Your browser does not seem to support CSS. If images appear below, please disregard them.
It appears that you're running an Ad-Blocker. This site is monetized by Advertising and by User Donations; we ask that if you find this site helpful that you whitelist us in your Ad-Blocker, or make a Donation to help aid in operating costs.
Previous Thread
Next Thread
Print Thread
Rate This Thread
#841 - 06/18/04 07:06 AM Anyone who ever wiped thier hard drive  
Joined: Dec 2002
Posts: 3,255
§intå× Offline
§intå×  Offline


Joined: Dec 2002
Posts: 3,255
Likes: 1
Maryland
Ever wonder who the hell Peter Gutmann(35 passes) is. Here is his paper which made that standard. BTW this is no longer needed or dosen't work as well. Drives do not store data this way any more.

http://www.cs.auckland.ac.nz/~pgut001/pubs/secure_del.html

Sponsored Links
#842 - 06/18/04 08:47 AM Re: Anyone who ever wiped thier hard drive  
Joined: Dec 2002
Posts: 3,255
§intå× Offline
§intå×  Offline


Joined: Dec 2002
Posts: 3,255
Likes: 1
Maryland
Peter Gutmann's Epilogue some time after 1996 and before 2002

Quote:

In the time since this paper was published, some people have treated
the 35-pass overwrite technique described in it more as a kind of voodoo
incantation to banish evil spirits than the result of a technical
analysis of drive encoding techniques. As a result, they advocate
applying the voodoo to PRML and EPRML drives even though it will have no
more effect than a simple scrubbing with random data. In fact performing
the full 35-pass overwrite is pointless for any drive since it targets a
blend of scenarios involving all types of (normally-used) encoding
technology, which covers everything back to 30+-year-old MFM methods (if
you don't understand that statement, re-read the paper). If you're using
a drive which uses encoding technology X, you only need to perform the
passes specific to X, and you never need to perform all 35 passes. For
any modern PRML/EPRML drive, a few passes of random scrubbing is the best
you can do. As the paper says, "A good scrubbing with random data will do
about as well as can be expected". This was true in 1996, and is still
true now.
Dose anyone understand all of this. I am missing bits. Some of it is over my head.

#843 - 06/18/04 08:49 AM Re: Anyone who ever wiped thier hard drive  
Joined: Feb 2002
Posts: 7,195
Gremelin Offline
Community Owner
Gremelin  Offline

Community Owner

Joined: Feb 2002
Posts: 7,195
Likes: 3
Portland, OR; USA
'eh Jetico has a program called BestCrypt which does random writes of data and purges it; i've used it for years and doubt i'd use anything else.


Donate to UGN Security here.
UGN Security, Back of the Web, and VNC Web Services Owner
#844 - 06/19/04 08:42 PM Re: Anyone who ever wiped thier hard drive  
Joined: Dec 2002
Posts: 3,255
§intå× Offline
§intå×  Offline


Joined: Dec 2002
Posts: 3,255
Likes: 1
Maryland
BestCrypt wipes? I have used Bcwipe from them. Pretty nice. I have not been able to recover what I wiped. I have looked a BestCrypt but thought it was just to encrypt your hd.

#845 - 06/19/04 09:48 PM Re: Anyone who ever wiped thier hard drive  
Joined: Feb 2002
Posts: 7,195
Gremelin Offline
Community Owner
Gremelin  Offline

Community Owner

Joined: Feb 2002
Posts: 7,195
Likes: 3
Portland, OR; USA
BCWipe used to come with BestCrypt. BestCrypt also doesn't encrypt your hard drive; it makes an encrypted container which acts like a virtual drive that's encrypted; it's really cool if you get a chance to play with it...


Donate to UGN Security here.
UGN Security, Back of the Web, and VNC Web Services Owner
Sponsored Links

Member Spotlight
Gremelin
Gremelin
Portland, OR; USA
Posts: 7,195
Joined: February 2002
Show All Member Profiles 
Forum Statistics
Forums45
Topics47,469
Posts82,639
Average Daily Posts8
Members2,159
Most Online1,567
Apr 25th, 2010
Latest Postings
Top Posters(All Time)
UGN Security 40,633
Gremelin 7,195
§intå× 3,255
SilentRage 1,273
Ice 1,146
pergesu 1,136
Infinite 1,041
jonconley 955
Girlie 908
unreal 860
Top Liked Users (All Time)
§intå× Likes: 1
Cold Sunn Likes: 1
Crime Likes: 1
Cyrez Likes: 1
Ghost Likes: 1
Gremelin Likes: 4
Ice Likes: 1
unreal Likes: 1
Top Liked Users (30 Days)
No Data Found
Powered by UBB.threads™ PHP Forum Software 7.6.0
(Snapshot build 20160902)