Identity Provider Filtering in SeamlessAccess Thoughts on architecture By Leif Johansson, Head of Infrastructure Services for SUNET and architect for SeamlessAccess Today SeamlessAccess presents a single view of all the identity providers it knows about - a single set of IdPs is available for searches to whatever SP is calling the discovery service. This presents a problem because of the reciprocity problem inherent in how identity federations based on SAML federations work.