Debian 9 “stretch”

General

apt-get install gnupg2 gnupg-agent pcscd pcsc-tools scdaemon libusb-1.0-0 libccid
service udev restart

Yubikey

apt-get install libu2f-host0 yubikey-personalization yubikey-personalization-gui ykneomgr
service udev restart

Note

There are new GUI and CLI tools currently in beta for Yubikeys. See Yubikey Manager and its CLI (ykman).

Further initial setup needs explained in [YubiEdit]:

# check USB devices
lsusb
# Yubikey listed?

# make sure CCID mode is enabled
# note: -m86 is also possible, it enables all modes
ykpersonalize -m6

# check basic information of your yubikey
ykinfo -a

# check smart card readers
# pcsc_scan
# Yubikey listed?

# connect to key's GPG app and output version
gpg-connect-agent --hex "scd apdu 00 f1 00 00" /bye
# D[0000]  04 03 04 90 00
# OK
# -> means: v4.3.4

# OpenPGP Version 1 or 2 card?
gpg2 --card-status | grep Version
# Version ..........: 2.1

Note

to do: yubi touch setup

Nitrokey