What is Single Sign On SSO and how it helps.

So, what is SSO? At its core, it’s an authentication scheme that lets you log in with just one set of credentials—one username and one password—and gain access to multiple related but independent systems or applications. It's like having a master key for all the doors you need to open, rather than a huge keychain.

Here’s how it works: Think of SSO as a trust relationship between an application, which we’ll call the service provider, and an identity provider, which is basically the gatekeeper of your credentials. When you try to access an application, it redirects you to the identity provider to authenticate. Once you’ve successfully logged in, the identity provider sends a token—a sort of digital proof of your identity—back to the application. This token tells the application, ‘Hey, this user is legit,’ and grants you access without making you log in again.