Encrypted /home with cryptsetup easy and fast

1: partition;

modprobe dm-crypt aes-x86_64

cryptsetup -c aes-xts-plain -y -s 512 luksFormat /dev/sda4

# Also remember that in order for other accounts to still be able to unlock this partition, you need to add all Linux account passwords as keys to unlock the partition.

cryptsetup luksAddKey /dev/sda4

cryptsetup luksOpen /dev/sda4 home

ls /dev/mapper/home

mkfs.ext4 -O dir_index /dev/mapper/home

<volume fstype="crypt" path="/dev/sda4" mountpoint="/home" />

2: file

losetup -f /path/file

cryptsetup -c aes-xts-plain -y -s 512 luksFormat /dev/loop0

# Also remember that in order for other accounts to still be able to unlock this partition, you need to add all Linux account passwords as keys to unlock the partition.

cryptsetup luksAddKey /dev/loop0

cryptsetup luksOpen /dev/loop0 home

ls /dev/mapper/home

mkfs.ext4 -O dir_index /dev/mapper/home

<volume fstype="crypt" path="/dev/sda4" mountpoint="/home" options="loop"/>