On Mon, 6 May 2002, Toal, Dave wrote:
>
>
>
> if=/dev/urandom, is what I'd use. But I've read that
> traces of the original magnetic domains can be recovered after
> being over-written. Maybe alternate if=/dev/zero with the file
> writes from /dev/random, and repeat the process a few times?
>
Thats exactly what most of those handy secure delete utilities
for other operating systems do, with 13 passes (alternated zeros
and randoms) being considered "secure".
However, ive also read (and heard anecdotal stories) about various
types of forensic software being capable of reading magnetic
signatures on very deep levels. However, these anecdotes always
include the caveat that this sort of thing works best on unencrypted
ascii files, and everything else only marginally well.
Jim
---
Send mail for the `bblisa' mailing list to `[EMAIL PROTECTED]'.
Mail administrative requests to `[EMAIL PROTECTED]'.
