CompTIA CASP+ Practice Test 2026 - Free CASP+ Practice Questions and Study Guide

SAML (Security Assertion Markup Language) entities operate in two primary roles: the identity provider (IdP) and the service provider (SP).

The identity provider is responsible for authenticating users and providing the necessary authentication assertions (such as SAML tokens) to other services. This means that the IdP verifies the user's identity and delivers that verification to the service provider, which relies on this information to grant access to its resources.

The service provider, on the other hand, is the entity that provides services or resources to users, relying on assertions from the identity provider to authenticate those users. The service provider trusts the identity provider to manage user identities and security, thus enabling single sign-on (SSO) capabilities across different services.

These roles are fundamental in federated identity management, where users can access multiple services without needing separate credentials for each service. This streamlines the user experience and enhances security by centralizing user authentication.

The other roles mentioned—data processor and user, database administrator, client and server—are not relevant to the specific functioning of SAML entities within the context of identity management and security protocols.