WebAuthn, Fido2 in ASP. Net

Question

Can anyone point me to documentation and or code examples for WebAuthn and Fido2 for Multi Factor authentication? Coding in ASP.Net C#

Thanks

Answer 1

Hi @Palmer, Neil ,
Hope the following documents can help you:
A working implementation library + demo for FIDO2 and WebAuthn using .NET
https://github.com/passwordless-lib/fido2-net-lib
ASP.NET CORE IDENTITY WITH FIDO2 WEBAUTHN MFA
https://damienbod.com/2019/08/06/asp-net-core-identity-with-fido2-webauthn-mfa/
Best regards,
Lan Huang

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Answer 2

As already answered, there are several open source and commercial libraries available.

However, depending on your use case you can craft your own solution by implementing the Web Authentication API yourself using navigator.credentials.create() and navigator.credentials.get().

Basically you use these methods to Create a public key credential and then Retrieve a public key credential.

For an example of how this is achieved, take a look at WebAuthn for nginx using auth_request. Discussions are enabled on the repo, so feel free to ask questions there.