There is: https://www.esev.com/blog/post/2015-01-pgp-ssh-key-on-yubikey-neo/ https://www.esev.com/blog/post/2015-01-pgp-ssh-key-on-yubike... https://developer

There is: https://www.esev.com/blog/post/2015-01-pgp-ssh-key-on-yubikey-neo/ https://www.esev.com/blog/post/2015-01-pgp-ssh-key-on-yubike... https://developers.yubico.com/PIV/Guides/SSH_with_PIV_and_PKCS11.html https://developers.yubico.com/PIV/Guides/SSH_with_PIV_and_PK... The yubikey (at least some models) can work as a smartcard.