key2col generates a columnar cipher from an aristocrat key. The
input filename must be an aristocrat saved file from the
ctool program. The output of this program is
another ctool save file that can be loaded
into ctool. This new save file is a
complete columnar cipher with period 26.
By converting the aristocrat key to a columnar cipher, one may then
change the key ordering in order to recover the K3/K4 mixed alphabets.