I am attempting to add a homekey entry to my
/etc/crypttab in order to prevent entering a 3rd pass upon login on a 14.04 install w/ LUKS (root/swap/home). When I attempt to add the key using
cryptsetup luksAddKey I get the maximum keyfile size exceeded error.
I have attempted to use the
--keyfile-size 512 argument to see if it would override it, but it did not fix it.
Also, is there a way to do this same process for the swap, so that I only have to enter one password at boot? Or would doing that sacrifice security?