Connect your site to a SAML/CAS IDentity Provider (IDP) as a Service Provider (SP) or configure your Elgg installation as an IDP.

• installation of SimpleSAMLPHP
• read the INSTALL.txt

• Act as SAML Service Provider (SP)
• Act as CAS Service Provider (SP)
• Act as SAML Identity Provider (IDP)
• Use multiple external IDP's (autodetects configured IDP's)
• Login with federated accounts
• Optionally create accounts based on federated account data
• Link existing account to multiple external accounts
• Force authentication to an external IDP
  All your users will be forced to login using the configured external IDP
• Automaticly create user accounts based on the information provided by the external IDP
  This requires that the following attributes are set in the configuration of the SP
  • elgg:email => the email address of the user
  • elgg:firstname or elgg:lastname => because we need to create a displayname
  • elgg:external_id => to link the newly created account to the external account
• Automaticly link existing users based on their profile information and information from the IDP
  This requires that the following attributes are set in the configuration of the SP
  • elgg:external_id => the unique ID of the user on the IDP side
  • elgg:auto_link => the value that the configured profile field must have to automaticly link the user
• Remember login
  Set the remember me cookie so the user doesn't have to authenticate every browser session