---
title: "Introduction"
manual: "Netresearch SAML Auth"
version: "main"
source: "Introduction/Index.rst"
rendered: "2026-10-01T05:49:07+00:00"
---

# Introduction {#introduction}

## What is SAML SSO? {#what-is-saml-sso}

SAML (Security Assertion Markup Language) is an open standard for exchanging
authentication and authorization data between parties, specifically between an
Identity Provider (IdP) and a Service Provider (SP).

Single Sign-On (SSO) allows users to authenticate once with an Identity Provider
and then access multiple applications without re-entering credentials.

## Extension Features {#extension-features}

The Netresearch SAML Auth extension provides:

-   **Frontend Authentication**: SAML-based login for frontend users
-   **Backend Authentication**: SAML-based login for backend users
-   **Auto-Discovery**: Automatic SAML configuration detection based on domain
-   **User Provisioning**: Automatic creation of TYPO3 users from SAML attributes
-   **Deep Link Support**: Redirect users to their original destination after login
-   **PSR-14 Events**: Modern event system for customization

## Requirements {#requirements}

**Version 13.x**

-   TYPO3 12.4 LTS or 13.4 LTS
-   PHP 8.1 - 8.5
-   onelogin/php-saml 4.0+

**Version 10.x**

-   TYPO3 10.4 LTS or 11.5 LTS
-   PHP 7.4 - 8.1
-   onelogin/php-saml 3.x

## Support {#support}

For issues and feature requests, please use the
[GitHub issue tracker](https://github.com/netresearch/t3x-nr-saml-auth/issues).