Linux File System Encryption

# Use loop

Modprobe cryptoloop

Dd if =/dev/zero of =./partition_file0 bs = 1 k count = 1024

Losetup-e aes/dev/loop0./partition_file0 # partion_file0 is not required. You can directly use the/dev/sd * partition.

Mkfs. ext3/dev/loop0

Mount/dev/loop0/mnt/some_dir

Umount/dev/loop0

Loopsetup-d/dev/loop0

# Using dm

Apt-get install cryptsetup

Modprobe dm-crypt

Cryptsetup-y create aes_crypted_partition/dev/sd * # aes is used by default. Please use man cryptsetup to query

Dmsetup ls

Mkfs. ext3/dev/mapper/aes_crypted_partition

Mount/dev/mapper/aes_crypted_partition/mnt/smoe_dir

Umount/dev/mapper/aes_crypted_partition

Cryptsetup remove aes_crypted_partition