[Fed-Talk] Re: Fed-talk Digest, Vol 5, Issue 48
[Fed-Talk] Re: Fed-talk Digest, Vol 5, Issue 48
- Subject: [Fed-Talk] Re: Fed-talk Digest, Vol 5, Issue 48
- From: Daniel Hoit <email@hidden>
- Date: Mon, 25 Feb 2008 09:19:17 -0800
Allan,
from Apple's itpro/federal page:
"Secure Erase (DoD 5220-22-M Compliant)
Secure Erase follows the U.S. Department of Defense standard for the
sanitization of magnetic media in DoD 5220-22-M: National Industrial
Security Program Operating Manual.
Now you can completely erase sensitive files you no longer need. When
you delete a file or folder, Secure Erase Trash makes sure that it no
longer exists. Traditional file deleting simply removes the file name
from the disk directory but leaves the file data in place. Secure
Erase Trash immediately overwrites the file according to the seven-
pass DoD specification."
Srm, secure erase, and disk util all use the same algorithms. 1, 7,
or 35 pass can be configured for each. There is even a hack you can
enable to change which option is used for the Secure Empty Trash
option (not that I recommend it). http://www.macgeekery.com/hacks/
change_10_4_finders_secure_empty_trash_options
If you look at the hack though, you'll see that the Finder is
actually using srm to do the secure erase, so that should answer your
questions.
--DH
On Feb 23, 2008, at 12:04 PM, email@hidden wrote:
There is an option to Secure Empty Trash but that will only
securely delete the files
in the trash at that time. If files were previously deleted, only
the Erase Free Space
option will sanitize the disk. Also, I am trying to find out if the
Secure Empty
Trash conforms to DoD 5220.22-M. The command line program "srm" can
also delete a
specific file, and can use a 7-pass wipe (-m option), but I do not
know if this
command is DoD approved. Anyone know for sure?
Daniel Hoit
System Management Solutions Group
Lawrence Livermore National Laboratory
Email: email@hidden
Phone: 925.424.5256
Pager: 877.402.6321
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