YubiKey lock screen

What

I'm trying to make my fedora desktop lock the screen and unlock when it sees my key in.

HOW

Get the serial, idVendor, idProduct of the thing.

udevadm info -a -p $(udevadm info -q path -n /dev/hidraw0)

Create a /etc/udev/rules.d/85-screen-lock-toggle.rules

KERNEL=="hidraw?" ACTION=="remove", ATTRS{serial}=="0001484196", ATTRS{idVendor}=="1050", ATTRS{idProduct}=="0010", RUN+="/usr/local/bin/gnome-lock-disable"
KERNEL=="hidraw?" ACTION=="add", ATTRS{serial}=="0001484196", ATTRS{idVendor}=="1050", ATTRS{idProduct}=="0010", RUN+="/usr/local/bin/gnome-lock-enable"

Also you should probably reload the rules:

udevadm control --reload-rules

And you should create the 2 scripts:

~# cat /usr/local/bin/gnome-lock-enable
#!/bin/bash
echo "$(date) $0" >> /tmp/yubi_lock_log
user=`ps aux | grep gnome-screensaver | head -n 1 | awk '{print $1}'`
if [ -n $user ]; then
	GNOME_SCREENSAVER_PROC=`ps xa | grep gnome-screensaver | head -n 1 | awk '{print $1}'`
	export `grep -z DBUS_SESSION_BUS_ADDRESS /proc/$GNOME_SCREENSAVER_PROC/environ`
	su $user -c "gconftool-2 --set "/apps/gnome-screensaver/lock_enabled" --type bool 1"
fi
~# cat /usr/local/bin/gnome-lock-disable 
#!/bin/bash
echo "$(date) $0" >> /tmp/yubi_lock_log 
user=`ps aux | grep gnome-screensaver | head -n 1 | awk '{print $1}'`
if [ -n $user ]; then
	GNOME_SCREENSAVER_PROC=`ps xa | grep gnome-screensaver | head -n 1 | awk '{print $1}'`
	export `grep -z DBUS_SESSION_BUS_ADDRESS /proc/$GNOME_SCREENSAVER_PROC/environ`
	su $user -c "gconftool-2 --set "/apps/gnome-screensaver/lock_enabled" --type bool 0"
fi