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Single Sign-On (SSO) is a user authentication service that allows a user to use a single set of login credentials (e.g., username and password) to access multiple applications. The service authenticates the user for all the applications they have been given rights to and eliminates further prompts when they switch applications during the same session.
SAML, or Security Assertion Markup Language, is an open standard that allows identity providers to pass authorization credentials to service providers. SAML SSO refers to a SAML-based single sign-on, a process that enables users to authenticate through one application and thereby gain access to others without needing to log in again.
NGINX SAML SSO is designed to enable NGINX Plus to act as a SAML Service Provider (SP). In a SAML federation, an SP is a system entity that receives and accepts SAML assertions from Identity Providers (IdPs) and uses them to enable user authentication and authorization. With SAML SSO for NGINX, you can integrate NGINX Plus into a SAML SSO federation to add web SSO capability to your web applications and APIs.
NGINX SAML SSO addresses the challenge of managing multiple authentication systems by allowing users to authenticate once, using a single set of credentials, and gain access to multiple applications. This improves security by reducing the number of places where user credentials are stored and input, and also improves user experience by reducing the number of times users have to input their credentials.
Moreover, it makes NGINX Plus an active participant in an SSO system, allowing it to interact with a SAML Identity Provider (IdP). This way, NGINX Plus can handle SAML assertions and act as a gatekeeper, enabling secure access to your applications.
By providing a ready-made solution to integrate SAML SSO in the NGINX Plus environment, this implementation also solves the problem of having to manually implement SAML authentication from scratch. It saves time, reduces the risk of security mistakes, and enables you to leverage the benefits of SAML SSO more quickly and easily.