Bugtraq mailing list archives
Re: *nix data wipe tools
From: "Thomas C. Greene" <thomas.greene () theregister co uk>
Date: Fri, 17 Dec 2004 04:24:24 -0500
BCWipe for *nix is a bit complicated for novices. AFAIK, it does not automatically do swapoff, mkswap & swapon, so some users will either not wipe their swap device (most likely), or will wipe it and fail to get it working again. My humble WipeSwap script -- all eleven lines of it -- will automatically detect the swap device, turn it off, wipe it, re-create it, and turn it back on for you. Because it's easy to use and safe, more users will be encouraged to clean out that rat's nest of data traces now and then. Also, BCWipe can be dangerous in some hands: a simple typo, and there goes a working disk volume. My scripts are separate and clearly labeled. It's impossible to destroy data with the WipeSwap or WipeFree scripts. Only the WipeAll script will do that, and it's disabled by default. Thus, unless you are at least an experienced user, you will have to read the README to get that one working. Furthermore, my scripts (http://basicsec.org/tools.html) are incredibly simple and totally transparent. Almost anyone can understand what they do. You don't have to take my word for *anything*. OTOH, BCWipe uses a more secure wiping routine, they say. But once you've gone from merely deleting to filling with several passes of random data, there is little more to get out of a software solution, except a false sense of security. The next logical level, really, is physical destruction. Still, there is always room for improvement, and several list members have made excellent suggestions for improving the scripts. I'll be posting updated versions in a few weeks' time, as soon as i get them all tested on enough different systems. chrz, t. On Thursday 16 December 2004 15:06, David Cannings wrote:
Is there any specific advantage of these scripts over bcwipe? http://www.jetico.com/index.htm#/bcwipe_unix.htm David
Current thread:
- *nix data wipe tools Thomas C. Greene (Dec 15)
- Re: *nix data wipe tools David Cannings (Dec 16)
- Re: *nix data wipe tools Wietse Venema (Dec 17)
- Re: *nix data wipe tools Casper . Dik (Dec 17)
- Re: *nix data wipe tools Thomas C. Greene (Dec 17)
- Re: *nix data wipe tools George Georgalis (Dec 17)
- Re: *nix data wipe tools Wietse Venema (Dec 17)
- Re: *nix data wipe tools David Cannings (Dec 16)