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From: Arno Wagner <arno@wagner.name>
To: dm-crypt@saout.de
Subject: Re: [dm-crypt] password -md5 in grub.conf/menu.lst
Date: Wed, 17 Aug 2011 17:50:31 +0200	[thread overview]
Message-ID: <20110817155031.GA14541@tansi.org> (raw)
In-Reply-To: <4E4BCD6C.7060708@mousecar.com>

This seems to be a config file option of grub-md5-crypt,
and has nothing to do with cryptsetup, dm-crypt or LUKS.

If I understand the documentation correctly, this is
an md5-ed password that either secures interactive Grub mode
or prevents script continuation before password entry.

The format seems to be the same as in /etc/shadow
for md5 passwords. You can read up on it here:

http://en.wikipedia.org/wiki/Shadow_password

Arno



On Wed, Aug 17, 2011 at 10:17:16AM -0400, ken wrote:
> 
> In grub/menu.lst file my /boot partition is a line like this:
> 
> password --md5 $1$Mb9vxXPV$pAbcdTxr4Twh32XXgns2/
> 
> The last bit is 35 characters long.
> 
> 
> Is this the hash digest of the passphrase?  Is the final slash character
> (/) just another character or is it in some way especially significant?
> 
> tnx
> _______________________________________________
> 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:[~2011-08-17 15:50 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-08-17 14:17 [dm-crypt] password -md5 in grub.conf/menu.lst ken
2011-08-17 15:50 ` Arno Wagner [this message]
2011-08-17 16:11   ` Arno Wagner

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