An identity provider (IdP) authenticates users or services and supplies identities and authorization context to applications, catalogs, and storage systems. Centralizing authentication decouples security policy from individual applications, reducing password sprawl while enabling consistent monitoring and access enforcement. section 5.4.9 section 7.2.2
Identity providers support architecture across hybrid and multicloud environments by:
- Integrating cloud applications, third-party services, and enterprise systems through SSO, multifactor authentication, and conditional access. section 5.4.9
- Bridging LDAP directories and cloud identity systems so legacy applications and modern SaaS platforms share governed access. section 5.4.9
- Supplying identities to catalogs, which can apply RBAC, ABAC, and scoped credentials to tables and namespaces. section 7.2.2
Lakehouse access control
An enterprise can connect a catalog to OAuth, LDAP, SAML, or enterprise SSO, then restrict table access by role or attributes such as department. Storage platforms may likewise integrate with an IdP for fine-grained enforcement. section 5.5.2 section 7.2.2











