OpenID login system is a widely-used authentication protocol that allows users to securely log in to multiple websites and services using a single set of credentials.
- A typical OpenID login system consists of the following components:
- - OpenID provider: A trusted third-party organization responsible for authenticating users against external identity providers like Facebook, Google, or Amazon.
- - User agent: The browser or client software that initiates the authentication process on behalf of the user.
- - Redirect URI (RUR): A URL specified by the OpenID provider to redirect the user back to the requesting application after a successful login.