Digby will authenticate with CAS, OCLC Identity Management Infrastructure (IDM), LDAP third-party authentication, and Shibboleth. With Digby version 1.0.8, we've improved support for libraries that use CAS, Shibboleth and an LDAP third-party authentication form. If your library uses CAS or Shibboleth and your login experience is less than satisfactory, please see the Digby FAQ.