Open source auth infrastructure for B2B SaaS
CloudFoundry User Account and Authentication (UAA) Server
A private certificate authority (X.509 & SSH) & ACME server
Elixir Authentication
Kanidm: A simple, secure, and fast identity management platform
MaxKey SSO ,Leading-Edge IAM-IDaas(Identity and Access Management)
FIDO® Certified StrongKey FIDO Server (SKFS)
Two-factor authentication for Node.js
Two-factor authentication system
SSH Key Management solution
Ski is an S/Key (One-Time Pad or Password) tool for Mac OS X