[Bug 3188] Problems creating a second ecdsa-sk key for a second Yubikey

bugzilla-daemon at mindrot.org bugzilla-daemon at mindrot.org
Tue Jun 30 03:07:43 AEST 2020


https://bugzilla.mindrot.org/show_bug.cgi?id=3188

--- Comment #4 from David Walker <David at WalkerStreet.info> ---
(In reply to Damien Miller from comment #1)
> Please attach debug logs for a successful case and a failed case -
> use "ssh-keygen -vvv ..." to increase the verbosity.

I've attached two logs; here's how I created them:

1. Using my "first" Yubikey (the 5c Nano), I generated a test key with
"ssh-keygen -vvv -t ecdsa-sk". The log is in the "ssh-keygen log with
Yubikey 5c Nano" attachment.

2. I removed the "first" key and inserted the "second" key (the 5 NFC).

3. I tried to generate a test key with "ssh-keygen -vvv -t ecdsa-sk";
the log is in the "ssh-keygen log with Yubikey 5 NFC" attachment. The
light on the 5 NFC never started flashing, and when I pressed its
button anyway, it appears to have sent an HOTP string.

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