OSEC

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Re: [suse-security] Encrypted devices unsalted

From: Thomas Biege (thomassuse.de)
Date: Mon Feb 28 2005 - 05:01:34 CST


Hello.
Thank you for this hint. I'll forward it.

On Fri, Feb 25, 2005 at 10:59:33AM +0200, 2005 wrote:
> SuSE 9.2 creates encrypted volumes without salting the
> password/key. While this is not a problem for long binary keys,
> it simplifies a dictionary attack against a shorter ascii keys.
>
> man losetup says:
>
> -S pseed
> Sets encryption password seed pseed which is appended to
> user supplied password before hashing. Using different
> seeds for different partitions makes dictionary attacks
> slower but does not prevent them if user supplied password
> is guessable.
>
> &:-)
>
> --
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> Security-related bug reports go to securitysuse.de, not here

--
Bye,
     Thomas
--
 Thomas Biege <thomassuse.de>, SUSE LINUX AG, Security Support & Auditing
--
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                  Nothing to kill or die for, No religion too, ...
                                -- John Lennon (Imagine Lyrics)

--
Check the headers for your unsubscription address
For additional commands, e-mail: suse-security-helpsuse.com
Security-related bug reports go to securitysuse.de, not here