Re: tramp (2.6.0.29.1 nil/nil); Tramp crashes when trying to authenticate ssh with yubikey resident-key that requires user to enter FIDO2 PIN

[Michael Albinus]

coder.nova99@mailbox.org writes:

Hi,

> I'm using my Yubikey 5 to authenticate ssh on my server. The resident
> key I created for it requires both the FIDO2 PIN and touching the key
> to authenticate it. When I try to log into the server with Tramp, the
> program immediately crashes with `File error: [[Regexp '^^M*User
> presence confirmed [^M]*' not found in 0 secs]]`; and Emacs also
> completely locks up as a result of Tramps failing. My computer's
> running NixOS and I have Doom Emacs installed.

Tramp supports already the Yubikey presence message, but it doesn't
support the Yubikey PIN input. Must be added.

Could you, pls, run ssh in a terminal, and show all messages which
happen there (except the PIN value, of course)?

Best regards, Michael.