Pádraig Brady <p...@draigbrady.com> wrote: > Jim Meyering wrote: >> Paul Eggert <egg...@cs.ucla.edu> wrote: >>> Jim Meyering <j...@meyering.net> writes: >>> >>>> I too would feel better with a minimum of 2 or 3 passes, just in case. >>> If we want to be conservative, then the U.S. Defense Security >>> Service's Clearing and Sanitization Matrix (2005-06-27) >>> <http://www.dss.mil/isp/odaa/documents/clearing_and_sanitization_matrix.pdf> >>> specifies the following methods for rigid disk: >>> >>> * For clearing, "Overwrite all addressable locations with a single >>> character." >>> >>> * For sanitization, "Overwrite all addressable locations with a >>> character, then its complement. Verify 'complement' character was >>> written successfully to all addressable locations, then overwrite ... > I noticed a couple of blog posts lately that reminded me of this. > > http://www.g-loaded.eu/2009/01/22/effective-data-wiping-with-a-single-complete-overwrite/ > http://www.ioncannon.net/system-administration/272/using-scrub-to-destroy-a-hard-drive/ > > Should be just change DEFAULT_PASSES to 3 now, and do the more complicated > process above when someone gets time?
Sure. Too many people waste too much time with the existing defaults. _______________________________________________ Bug-coreutils mailing list Bug-coreutils@gnu.org http://lists.gnu.org/mailman/listinfo/bug-coreutils
