Yubico brings the YubiKey to the .NET ecosystem with its new desktop SDK

In continuation with our mission to bring strong authentication to the world, Yubico is excited to announce that integrating the YubiKey into your .NET application or workflow will now be easier than ever before. This is enabled with the introduction of the new YubiKey SDK for Desktop. With this Desktop SDK, you can now add support for the multi-protocol YubiKey directly into your application, supporting scenarios over both USB and near-field communication (NFC).

The first beta, released on Friday, supports the Initiative for Open Authentication (OATH), and Personal Identification and Verification (PIV) applications. A beta refresh will be made in July that will add support for the Yubico OTP application.

For organizations using the YubiKey as a PIV smart card, the Desktop SDK automates many tasks such as generating keypairs, loading certificates and more. Coupled with comprehensive documentation and sample code, we demonstrate how to use the SDK for end to end smart card management and provisioning.

No matter how your user interacts with the YubiKey, the developer experience is the same. With native NFC support, building tap and go scenarios for your one-time password based workflows becomes as easy as if it were USB.

Key features of the Desktop SDK

  • Support for macOS and Windows operating systems
  • NFC as a first-class citizen
  • Targets .NET Standard 2.0
  • Layered API: Use the application session APIs for quick application development, or instead use the low level commands for total control.

Later this summer, Yubico will release the Desktop SDK as an open source project on GitHub.

How to get started

As part of the YubiKey SDK for Desktop effort, Yubico is building its most comprehensive set of documentation yet. The documentation is also in Beta and will continue to be expanded and improved throughout the SDK’s release cycle. You can begin reading the documentation here.

The Desktop SDK is available today on NuGet.org under the Yubico organization. The package to reference is Yubico.YubiKey.

How to participate in the public beta and give feedback

We invite all existing Yubico Mobile SDK users and those curious to integrate hardware security into their desktop offerings to join our upcoming webinar on June 30th to learn how to integrate your desktop apps with Yubikeys. You can give us feedback at desktopsdkbeta@yubico.com.

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