SAML Service Provider
This module enables Drupal to act as a Service Provider, allowing users to log in using a pre-registered SAML Identity Provider. This facilitates single sign-on by offloading authentication to another service.
The SAML SP module allows Drupal to function as a Service Provider. This means that users can authenticate to a Drupal site via a SAML Identity Provider (“IdP”) that has been pre-registered with the site.
For more information about SAML, see the SAML Authentication page put together by our friends the SAML Auth module maintainers.
Configuration
You will need to work with the administrator of your organization’s SAML Identity Provider — coordinated settings and the trusted relationship between the servers are central to the SAML authentication process.
For more details, see the README.
Alternative modules
A list of modules with a similar function is in the Contributed module documentation section of drupal.org.