Single Sign-On - authentication system that allows users to log in once and access multiple applications. Like having a master key for all doors in a building.
Google SSO lets you access Gmail, Drive, and YouTube with one login instead of separate passwords for each.
All four providers support single sign-on for cloud consoles and connected applications. AWS IAM Identity Center provides workforce SSO to AWS accounts and many SaaS apps. Microsoft Entra ID is a widely used enterprise identity platform with strong SSO support for Microsoft 365 and third-party apps. Google Cloud Identity provides SSO and identity management for Google Workspace, Google Cloud, and external apps. OCI Identity and Access Management supports federation and SSO for Oracle Cloud services and integrated applications.
Explore real-world architectures from our community that use SSO: