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--- useful:encryption [2009/01/05 15:16] – chemist
+++ useful:encryption [Unknown date] (current) – removed - external edit (Unknown date) 127.0.0.1
@@ Line 1: / Line 1: @@
-====== encryption ======
-===== harddisks usbkeys =====
-==== dm-crypt & luks ====
-<code bash>
-#crypt device
-cryptsetup -y -c aes-cbc-essiv:sha256 -s 256 luksFormat /dev/"device_name"
-#open device
-cryptsetup luksOpen /dev/"device_name" "crypt_name"
-#make filesystem
-mkfs.ext4 /dev/mapper/"crypt_name"
-#mount and fill with random data (fast way)
-mount /dev/mapper/"crypt_name" /mnt/
-randfs /mnt/random.file
-#umount and close crypt
-umount /mnt/
-cryptsetup luksClose "crypt_name"</code>
-=== links ===
-[[useful:encryption:randfs]]
-==== loop-aes with 100MB file ====
-<code bash>
-#create file crypt.aes 100MB
-dd if=/dev/urandom of=./crypt.aes bs=2k count=50000
-#setup loop, you will be prompted for passphrase
-losetup -e aes /dev/loop0 ./crypt.aes
-#make FS
-mkfs.ext3 /dev/loop0
-#release loop
-losetup -d /dev/loop0</code>
-edit /etc/fstab
-<code bash>
-/crypt.aes /mnt/       ext3    noauto,encryption=aes   0       0
-</code>