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List:       dm-crypt
Subject:    Re: [dm-crypt] Extract master key from running system
From:       Arno Wagner <arno () wagner ! name>
Date:       2011-07-30 18:42:57
Message-ID: 20110730184257.GA4529 () tansi ! org
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I just added a link to the script by Milan and
an explanation on how to do this manually to the
FAQ.

Arno


On Thu, Jul 28, 2011 at 09:14:01AM +0200, Milan Broz wrote:
> On 07/28/2011 07:04 AM, Arno Wagner wrote:
> > I have to admit that there is no info in the FAQ because when I wrote 
> > that I did not have time to find out. In the mean time I have had
> > an opportunity to do so, so I should probably update the FAQ. First, 
> > I think trying to dump will not create additional damage. Here is what 
> > works on my machine:
> > 
> >  cryptsetup luksDump --dump-master-key 
> 
> For luksDump you need valid LUKS header.
> 
> btw I added script which tries to extract master key automatically
> fro active device and prepares cryptsetup parameters.
> 
> http://code.google.com/p/cryptsetup/source/browse/trunk/misc/luks-header-from-active
> 
> The steps there are quite straightforward.
> 
> Milan
> 
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-- 
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 
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