❌ DittoNov 6, 2023

After months of procrastination, I finally moved to using #yubikey stored #privateSSHkeys . This was a short and sweet guide that helped get things working within 20 minutes or less:
https://xeiaso.net/blog/yubikey-ssh-key-storage/

TL;DR version:
a. Install yubikey-manager
b. Generate a key to be stored on yubikey:
ssh-keygen -t ed25519-sk -O resident
c. list public key: ssh-add -L
d. add to ssh-agent: ssh-add -K

Works on any machine you plug yubikey into. Requires touch on use

How to Store an SSH Key on a Yubikey - Xe Iaso

Samuel Vermeulen Feb 17, 2020
#ActuLibre OpenSSH now supports FIDO U2F security keys for 2-factor authentication -> http://feedproxy.google.com/~r/TheHackersNews/~3/PZoNEdHBet4/openssh-fido-security-keys.html #SSHpasswordcracking #FIDOU2FSecurityKey #hacksshpassword #privateSSHkeys #cybersecurity #FIDO2Protocol #FIDOAlliance #SSHClient #FIDOU2F #OpenSSH
OpenSSH now supports FIDO U2F security keys for 2-factor authentication

OpenSSH 8.2 Adds Support for FIDO U2F Security Key for Secure Two-Factor Authentication

The Hacker NewsFeb 17, 2020
OpenSSH now supports FIDO U2F security keys for 2-factor authentication https://thehackernews.com/2020/02/openssh-fido-security-keys.html #SSHpasswordcracking #FIDOU2FSecurityKey #hacksshpassword #privateSSHkeys #cybersecurity #FIDO2Protocol #FIDOAlliance #SSHClient #FIDOU2F #OpenSSH
OpenSSH now supports FIDO U2F security keys for 2-factor authentication

OpenSSH 8.2 Adds Support for FIDO U2F Security Key for Secure Two-Factor Authentication