OpenAM - Authentication, Authorization and SSO

•    Java

OpenAM provides open source Authentication, Authorization, Entitlement and Federation software. OpenAM provides core identity services to simplify the implementation of transparent single sign-on (SSO) as a security component in a network infrastructure. OpenAM provides the foundation for integrating diverse web applications that might typically operate against a disparate set of identity repositories and are hosted on a variety of platforms such as web and application servers.

Apereo CAS - Enterprise Single Sign On for all earthlings and beyond

•    Java

Welcome to the home of the Central Authentication Service project, more commonly referred to as CAS. CAS is an enterprise multilingual single sign-on solution for the web and attempts to be a comprehensive platform for your authentication and authorization needs. CAS is an open and well-documented authentication protocol. The primary implementation of the protocol is an open-source Java server component by the same name hosted here, with support for a plethora of additional authentication protocols and features.

ORY Hydra - OpenID Connect and OAuth Provider written in Go

•    Go

ORY Hydra is a hardened, OpenID Certified OAuth 2.0 Server and OpenID Connect Provider optimized for low-latency, high throughput, and low resource consumption. ORY Hydra is not an identity provider (user sign up, user login, password reset flow), but connects to your existing identity provider through a login and consent app. Implementing the login and consent app in a different language is easy, and exemplary consent apps (Go, Node) and SDKs are provided.

Authelia - The Single Sign-On Multi-Factor Authentication Server

•    Go

Authelia is an open-source authentication and authorization server providing two-factor authentication and single sign-on (SSO) for your applications via a web portal. It acts as a companion for reverse proxies like nginx, Traefik or HAProxy to let them know whether requests should either be allowed or redirected to Authelia's portal for authentication. Authelia works in combination with nginx, Traefik or HAProxy. It can be deployed on bare metal with Docker or on top of Kubernetes.

Oauth2 Proxy - A reverse proxy that provides authentication with Google, Azure, OpenID Connect and many more identity providers

•    Go

A reverse proxy and static file server that provides authentication using Providers (Google, GitHub, and others) to validate accounts by email, domain or group.

JOSSO - Java Open Single Sign-On

•    Java

JOSSO is an Open Source Internet SSO solution for rapid and standards-based (SAML) Internet-scale Single Sign-On implementations, allowing secure Internet access to the Web-based applications or services of customers, suppliers, and business partners. It supports Windows authentication, LDAP support.

java-cas-client - Apereo Java CAS Client

•    Java

Jasig CAS Client for Java is the integration point for applications that want to speak with a CAS server, either via the CAS 1.0 or CAS 2.0 protocol.

SimpleLogin - Protect your privacy with email aliases

•    Python

Your email address is your online identity. When you use the same email address everywhere, you can be easily tracked.With email aliases , you can finally create a different identity for each website. Defend against spams, phishing and data breach. Emails sent to an alias are forwarded to your mailbox without the sender knowing anything. You can also send emails or reply anonymously from your alias.

ZITADEL - Cloud Native Identity and Access Management

•    Go

ZITADEL provides you with all the features necessary to build great solutions, without the need of building the login and access management yourself.

passport-saml - SAML 2.0 authentication with Passport

•    Javascript

This is a SAML 2.0 authentication provider for Passport, the Node.js authentication library.The code was originally based on Michael Bosworth's express-saml library.

xxl-sso - A distributed single-sign-on framework.（分布式单点登录框架XXL-SSO）

•    Java

a distributed single-sign-on framework.

SSO - Simple Single Sign-On for PHP

•    PHP

Jasny SSO is a relatively simply and straightforward solution for single sign on (SSO). With SSO, logging into a single website will authenticate you for all affiliate sites. The sites don't need to share a toplevel domain.

casdoor - A UI-first centralized authentication / Single-Sign-On (SSO) platform based on OAuth 2

•    Javascript

We provide two start up methods for all kinds of users. Casdoor provides two run modes, the difference is binary size and user prompt.

LemonLDAP::NG - Web Single Sign On and Access Management Free Software

•    Perl

LemonLDAP::NG is a complete and modular Web-SSO system that can run with reverse-proxies or directly on application webservers. It can be used in conjunction with OpenID-Connect, CAS and SAML systems as identity or service provider. It can also be used as proxy between those federation systems.

Sign In As A Different User

Running your browser (IE) in a corporate environment will give you single sign on to web applications running in your intranet. But in some cases you need to access an URL with different credentials (admin purpose, etc.). Applications like SharePoint will provide you a solutio...

Single Sign On - Light Weight

Single Sign On (SSO) solution for cross domain sites which do not share cookies, session ids etc. Built using WCF Service. A Silverlight based site is also added to see the Online Users and their requested Tokens (for testing purpose).

Jasig CAS single sign-on server emulation with ASP.NET

This project contains code that can extent an existing ASP.NET web application to emulate the single sign-on functionality of a Jasig Central Authentication Service (CAS).

SAML SSO for ASP.NET

The ComponentSpace SAML components provide easy SAML enablement of ASP.NET applications. More details may be found at <a href="http://www.componentspace.com/saml">http://www.componentspace.com/saml</a>.

Security Foundation -- WCF based SSO

This project was started as a WCF based SSO solution that serves ASP.NET websites (through membership providers ) and other winform / web services. Then we realized that we need to bring in claim-based funcitionalities and make it work as our own identity foundation.

Windows Live@EDU Single Sign On

The Windows Live@EDU Single Sign On project provides a middle tier WCF service, as well as SharePoint web parts and direct connectors for providing Single Sign On from your student portal into the Windows Live@EDU environment.