Original /etc/cypthotab:
     /dev/loop0  /dev/hda3       /abuild  reiserfs  twofish  noatime
     /dev/loop1  /tmp/cryptfile  /mnt     ext2      twofish  noatime
     ...
   Read(.etc.cryptotab)
   ([$["file":"/dev/hda3", "loop":"/dev/loop0",
	 "vfstype":"reiserfs", "mount":"/abuild", "opt1":"twofish" ,
	  "opt2", "noatime" ]
     ...
   ])
 
   (0)