IdP filtering

The process of limiting the list of identity providers (IdPs) that are presented to a user during the authentication process based on specific criteria or attributes.

In the context of Authentication and Authorization Infrastructure (AAI), the discovery service may present the user with a list of IdPs that are authorized to authenticate the user for a particular resource or service. However, not all IdPs may be suitable for all users or services. For example, some IdPs may only support certain authentication protocols, or they may only be available to users from specific organizations or geographical locations.

IdP filtering allows service providers to control the list of IdPs that are presented to users, based on specific criteria or attributes, such as the user's organization, geographical location, or the authentication protocol supported by the IdP. This ensures that users are presented with a manageable list of suitable IdPs that meet the requirements of the service, and it helps to simplify the authentication process for users by presenting them with a list of IdPs that are relevant to them.

It can be implemented in various ways, such as through configuration files, access control rules, or metadata files that describe the attributes of each IdP. It is an important aspect of AAI, as it helps to ensure that users are presented with a streamlined and personalized authentication experience that meets the requirements of the service.