Single Sign-On for Your Self-Hosted Universe
Password hashing specification for the Elixir programming language
FIDO® Certified StrongKey FIDO Server (SKFS)
SikkerBox is a secure two-factor authentication (2FA) application, etc
OAuth 2.0 authorization server toolkit for Node.js
Coherence is a full featured, configurable authentication system
Domains Reseller module for Blesta to integrate API functionality
Token based authentication module for angular.js
PHP User Login and Management System based on Codeigniter