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Re: [patch #6797] shred option to use internal RNG
From: |
hggdh |
Subject: |
Re: [patch #6797] shred option to use internal RNG |
Date: |
Wed, 1 Apr 2009 10:29:20 -0500 |
On Wed, 01 Apr 2009 17:14:42 +0200
Jim Meyering <address@hidden> wrote:
> Someone asked the same question not long ago.
> here's the thread:
>
> http://thread.gmane.org/gmane.comp.gnu.coreutils.bugs/15581
>
> Quick answer:
>
> How about
>
> --random-source=FILE
>
> where FILE contains a bunch of random data,
> like a chunk from the middle of a well-compressed tarball?
> Or even this:
>
> --random-source=/dev/zero
Indeed this works; nevertheless there are some potential issues:
(1) the "FILE" will have to be a pipe for very large shredded files; so
we are pretty much not really helping, since we are leaving to the user
the task of setting it up. I can see this as an additional option, but
I also feel that we should provide a basic, workable, one;
(2) --random-source=/dev/zero will bypass (1), but will defeat the idea
of a random shredding;
(3) finally -- and more critical, perhaps -- the new default for
--iteractions forces *all* three (default) passes to be random.
I have been trying to figure a way of getting this done with minimal
changes, but have not yet succeeded (well, part of the issue is having
the time to dedicate to it).
Cheers,
..hggdh..
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- Re: [patch #6797] shred option to use internal RNG, Pádraig Brady, 2009/04/01
- Re: [patch #6797] shred option to use internal RNG, Jim Meyering, 2009/04/01
- [patch #6797] shred option to use internal RNG, Jim Meyering, 2009/04/01
- [patch #6797] shred option to use internal RNG, Steven Schveighoffer, 2009/04/01
- [patch #6797] shred option to use internal RNG, Eric Blake, 2009/04/01
- [patch #6797] shred option to use internal RNG, Steven Schveighoffer, 2009/04/01
- Re: [patch #6797] shred option to use internal RNG, Pádraig Brady, 2009/04/02
- Re: [patch #6797] shred option to use internal RNG, Jim Meyering, 2009/04/02
- Re: [patch #6797] shred option to use internal RNG, Steve Schveighoffer, 2009/04/02
- [patch #6797] shred option to use internal RNG, James Youngman, 2009/04/05