From: Milan Broz <mbroz@redhat.com>
To: dhvvcb@lavabit.com
Cc: dm-crypt@saout.de
Subject: Re: [dm-crypt] Using dmsetup directly instead of cryptsetup
Date: Sat, 21 May 2011 21:33:00 +0200 [thread overview]
Message-ID: <4DD8136C.2090703@redhat.com> (raw)
In-Reply-To: <1306003236.10131.75.camel@localhost>
On 05/21/2011 08:40 PM, dhvvcb@lavabit.com wrote:
> Usually I run command
>
> cryptsetup -d /path/to/key -c aes-cbc-essiv:sha256 -s 256 create
> hdd2 /dev/sdc
>
> and /dev/mapper/hdd2 is created.
>
> I tried to follow the example given on home page
> http://www.saout.de/misc/dm-crypt/
That page is pretty obsolete today, http://code.google.com/p/cryptsetup/
is home page now.
Why do you want to use dmsetup?
Anyway,
cryptsetup -d /key -c aes-cbc-essiv:sha256 -s 256 create x /dev/sdb
is equivalent to
echo 0 $(blockdev --getsz /dev/sdb) crypt aes-cbc-essiv:sha256 $(xxd -p -c 32 </key) 0 /dev/sdb 0 | dmsetup create x
(xxd is helper program in vim package)
I guess the hex representation is just wrong in your case,
hexdump produces different order of bytes.
Use cryptsetup a check with "dmsetup table --showkeys".
Milan
prev parent reply other threads:[~2011-05-21 19:33 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-21 18:40 [dm-crypt] Using dmsetup directly instead of cryptsetup dhvvcb
2011-05-21 19:33 ` Milan Broz [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4DD8136C.2090703@redhat.com \
--to=mbroz@redhat.com \
--cc=dhvvcb@lavabit.com \
--cc=dm-crypt@saout.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.