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Date:      Tue, 27 Sep 2016 14:13:57 +0000
From:      zhaghzhagh@openmailbox.org
To:        freebsd-geom@freebsd.org
Subject:   GELI on remotely hosted FreeBSD VM
Message-ID:  <c1fb16ed32ccb40a0bb86d1af322d6eb@openmailbox.org>

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Hello

Wonder if there is any security implication with GELI based full disk 
encryption and FreeBSD running on Xen based VM?

Here are some of my doubts:

1. Could the GELI passphrase revealed by having access to the VM's 
memory snapshot? (At boot time when passphrase is prompted - probably 
yes / during normal operation...)

2. Would it be possible to resume the VM from a snapshot and anyhow 
force it to do a full disk read? (With / without knowing root / any 
other user's credentials.)

...

In general, would like to have a clearer picture about the effectiveness 
of full disk encryption in case of VM hosted at an 'unknown' physical 
location.


Thanks!



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