Questions tagged [yubikey]

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1answer
35 views

How can I disable Yubikey's OTP?

I'm using a Yubikey and it is going wild: because of a bad contact, it relentlessly types every 3 seconds a code like this one on my interface: cccjgjgkhcbbirdrfdnlnghhfgrtnnlgedjlftrdafe How can I ...
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Just installed Yubico Yubikey for multifactor autentication and my MS Hotmail account in Evolution is suddenly failing authentication

I have just installed Yubikey and the authentication works for everything except now I have an authentication issue with my MS Hotmail account in Gnome evolution. I have uninstalled and re-added the ...
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1answer
248 views

Yubikey + VMware Horizon + Windows Remote Desktop

I use my personal computer with Ubuntu 20.04 to connect to my work Windows 10 client via VMware Horizon (Digital Workspace). I have accounts that use Yubikeys as smart cards. The Yubikeys are attached ...
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1answer
26 views

use github with yubikey without phone

I am using Xubuntu 18.04 and wonder if there is a way to use Two-factor authentication with github but without a phone. Currently I need to enter the verification number that is shown on my phone/nfc/...
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0answers
70 views

Yubikey and Disk Decryption

I'm using Xubuntu 20.04 and am having difficulty getting disk decryption working with my Yubikey. I've tried several tutorials that don't seem to work for me and was hoping someone could point me in ...
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0answers
14 views

Enabeing debug mode

Hello my name is Mr Bazzar? I have a question about enabling debug mode after requiring yubikey for login after imputing command (sudo touch /var/log/pam_u2f.log) or (sudo nano /etc/pam.d/gdm-...
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0answers
19 views

requiring system to use u2f keys

I was running test on yubico application test sudo echo test and when finished entering commands (sudo echo test)and press enter. I was "supposed to touch the yubikey when flashing" I was ...
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0answers
33 views

How to select the gpg agent used for ssh and other things?

I want to use qubes-gpg-client instead of the default gpg-agent that comes on ubuntu. How can I make it such that ssh and other things always use this custom agent instead of the default one?
1
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1answer
327 views

Sudo Broken - critical error PAM

I just got a Yubikey and tried to set it up to use it to login to my computer. I followed the instructions by hackerb9 in this post. Passwordless login with Yubikey 5 NFC It worked perfectly, but I ...
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0answers
159 views

pam_tally2 is counting successful logins as failures while using Yubikey

I'm using Yubikey's U2F feature as a second factor to login on Ubuntu 20.04 as described here: https://support.yubico.com/support/solutions/articles/15000011356-ubuntu-linux-login-guide-u2f However, ...
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0answers
36 views

How to prevent usb ports from sleeping

I'm using a yubikey security key in one of my usb ports and it's not ready most times when I want to use it (2-3 times per day). And I have to unplug and put in again for the key tab to be recognised....
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1answer
487 views

How do I set Ubuntu to unlock screensaver with Yubikey

When I have this key: https://support.yubico.com/support/solutions/articles/15000006900-security-key-by-yubico I would like to use it to lock the screen when I pull it out and go away from computer ...
2
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1answer
341 views

Apparmor enforce mode prevents Firefox from reading U2F security key

When the default apparmor profile for Firefox is set to enforce mode, it blocks access to security keys. Disabling the profile restores access. Rules that I've tried and failed: /sys/devices/** r, #...
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3answers
5k views

Passwordless login with Yubikey 5 NFC

I just bought a Yubikey 5 NFC and have set it up per their instructions on Ubuntu 19.04. But my preferred use case is to use the key as passwordless option (if it's plugged in; allow access - if it's ...
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1answer
115 views

If Yubikey with 2 factor auth is used on Ubuntu 19.04 can the OS be hacked via bluetooth? Or any other way remotely?

I have had issues with Ubuntu being hacked, I recently added a Yubikey with 2-factor authentication and encrypted the OS via LUKs. Is there any way that a hacker could breach my system via Bluetooth ...
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0answers
417 views

Yubikey on multiple LUKS drives

I have the following LUKS partitions: root@precision:~# blkid | grep crypto_LUKS /dev/nvme0n1p3: UUID="e1ac241d-a91c-4386-9b08-752dc5d0e9b8" TYPE="crypto_LUKS" PARTUUID="91fc5b71-7c22-4e3e-821d-...
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1answer
864 views

Locked out from system after adding Yubikey 2FA

I followed the official Yubico guide to enable Challenge-Response 2FA on my account, However on a reboot the login prompts for the Yubikey, then asks for my password, and then repeats these 2 prompts ...
2
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0answers
204 views

ssh-add does not see PGP key

I have my PGP key on my YubiKey and it works well on my MacBook, but it isn't working correctly on my Ubuntu 18.04 laptop. I am able to use gpg --card-status and it correctly shows the key along with ...
1
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0answers
377 views

pam_oath + yubikey: can login with yubikey but not unlock lockscreen

I'm using pam_oath.so from the libpam_oath package to use my yubikey to login. Its configured as OATH-HOTP and it's working fine. I can login with my pin and a press on my yubikey. I dont need to ...
0
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1answer
298 views

Ubuntu 16.04: How to update YubiKey Personalization Tool (GUI) with latest library?

I have a new Yubikey 4 with firmware v4.3.5. I've downloaded YubiKey Personalization Tool v3.1.24 (here), moved it to my offline machine and compiled it after I've installed all needed .deb-files (...
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2answers
2k views

Using a Yubikey with LUKS on Removable Storage

I'm trying to use a Yubikey 4 as a second factor to access a LUKS-encrypted USB HDD. Here's how far I've gotten: I'm using yubikey-luks to add my HMAC-SHA1 hashed password to slot 7 of the device. ...
4
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1answer
6k views

How to install Yubikey personalization tool on Ubuntu

How to install binary version of https://www.yubico.com/support/downloads for Ubuntu. I'm using 14.04 LTS. [edit] Also how to fix "An unexpected error has occurred" in Google Account
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2answers
3k views

How do I use a Yubikey NEO in 14.04 to log into a Google account through Chrome?

How do I make Ubuntu 14.04 recognize a Yubikey NEO for Google account authentication? I have yubikey NEO and Chrome version 46.0.2490.80. I have used the key successfully on a laptop running Windows ...
30
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4answers
33k views

Yubikey Two-factor Authentication Full-disk Encryption via LUKS

I recently acquired a Yubikey Neo - a nifty little hardware second factor authentication device. It's primarily intended for use with One Time Passwords, and the emerging U2F protocol - but since ...