OpenSK is an open-source implementation for security keys
WebSocket & WAMP in Java for Android and Java 8
Tomcat SPNEGO/Kerberos Authenticator and Active Directory Realm
Open source fork of the Google Authenticator Android app
Software U2F authenticator for macOS
Wireless hotspot with OTP captive portal
Open source version of Google Authenticator (except the Android app)
Two-factor authentication for Node.js
IEEE 802.11 AP, IEEE 802.1X/WPA/WPA2/EAP/RADIUS Authenticator
two factor authentication management system
TOTP authenticator for Java ME
phpbb Multiple domain Single Sign on with wordpress plugin
Indoor short‑range radar system with PKI.
Two-Factor Authenticator for Windows.
Two-Factor Authenticator for Linux.