noout -fingerprint -in mdqinc-betamd-cert-mdq.pem SHA1 Fingerprint=F8:4E:F8:47:EF:BB:EE:47:86:32:DB:94:17:8A:31:A6:94:73:19:36

   
   

2. Fetch the UC Davis IdP metadata (SAML entity ID urn:mace:incommon:ucdavis.edu).

   Code Block
   curl --silent --output ucdavis-metadata.xml \ http://mdq-beta.incommon.org/global/entities/urn%3Amace%3Aincommon%3Aucdavis.edu

   
   

3. Validate the XML signature. Note: several other ways to verify the digital signature on an XML document exist, as well, cf. Google search.
   
   https://wiki.shibboleth.net/confluence/display/XSTJ2/xmlsectool+V2+Home

   Code Block
   title xmlsectool
   xmlsectool --verifySignature --inFile ucdavis-metadata.xml --certificate inc-md-cert-mdq-beta-cert.pem.pem

   https://www.aleksey.com/xmlsec/

   Code Block
   title xmlsec1
   xmlsec1 --verify --id-attr:ID urn:oasis:names:tc:SAML:2.0:metadata:EntityDescriptor \ --pubkey-cert-pem inc-md-cert-mdq.pem ucdavis-metadata.xml