Re: Secure deletion

Chris Wedgwood (chris@cybernet.co.nz)
Thu, 23 Jul 1998 14:49:13 +1200


On Wed, Jul 22, 1998 at 06:55:39PM -0700, Jeffrey B. Siegal wrote:

> Does ext2 support secure deletion (freed blocks are overwritten, possibly
> multiple times) rather than just released for reuse? Are there patches
> available to do this?

Not any more. It used to work ages ago, but doesn't appear to now.

If you want to properly delete data from the disk, burn it. Even to do a
moderately good job, its quite a bit of work and doesn't belong in the
kernel.

See http://www.cs.auckland.ac.nz/~pgut001/securedel.html for some general
information on deleting data.

-cw

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