In order to use a GnuPG key on a smartcard or Yubikey, a GnuPG key needs to be created. This post will show you how to create a GnuPG key with sub-keys for signing, encryption and authentication. The authentication key can be used later on to authenticate via ssh as well.

Protect sensitive information with Fluidkeys. Share tokens and certificates securely among the team, encrypt your emails and sign and verify git commits. Fluidkeys works with git, GPG, Enigmail, GPGSuite, Mailvelope and pass.

Slax is a modern, portable, small and fast Linux operating system.

Debian-based, takes around 300MB.