Peter Eckersley <[EMAIL PROTECTED]> writes: > We might choose 2, because of the 1% chance of recovery cited by one of > the recovery firms in that paper. > > Or 3, because we're paranoid.
DoD 5220 specifies 3, in a certain way, so perhaps that should be the default. But that's a pretty old standard; time has marched on. CMRR claims that the ATA SECURITY ERASE UNIT command is just as secure, and is a lot, lot faster. And NIST 800-88 <http://csrc.nist.gov/publications/nistpubs/800-88/NISTSP800-88_rev1.pdf> page 8 says "Studies have shown that most of today's media can be effectively cleared by one overwrite." I view that as a more reliable than an offhand unsourced claim by one recovery firm out of many, which is why I suggested defaulting to one overwrite. _______________________________________________ Bug-coreutils mailing list [email protected] http://lists.gnu.org/mailman/listinfo/bug-coreutils
