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+====== crypsetup ======
+  * [[Filesystems]]
+  * [[Gentoo]]
+  * [[mdadm]]
+  * [[http://www.jootamam.net/howto-basic-cryptsetup.htm|Howto: Basic cryptsetup]]
+==== Create New Encrypted Device ====
+In this example, a hard drive device ''/dev/sda'' will have three partitions: root, swap, encrypted filesystem.
+Create an encrypted swap partition on ''/dev/sda2'':
+<code>
+cryptsetup -c blowfish -h sha256 -d /dev/random create swap /dev/sda2
+</code>
+This will create the encrypted device ''/dev/mapper/swap''.  At this point, you can format it as normal:
+<code>
+mkswap /dev/mapper/swap
+</code>
+Now, create the new encrypted device.  It will not ask for a name here, only when you open it.
+<code>
+cryptsetup --verify-passphrase luksFormat /dev/sda3
+</code>
+Unlock the encrypted device and name it ''luks0'':
+<code>
+cryptsetup luksOpen /dev/sda3 luks0
+</code>
+Format the new device with a filesystem:
+<code>
+mkfs.ext4 /dev/mapper/luks0
+</code>
+==== Mount an Encrypted Device ====
+Access the encrypted device and give it a name, in this case ''luks0'':
+<code>
+cryptsetup luksOpen /dev/sda3 luks0
+</code>
+This will create a device ''/dev/mapper/luks0'', which you can then mount as normal:
+<code>
+mount /dev/mapper/luks0 /mnt/luks0
+</code>

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