Re: [Fed-Talk] Filevault question

Subject: Re: [Fed-Talk] Filevault question
From: Shawn Geddis <email@hidden>
Date: Thu, 1 Sep 2005 07:08:14 -0400
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On Aug 11, 2005, at 3:19 PM, Michael Pike wrote:

Quick question:
I am using filevault on my workstation (Dual G5, 4 GB RAM). The workstation is now being used as somewhat of a server as well, so I can no longer power it down when I leave at night.

When I log off, is the filevault safely encrypted and released, or is there anything in memory that might be "viewed" to get my key?

In a nutshell, is it safe to just log off while using filevault, or does the machine have to be shut down and totally cleared for any residual memory to be cleared of encryption key information?


When using FileVault, the mounted volume is unmounted when you log off.

Make sure you have enabled "use secure virtual memory" in the System Preference->Security pane. This will ensure that any swapped content is never exposed to unencrypted space on the drive.

- Shawn
___________________________________________
Shawn Geddis
Security Consulting Engineer
Apple Enterprise Division

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