A brief overview of the INDIGO IAM service

The INDIGO Identity and Access Management (IAM) Service provides a layer where identities, enrollment, group membership and other attributes and authorization policies on distributed resources can be managed in an homogeneous way, supporting identity federations and other authentication mechanisms (X.509 certificates and social logins).

IAM implements the Virtual Organization (VO) concept, and is the developed by the same team behind VOMS.

IAM is the AAI solution chosen to power the next generation WLCG Authentication and Authorization infrastructure.


  • Flexible authentication: The IAM supports user authentication via local username and password credentials as well as SAML Identity Federations, OpenID Connect providers and X.509.
  • Enrollment: The IAM provides VO enrollment and registration functionalities, so that users can join groups/collaborations according to well-defined flows.
  • Attribute and identity management: The IAM provides services to manage group membership, attributes assignment and account linking functionality.
  • User provisioning: the IAM provides endpoints to provision information about users identities to other services, so that consistent local account provisioning, for example, can be implemented.


The IAM service has been succesfully integrated with many off-the-shelf components like Openstack, Kubernetes, Atlassian JIRA and Confluence, Grafana and with key Grid computing middleware services (e.g., RUCIO, FTS, dCache, StoRM, XRootD, HTCondor).

Service access options

IAM as a service

INFN provides IAM as a service to partner research communities. In this scenario, a dedicated IAM instance is deployed on the INFN infrastructure and configured according to the community needs. INFN takes care of keeping the service operational and up-to-date, while administrative control on the IAM instance is granted to the community.

For more information on how to access IAM as a service, click here.

On-premise deployment

IAM is an Apache-licensed identity solution, for which we provide a Docker image on dockerhub and RPM packages.

IAM can be deployed on-premises following the advice in the Deployment guide.

Last modified September 9, 2021: Massive renaming (6830714)