All of lore.kernel.org
 help / color / mirror / Atom feed
From: Arno Wagner <arno@wagner.name>
To: dm-crypt@saout.de
Subject: Re: [dm-crypt] tool to account the written number of bytes to a	block device (was: XTS cipher mode limitations)
Date: Sun, 22 Aug 2010 18:01:14 +0200	[thread overview]
Message-ID: <20100822160114.GA11722@tansi.org> (raw)
In-Reply-To: <1282481812.3241.50.camel@fermat.scientia.net>

bwm-ng does it, so it must be possible. 
I think /proc/diskstats is the place to look.

Arno

On Sun, Aug 22, 2010 at 02:56:52PM +0200, Christoph Anton Mitterer wrote:
> Hi.
> 
> 
> Regarding this attacks involving snapshots and the total amount of data
> written to an encrypted volume.
> 
> Is there an easy way or perhaps even a working tool, which accounts the
> total amount of bytes written to a given block device (either directly
> or via something that is on top of that block device (filesystem or
> other block device layers)?
> 
> Cheers,
> Chris.



> _______________________________________________
> dm-crypt mailing list
> dm-crypt@saout.de
> http://www.saout.de/mailman/listinfo/dm-crypt


-- 
Arno Wagner, Dr. sc. techn., Dipl. Inform., CISSP -- Email: arno@wagner.name 
GnuPG:  ID: 1E25338F  FP: 0C30 5782 9D93 F785 E79C  0296 797F 6B50 1E25 338F
----
Cuddly UI's are the manifestation of wishful thinking. -- Dylan Evans

If it's in the news, don't worry about it.  The very definition of 
"news" is "something that hardly ever happens." -- Bruce Schneier 

  reply	other threads:[~2010-08-22 16:01 UTC|newest]

Thread overview: 55+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-07-22 14:57 [dm-crypt] Efficacy of xts over 1TB David Santamaría Rogado
2010-07-25 10:34 ` Arno Wagner
2010-07-25 11:18   ` Christoph Anton Mitterer
2010-07-25 12:29     ` Heinz Diehl
2010-07-25 12:25   ` Milan Broz
2010-07-25 13:14     ` Christoph Anton Mitterer
2010-07-25 13:52       ` Milan Broz
2010-07-25 22:37         ` Christoph Anton Mitterer
2010-07-26  0:14           ` Milan Broz
2010-07-26 20:38             ` Christoph Anton Mitterer
2010-07-27  8:46               ` [dm-crypt] Using plain64/plain IV (initialisation vector) in dm-crypt Milan Broz
2010-07-27 10:47                 ` Arno Wagner
2010-07-27 14:17                   ` Christoph Anton Mitterer
2010-07-27 16:08                     ` Arno Wagner
2010-07-27 14:15                 ` Christoph Anton Mitterer
2010-07-27 15:45                   ` Mario 'BitKoenig' Holbe
2010-07-27 15:55                     ` Milan Broz
2010-07-27 18:59                       ` Christoph Anton Mitterer
2010-07-27 19:37                         ` Arno Wagner
2010-07-27 18:58                     ` Christoph Anton Mitterer
2010-07-27 19:35                       ` Mario 'BitKoenig' Holbe
2010-07-28  8:42                     ` Milan Broz
2010-08-20 21:11                       ` [dm-crypt] XTS cipher mode limitations Christoph Anton Mitterer
2010-08-21  0:22                         ` Arno Wagner
2010-08-22 12:50                           ` [dm-crypt] XTS cipher mode limitations (FAQ additions) Christoph Anton Mitterer
2010-08-23  0:46                             ` Arno Wagner
2010-08-25  9:36                               ` Christoph Anton Mitterer
2010-08-22 12:56                           ` [dm-crypt] tool to account the written number of bytes to a block device (was: XTS cipher mode limitations) Christoph Anton Mitterer
2010-08-22 16:01                             ` Arno Wagner [this message]
2010-08-22 21:57                               ` Christoph Anton Mitterer
2010-08-23  7:14                                 ` [dm-crypt] tool to account the written number of bytes to a block device Milan Broz
2010-08-25  9:27                                   ` Christoph Anton Mitterer
2010-08-24 16:19                           ` [dm-crypt] XTS cipher mode limitations Ramius
2010-07-26  8:53           ` [dm-crypt] Efficacy of xts over 1TB Arno Wagner
2010-07-26 20:47             ` Christoph Anton Mitterer
2010-07-26 21:01               ` Arno Wagner
2010-07-26 21:28                 ` Christoph Anton Mitterer
2010-07-26 21:35                   ` Arno Wagner
2010-07-25 22:52         ` Christoph Anton Mitterer
2010-07-26  9:42           ` Mario 'BitKoenig' Holbe
2010-07-26 18:09             ` Arno Wagner
2010-07-27 18:16               ` [dm-crypt] Including the FAQ in the tarball? Christoph Anton Mitterer
2010-07-27 18:23                 ` Arno Wagner
2010-07-29  8:17                 ` Heinz Diehl
2010-07-25 15:32       ` [dm-crypt] Efficacy of xts over 1TB Arno Wagner
2010-07-25 22:48         ` Christoph Anton Mitterer
2010-07-25 23:42           ` Milan Broz
2010-07-26 18:35             ` Christoph Anton Mitterer
2010-07-25 15:28     ` Arno Wagner
2010-07-25 18:11       ` Milan Broz
2010-07-26  9:04   ` Mario 'BitKoenig' Holbe
2010-07-27 18:21     ` Christoph Anton Mitterer
2010-07-27 21:02       ` Mario 'BitKoenig' Holbe
2010-07-26  9:17 ` Mario 'BitKoenig' Holbe
2010-07-27 18:42 ` David Santamaría Rogado

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=20100822160114.GA11722@tansi.org \
    --to=arno@wagner.name \
    --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.