Key9 Identity
  • Welcome To Key9 Identity
  • SSH
    • Installation & Setup
      • MacOS Yubikey Smartcard/PIV instructions.
        • 1. Installation of MacOS software
        • 2. Changing the Yubikey PIN.
        • 3. Generating Keys and Certificates for the Yubikey
        • 4. Enrolling the public key to Key9
        • 5. Testing and configuring SSH
      • Windows Yubikey Smartcard/PIV instructions
        • 1. Installation of Windows software.
        • 2. Getting the system ready for libykcs11.dll
        • 3. Adding libykcs11.dll to SSH configurations.
        • 4. Generating Keys and Certificates for the Yubikey
        • 5. Enrolling the public key to Key9
        • 6. Testing your SSH key.
      • OpenSSH with Yubikey / FIDO2 protected keys
        • 1. Prerequisites
        • 2. OpenSSH command for Yubkey FIDO2
        • 3. Enrolling your public key to Key9
        • 4. Testing your SSH key
      • Setting a Yubikey PIN without Yubikey software.
        • 1. Using Key9 "registration" to register a new Yubikey PIN.
        • 2. Using "webauthn.io" to register a new Yubikey PIN.
      • RSA Password Protected SSH Key
        • 1. Key9 Settings to allow RSA
        • 2. Generating RSA SSH Key
        • 3. Enrolling your public key to Key9
        • 4. Testing your SSH key
      • Determine your Yubikey Type
        • 1. Linux "lsusb" command
        • 2. MacOS "ioreg" command
        • 3. Windows 11
      • Useful External Links
      • Windows Powershell with Yubikey/FIDO2-protected SSH keys
        • 1. Download OpenSSH for Windows.
        • 2. Setting up your SSH keys
        • 3. Enrolling your public key to Key9
      • Technical Notes
        • Pop!_OS - "agent refused operation"
      • Key9 SSH for Debian 12 [Bookworm] Howto
        • 1. Installing GPG
        • 2. Configuring the Key9 Debian 12 Repo.
        • 3. Configuring the Key9 SSH client
        • 4. Configuring Name Service Switch [/etc/nsswitch.conf]
        • 5. Configuring the OpenSSH server
        • 6. Modifying "sudoers" [optional]
        • 7. Configuring "k9-tail" for logs [optional]
        • 8. Automatic home directory creation [optional]
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  1. SSH
  2. Installation & Setup
  3. OpenSSH with Yubikey / FIDO2 protected keys

1. Prerequisites

To use your Yubikey with SSH keys and FIDO, you may need to install additional software, including libraries and command line tools to communicate with a FIDO driver over NFC or USB. Below are instructions on how to install these ulitilies for your operating system.

Debian 12

$ sudo apt-get install fido2-tools libfido2-1 libfido2-dev

Fedora 35 and 34

$ sudo dnf install libfido2 libfido2-devel fido2-tools

Ubuntu 22.04 (Jammy) and 20.04 (Focal)

$ sudo apt install libfido2-1 libfido2-dev libfido2-doc fido2-tools

Ubuntu 18.04 (Bionic) - via Yubico PPA. 

$ sudo apt install software-properties-common
$ sudo apt-add-repository ppa:yubico/stable
$ sudo apt update
$ sudo apt install libfido2-1 libfido2-dev libfido2-doc fido2-tools

MacOS

brew install libfido2

For more information about installing libfido2 libraries and tools, see https://developers.yubico.com/libfido2/

PreviousOpenSSH with Yubikey / FIDO2 protected keysNext2. OpenSSH command for Yubkey FIDO2

Last updated 29 days ago