AWS LPU SSO - Identity Platform

AWS LPU SSO is a centralized identity platform designed to provide a single authentication system across applications in the AWS LPU ecosystem. Instead of requiring users to create and manage separate accounts for every application, AWS LPU SSO provides one identity that can be used across connected services. The platform acts as an identity provider and implements OAuth 2.0 and OpenID Connect authentication flows. Applications can redirect users to AWS LPU SSO for authentication and receive authorization codes and identity information without directly handling user passwords. The system also provides account management, user profiles, role management, application authorization, and developer documentation for integrating new applications with the platform.

As the AWS LPU ecosystem grows, different applications require authentication and user identity management. Without a centralized identity system, every application would need to independently implement authentication, maintain user accounts, manage passwords, and handle user profiles. This creates several problems: • Users need separate accounts and passwords for different applications. • Each application becomes responsible for securely handling authentication. • User identity and profile information becomes fragmented across services. • Applications cannot easily share authentication state. • Developers need to repeatedly build authentication systems for new projects. • Managing access and user roles becomes increasingly difficult as more applications are added. A centralized identity platform was needed to provide a secure and reusable authentication system for the entire ecosystem.

I built AWS LPU SSO as a centralized identity provider that applications can integrate with using standard OAuth 2.0 and OpenID Connect protocols. Users authenticate directly with AWS LPU SSO instead of individual applications. Connected applications redirect users to the authorization endpoint and receive authorization codes after successful authentication. Applications can then exchange authorization codes for tokens and retrieve user identity information using protected endpoints. The platform supports the Authorization Code Flow with PKCE, state validation, and nonce handling to provide a more secure authentication flow. Users also have access to a centralized dashboard where they can manage their profile information, while administrators can access additional management capabilities based on their assigned role.