Ciao,
ecco uno script, tratto leggendo la guida che trovate qui.
CreateLuksDev.sh crea un device cifrato con LUKS sul device specificato, dopo aver riempito lo stesso con dati random.
Per utilizzare il device anche su Windows, utilizzate FreeOTFE.
ATTENZIONE: tutti i dati della chiavetta vengono persi.
#!/bin/bash
###############################################################################
# AUTHOR BM 20090505
# Copyright (C) 2009 Beppe Medeghini
# Licensed under the terms of the GNU General Public License version 2 (only).
# Source GUIDE:
# http://www.g-loaded.eu/2005/11/10/encrypt-devices-using-dm-crypt-and-luks/
# History: V1.0 2009/05/05
###############################################################################
if [ $# != 2 ]
then
echo Usage: CreateLuksDev.sh device dev_name
echo
echo device is in the form /dev/sdc1
echo dev_name is a string
exit 1
fi
echo DEVICE = $1
echo DEVICE_NAME = $2
echo FSTYPE = FAT32
echo Filling with random data... please wait. This step is slow
echo Approx 5 min per 1 Gb on hard disk
echo If you want to know the actual statei => kill -USR1 `pidof dd`
echo dd if=/dev/urandom of=$1
dd if=/dev/urandom of=$1
echo Creating luks device
cryptsetup --verbose --verify-passphrase luksFormat $1
echo Opening luks device
cryptsetup luksOpen $1 encrdev
echo Creating FAT32 filesystem
mkfs.vfat -v -F 32 -n "$2" /dev/mapper/encrdev
echo Mounting
mkdir /mnt/pen/
mount -t vfat -o rw /dev/mapper/encrdev /mnt/pen/
echo Device mounted on /mnt/pen/
echo "********************************************************"
echo "* TO MOUNT"
echo "* cryptsetup luksOpen $1 encrdev"
echo "* mount /dev/mapper/encrdev /mnt/pen"
echo "********************************************************"
echo "********************************************************"
echo "* TO UNMOUNT"
echo "* umount /mnt/pen/"
echo "* cryptsetup luksClose encrdev"
echo "********************************************************"
