how to create an encrypted ext3 filesystem using "cryptsetup"?
Michael H. Warfield
mhw at wittsend.com
Mon Jun 21 17:34:48 UTC 2004
Hello,
I missed the earlier part of this thread, but I'm using dm_crypt
and cryptsetup with a microvault drive (256Meg USB key drive) and ext3
just fine.
On Mon, Jun 21, 2004 at 01:03:51PM -0400, Robert P. J. Day wrote:
> On Mon, 21 Jun 2004, Dale wrote:
> >The URL info from "rpm -qi cryptsetup" leads to
> > http://www.saout.de/misc/dm-crypt/
> >which has information about cryptsetup.
> been there all morning, following the docs. still something missing.
Here is a fragment of the script I use to mount my encrypted
microvault:
] export CRYPTO_DEVICE=/dev/sda1
]
] if [ -b /dev/mapper/crypto.mhw ] ; then
] cryptsetup remove crypto.mhw
] fi
]
] cryptsetup -c aes -h ripemd160 -b `blockdev --getsize $CRYPTO_DEVICE` \
] create crypto.mhw $CRYPTO_DEVICE
]
] mount /dev/mapper/crypto.mhw /mnt/microvault
If you are still getting a error, check and make sure you've got
the device_mapper functioning...
[root at canyon mhw]# ls /dev/mapper/
control crypto.mhw
[root at canyon mhw]# lsmod | grep dm
dm_mod 32800 0
After running cryptsetup, you should have something like this:
[root at canyon mhw]# lsmod | grep dm
dm_crypt 7048 1
dm_mod 32800 2 dm_crypt
Plus you'll have some algorithm modules like aes and maybe a couple
of others.
> rday
Mike
--
Michael H. Warfield | (770) 985-6132 | mhw at WittsEnd.com
/\/\|=mhw=|\/\/ | (678) 463-0932 | http://www.wittsend.com/mhw/
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