Blackbox

Create AES 256 bit encrypted loop devices (.img files) under Linux.

Requirements

• Linux
• Root access
• dd
• losetup

Manual

Create

IMGPATH=./.secure.img
dd if=/dev/urandom of=$IMGPATH bs=2k count=5M
LOOPDEV=$(losetup -f)
losetup -Te aes256 $LOOPDEV $IMGPATH
mkfs -t ext3 $LOOPDEV

Mount

IMGPATH=./.secure.img
MOUNTDIR=./secure
LOOPDEV=$(losetup -f)
losetup -e aes256 $LOOPDEV $IMGPATH
mount -t ext3 $LOOPDEV $MOUNTDIR

Umount

umount $LOOPDEV
losetup -d $LOOPDEV

Resize

IMGPATH=./.secure.img
dd if=/dev/urandom bs=2k count=5M >> $IMGPATH
LOOPDEV=$(losetup -f)
losetup -e aes256 $LOOPDEV $IMGPATH
fsck.ext3 -f $LOOPDEV
resize2fs $LOOPDEV
losetup -d $LOOPDEV

License

Copyright (C) 2010 Christian Mayer http://fox21.at

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.