LUKS / dm-crypt is also suitable for creating FS images that can be used to store important information:
1 2 3 4 5 6 7 8 9 10 11 12 | # dd if=/dev/urandom of=luks.img bs=1M count=100 # losetup /dev/loop0 luks.img # cryptsetup luksFormat /dev/loop0 -c aes-cbc-essiv:sha256 -s 256 ( or -c aes-xts-plain ) WARNING! ======== This will overwrite data on /dev/loop0 irrevocably # cryptsetup luksOpen /dev/loop0 luks # mkfs.ext2 /dev/mapper/luks # mkdir /mnt/luks # mount /dev/mapper/luks /luks |