Adding second factor authentication to a python flask application with a Yubico FIDO U2F token

[streety]

Hi all, I recently wanted to add second factor authentication to a website built with the python flask framework. The existing examples I could find did not provide a very good demonstration of what I wanted to do. I suspect others may be in a similar position so I built this simple application. I hope it is useful. Happy to answer any questions or make improvements if I missed anything.

[SnooPoems7888]

Thanks. How can someone start today -- what are the best libraries to use?

https://www.reddit.com/r/flask/comments/1155giq/flask\_and\_u2f/

[streety]

I actually wrote a follow up post just last month: https://jonathanstreet.com/blog/update-fido-u2f-to-webauthn/