TermBot - SSH with YubiKey, Nitrokey, OpenPGP card – Apps bei Google Play
Yubikey の購入ガイド | Ouvill のブログ
YubiKey 5 NFC - USB-A, klíč/token s vícefaktorovou autentizaci (NFC, MIFARE), podpora OpenPGP a Smart Card (2FA) - NETRA
Using an OpenPGP Smartcard with GnuPG
Nitrokey | Secure your digital life
File:Gemalto usb shell token with a punched OpenPGP card inside.jpg - Wikimedia Commons
$2 USB crypto token for use with GPG and SSH | danman's blog
Open PGP SmartCard V3.4
Using an OpenPGP card in the UbuntuPhone BQ E4.5
SSH into Google Compute Engine VMs with OpenPGP USB token/SmartCard – Matěj Laitl a.k.a. strohel – Technical Blog
YubiKey NEO OpenPGP SmartCard modes
PGP Portable USB - YouTube
Open PGP SmartCard V2.1 ID-000
Using an OpenPGP Smartcard with GnuPG
TurtleAuth: Let's Make a DIY GPG USB Key - Hackster.io
TermBot | Hardware Security SDK
GnukトークンでSSH
TurtleAuth: Let's Make a DIY GPG USB Key - Hackster.io
GitHub - ronaldvdmeer/yubikey-openpgp-macos-catalina: This tutorial describes how to set up your Yubikey with macOS Catalina, generate the keys securely and make it work with your SSH client.