Crypt target support

modulename: dm-crypt.ko

configname: CONFIG_DM_CRYPT

Linux Kernel Configuration
└─>Device Drivers
└─>Multiple devices driver support (RAID and LVM)
└─>Crypt target support
In linux kernel since version 2.6.20 (release Date: 2007-02-04)  
This device-mapper target allows you to create a device that
transparently encrypts the data on it. You'll need to activate
the ciphers you're going to use in the cryptoapi configuration.

For further information on dm-crypt and userspace tools see:

To compile this code as a module, choose M here: the module will
be called dm-crypt.

If unsure, say N.

source code: