Re: Where is ext2/3 secure delete ("s") attribute?

From: Alan Cox (alan@lxorguk.ukuu.org.uk)
Date: Thu Nov 21 2002 - 14:20:58 EST


On Thu, 2002-11-21 at 18:39, Kent Borg wrote:
> disk as the original data resided. It seems this has to happen down
> in the file system if there is any hope of it working. And even there
> it could use come help from the disk drive to make sure things can be
> made to happen where they appear to happen.

Very real issue. Your IDE and SCSI disks may randomly leave recoverable
data around if they hit a block that is iffy and mark it bad before it
fails. Flash file systems are very very likely to leave old data around
but fortunately are much smaller and therefore easy to encrypt or blank
wholesale (or indeed blowtorch erase 8))

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