Re: LUKS header lost. Encryption key on USB thumbdrive

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On Thu, Feb 14, 2008 at 03:41:32PM +0100, Lars G. Sander wrote:
> 
> That would be the master key that "vanished" with the header, right?

Exactly.

> That way I am out of luck as it seems. I did not manually make a
> backup of the LUKS header and I don't have a "dd" of that partition
> lying around (I do have a backup of the data though).

Good. That backup seems now to be the only accessible copy of 
your data.

> - What are my chances of finding header information on the disk with hexdump?

If it is there, you can find it. Best just look for the 
LUKS_MAGIC, documented in the on disk format documentation.
You also know that this is most likely at a 512 byte boundary. 
Then use any search mechanism.

> - Is there a documented way of backing up the LUKS header?

The LUKS FAQ is your friend....

Arno

-- 
Arno Wagner,   Dipl. Inform.,  CISSP    ---    Email: arno@xxxxxxxxxxx 
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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