From steveweis@gmail.com Fri Jul 6 02:37:23 2018 From: Steve Weis To: cypherpunks-legacy@lists.cpunks.org Subject: Re: [liberationtech] CryptoParty Handbook Date: Fri, 06 Jul 2018 02:37:23 +0000 Message-ID: <172289276878.3881296.6460208718202572143.generated@mail.pglaf.org> MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="===============3681480711775171595==" --===============3681480711775171595== Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable For what it's worth regarding multiple passes to sanitize data: http://www.infosecisland.com/blogview/16130-The-Urban-Legend-of-Multipass-Har= d-Disk-Overwrite.html http://cs.harvard.edu/malan/publications/pet06.pdf On Thu, Oct 4, 2012 at 5:06 PM, Seth David Schoen wrote: > > I was also concerned by the "Securely Destroying Data" section. Although > it > acknowledges some situations under which erased data (or even overwritten > data) could be recovered, it seems to treat these situations as exceptional > and multiple-overwrite tools generally reliable. It doesn't mention that > these tools are potentially quite untrustworthy on current filesystems even > under normal conditions, because of data journaling. (I first learned > about > this problem from John Gilmore.) In fact, even the man page for shred > gives > a warning about this: > > -- Unsubscribe, change to digest, or change password at: https://mailman.stanfor= d.edu/mailman/listinfo/liberationtech ----- End forwarded message ----- --=20 Eugen* Leitl leitl http://leitl.org ______________________________________________________________ ICBM: 48.07100, 11.36820 http://www.ativel.com http://postbiota.org 8B29F6BE: 099D 78BA 2FD3 B014 B08A 7779 75B0 2443 8B29 F6BE --===============3681480711775171595==--