How does YubiKey work with SSH?
Table of Contents
How does YubiKey work with SSH?
A YubiKey with OpenPGP can be used for logging in to remote SSH servers. In this setup, the Authentication subkey of an OpenPGP key is used as an SSH key to authenticate against a server. To ensure that the only way to log in is by using your YubiKey we recommend disabling password login on your SSH server.
How do I log into SSH with RSA key?
Testing the SSH login using RSA key
- On the client computer, start an SSH connection to the remote server. su trunks ssh [email protected].
- If required, enter the Key password. Enter passphrase for key ‘/home/trunks/.ssh/id_rsa’:
- After a successful login, the remote access will be authorized.
Can you store SSH keys on YubiKey?
You can use a Yubikey USB device to securely generate and store your SSH key. This can be used to load your private key on demand, protected by a PIN. Perfect for pair-programming on shared machines! This post is part of a series on using Yubikeys to secure development whilst pair-programming on shared machines.
Does YubiKey work on Linux?
The Yubico Pluggable Authentication Module (PAM) extends secure hardware-backed YubiKey two-factor authentication to existing Linux/Unix user authentication infrastructure.
What is SSH key pair?
The SSH key pair is used to authenticate the identity of a user or process that wants to access a remote system using the SSH protocol. The public key is used by both the user and the remote server to encrypt messages. On the remote server side, it is saved in a file that contains a list of all authorized public keys.
Does YubiKey store private key?
Yubikey Website: During the registration process, the key pairs are generated on the device (secure element) but the key pairs are not stored on the YubiKeys. Instead, the key pair (public key and encrypted private key) are stored by each relying party/service that initiated the registration.
How do I get my private key on YubiKey?
Run gpg –list-secret-key and the subkeys from the Yubikey will appear. You may also run gpg –armor –export-secret-key and a private key will be printed (this private key does not seem to be able to perform any actions).
How do SSH keys work?
An SSH key relies upon the use of two related keys, a public key and a private key, that together create a key pair that is used as the secure access credential. The private key is secret, known only to the user, and should be encrypted and stored safely.
Where are SSH keys used?
An SSH key is an access credential for the SSH (secure shell) network protocol. This authenticated and encrypted secure network protocol is used for remote communication between machines on an unsecured open network. SSH is used for remote file transfer, network management, and remote operating system access.
What happens if I lose my YubiKey?
If you lose your Yubikey, you can still use your phone authenticator app, but you cannot create a backup Yubikey. However, Yubikey also provides methods to recover your account, so you can get a replacement. An advantage to Yubikey is that it comes on a USB that cannot be identified.
What is my YubiKey pin?
Technical details about the YubiKey PIV implementation. The default PIN code is 123456. The default PUK code is 12345678. The default 3DES management key (9B) is 010203040506070801020304050607080102030405060708.
