http://log-in.test.miljoeportal.dk/runtime/services/trust/14/username
https://log-in.test.miljoeportal.dk/runtime/services/trust/mex
256
http://docs.oasis-open.org/ws-sx/ws-trust/200512/SymmetricKey
http://docs.oasis-open.org/wss/oasis-wss-saml-token-profile-1.1#SAMLV1.1