webauthn-json | small WebAuthn API wrapper that translates to/from pure | Binary Executable Format library
kandi X-RAY | webauthn-json Summary
kandi X-RAY | webauthn-json Summary
@github/webauthn-json is a client-side Javascript library that serves as convenience wrapper for the the WebAuthn API by encoding binary data using base64url (also known as "websafe" or "urlsafe" base64). The WebAuthn API itself takes input and output values that look almost like JSON, except that binary data is represented as ArrayBuffers. Using webauthn-json allows the data to be sent from/to the server as normal JSON without any custom client-side processing. Hopefully this will be possible directly in the browser some day, but we're here for you until then.
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QUESTION
I am trying to implement webauthn in a rails application, I'm trying to follow along with this github repo:
https://github.com/cedarcode/webauthn-ruby
I have the server challenge working great, it gets sent to the browser:
...ANSWER
Answered 2020-May-11 at 08:12Managing the transition between server and client and ensuring everything is the correct type is a little bit of a pain but the below example works for me. I used the sample provided by https://github.com/abergs/fido2-net-lib and found it very useful.
Below is an example JSON data structure (with base64url encoded values for the properties that WebAuthn specifies as ArrayBuffers, I've also shortened the pubKeyCredParams array) returned by my second factor credential create options server endpoint:
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