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Questions tagged [yubikey]

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0 votes
0 answers
30 views

Login to Windows using the Yubico Security Key C NFC [closed]

Is there a way to use the Security Key C NFC (not to confuse with other yubico keys) to login on windows? Yubico states that it is not possible. My many onlineservices are compatible with my key and ...
Cowboy_Patrick's user avatar
0 votes
0 answers
45 views

Windows YubiKey GPG works with putty but not terminal

I created three gpg subkeys stored on my YubiKey as described here. I added enable-ssh-support and enable-putty-support to my gpg-agent.conf file. Everything works when accessing a server with the ssh-...
user avatar
0 votes
0 answers
36 views

Cannot setup pam_oath with Yubikey: OTP not authorized to login as user

So, what I want is to login to system with Yubikey as a second factor or the only factor. I use Linux Mint 21.3, my Yubikey is 5C NFC. My /etc/pam.d/common-auth: auth [success=1 default=ignore] ...
MPEI_stud's user avatar
2 votes
1 answer
65 views

Windows 11 2FA prompt opens a console instead of a GUI window

Some time ago, I started using FIDO2 keys (Yubikey 5 NFC, to be precise) as a form of second-factor authentication on a few sites that support it. However, after some change in my system, most likely ...
Paweł Bulwan's user avatar
1 vote
1 answer
59 views

store onion address inside yubikey

I would like to be able to save an onion (v3) address, without the final string .onion inside a yubikey safely. I want the yubikey that provide this address in plain text at the touch event. I have ...
st3b1t's user avatar
  • 11
1 vote
0 answers
67 views

YubiKey Authenticator App doesn't recognize YubiKey after unlocking the card via PinEntry

I've got a pretty basic password/OTP set up on macOS: my YubiKey has the sig/aut/enc subkeys to encrypt/decrypt my passwords in the password store my OTPs are solely on my YubiKey - I use the Yubikey ...
tpschmidt's user avatar
  • 111
17 votes
3 answers
3k views

Set Default Security Key Settings (Windows 11)

As of the latest Windows Insider Build (Dev Channel), 23541.1000 ni_prerelease, the following appears when Windows is prompted for security key input: Whereas before this update, it was only Security ...
David's user avatar
  • 415
0 votes
0 answers
91 views

No passkey icon option on Windows 10

I am trying to enable passkey login on Windows 10 devices. I have enabled UseSecurityKeyForSignin and EnableFIDODeviceLogon as well as enabled WHfB in gpedit.msc According to RSOP, passkey login is ...
Mike's user avatar
  • 1
3 votes
2 answers
3k views

Yubikey ssh authentication fails with "signing failed for ECDSA-SK"

I have a Yubikey (Security Key NFC by Yubico) that I'm trying to set up on a Linux machine for SSH authentication in Discoverable keys mode. I've followed this tutorial and created the keys with ssh-...
user134167's user avatar
1 vote
1 answer
721 views

How does the Key generation for Yubikeys/FIDO2 keys work if you can generate an infinitive amount

I'm asking myself how they have done it, or if anyone could explain it to me. I have found this source where it is described, but I don't quiet get it. For my understanding, it is not storing the ...
nojiyi4811's user avatar
0 votes
1 answer
2k views

YubiKey not working (device not found) in WSL while it works perfect under Windows directly

I use Yubikey to connect to multiple servers. I am doing this under windows and this works perfectly fine with my sshconfig in the .ssh directory. Now I have a case where I need to run some things ...
Hakairo's user avatar
1 vote
1 answer
453 views

How can I use a U2F hardware authenticator to unlock a SSH key in a computer I am SSH'd into?

I have a number of computers on which I've generated a ed25519-sk SSH key all using the same U2F hardware authenticator (yubikey 5C NFC). I'm now in a situation involving three computers: X, Y, and Z. ...
ahelwer's user avatar
  • 123
1 vote
2 answers
2k views

Unable to use Windows OpenSSH agent with GPG Agent and Yubikey

I have a Yubikey which has ed25519 certificates loaded onto it. One of these is an authentication certificate. I'm able to export the sha has of this by running gpg --export-ssh-key {key_id}, and ...
Desultory's user avatar
  • 318
0 votes
0 answers
364 views

YubiKey changed identity

I unplugged my YubiKey und plugged it in a while later. When I try to login on websites using the hardware key I now get a popup from Chrome stating "the security key doesn't look familiar". ...
C5H8NNaO4's user avatar
  • 185
2 votes
1 answer
267 views

Can a website detect if the same physical FIDO key is used for multiple accounts?

If I have an account, say with google, and only use that account from location A, using device A, and another google account only used with device B in location B, if I used the same 2fa FIDO key for ...
user1710978's user avatar

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