Authentication Center

IT Xianyu

Nov 25, 2020 · Backend Development

Implementing Single Sign-On (SSO) in B/S Systems: Cookie, Authentication Center, and LocalStorage Approaches

This article explains three practical SSO implementation methods—using a parent‑domain cookie, deploying an authentication center, and leveraging LocalStorage with iframe/postMessage—to share session IDs or tokens across multiple web applications, discussing their advantages, limitations, and code examples.