YubiX: Reference Auth Software

Yubico is happy to introduce a project that combines several of our server-side software packages: YubiX. YubiX is intended as a reference architecture software stack to demonstrate how to build robust and secure authentication systems that utilizes the YubiKey and YubiHSM hardware. While YubiX may be run directly as-is, it is not intended as a “product”; rather it is intended as inspiration for customers and partners to adapt and build their own solution from. We encourage people to take parts of YubiX and put them into products or their own system designs. All the software in YubiX is free and open source software.

The current functionality includes a web service interface and a RADIUS interface for validating username, password and Yubico OTPs, together with related administrative interfaces. However the YubiX project goal is to generally showcase different technology options that can use Yubico OTPs; so expect it to go in any direction that new technology takes it. Yubico is committed to support our own components that make up YubiX and will engage with the community through GitHub using a issue tracker and source code development tools. However Yubico does not provide system-level support on external parts, such as the core Debian/Ubuntu operating system or components like FreeRADIUS: those are already well service by their own communities.

To focus our resources on YubiX, we are now retiring our old product YubiRADIUS including its components such as YubiApp. Yubico is not recommending any single migration strategy for YubiRADIUS, instead we encourage all existing YubiRADIUS users to evaluate different options. If you have technical know-how we believe the components that makes up YubiX will allow you to build something better and more robust going forward. If you prefer to take an off-the-shelf product, there are options like DuoSecurityLinOTP, OpenOTP, AuthAnvil and others. By partnering up with someone external, you can also create a custom solution for you based on YubiX components and components built by a partner. Of course, finally, if you are happy with YubiRADIUS, there is no reason to stop using it except that it will not be maintained or supported by Yubico going forward.

Talk to our teamTalk to our team

Share this article:


  • CEO Corner: Entering the second half of 2025 with momentumAs we continue to move further into the second half of 2025, I want to share a look back at our journey so far this year and as well as lay out Yubico’s strategic path ahead.  Resurgence in order growth and key segment wins While net sales declined for Q2, the end of the quarter […]Read moreCEOCEO CornerEarningsMattias Danielsson
  • Survey says: Your dog’s name isn’t a passwordWe all know we should be protecting our digital lives, but what are Americans actually doing? Yubico recently commissioned a survey, conducted by Talker Research, which asked 5,000 Americans in 10 major metro cities across the U.S. about their online security habits. Here’s a closer look at what they found (hint: they’re not as secure as they […]Read moreCompany Newssurvey
  • Passkeys are winning, but security leaders must raise the barPasswords are on their way out. In their place is a new form of login called passkeys that promises stronger security and less frustration. All passkeys offer the rare combination of improved usability and stronger security, especially when compared to passwords alone. But unless we act now, millions could be left more vulnerable than ever. […]Read moreDevice-bound passkeysHardware passkeypasskeyssynced passkeys
  • Your top YubiKey questions, answeredOver the 10+ years I’ve been at Yubico, I’ve had the pleasure of meeting customers, partners and many others talking about digital security. While every conversation is different, I am often asked many of the same questions about YubiKeys. One thing remains consistent: many people know they need better security, but they’re not sure what […]Read moreFAQYubiKey