[dm-crypt] Retrieve the Passphrase from RAM Memory

octane indice octane at alinto.com
Tue Sep 27 13:53:33 CEST 2011


En réponse à Eduardo Schultze <duduschultze at gmail.com> :
> 
> Hello,
> 
> I'm a Security Information student at Unisinos College,
> Brazil. As a paper during this semester it was me and
> my colleagues choice to write a paper
> about LUKS on Ubuntu 10.4.
> 
> My question is -  Is it possible to retrieve the passphrase
> from RAM memory after a successful authentication and
> shutdown? Is this case we would turn the system on,
> authenticate, turn off, and then check if the passphrase
> would still be in the RAM memory even with the turned off
> computer.
> 
The passphrase, I don't think so, but the master key, yes
for sure.
Here is a paper in french (maybe google translate can
help) where somebody gets the master key, then use it 
for reading data:
http://sylv1.tuxfamily.org/2008/240/gout-de-luks.html

Hope this helps

> ------------------------------------------




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