linux-kernel - Re: [PATCH v2] modsign: use shred to overwrite the private key before deleting it

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Message-ID: <54C3901D.8040406@ahsoftware.de>
Date:	Sat, 24 Jan 2015 13:29:17 +0100
From:	Alexander Holler <holler@...oftware.de>
To:	linux-kernel@...r.kernel.org
CC:	linux-kbuild@...r.kernel.org, Michal Marek <mmarek@...e.cz>,
	David Howells <dhowells@...hat.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [PATCH v2] modsign: use shred to overwrite the private key before
 deleting it

Am 24.01.2015 um 13:09 schrieb Alexander Holler:
> Am 24.01.2015 um 12:37 schrieb Alexander Holler:
>> Am 24.01.2015 um 11:45 schrieb Alexander Holler:
>>
>>> It uses shred, in the hope it will somedays learn how to shred stuff on
>>> FLASH based devices securely too, once that has become possible.
>>
>> BTW: This is a good example where technology failed to keep the needs of
>> users in mind.
>
> Failed completely.
>
> Since ever it's a problem for people to securely delete files on storage.
>
> Also it should be very simple to securely erase files on block based
> devices, people have to try cruel ways in the hope to get securely rid
> of files nobody else should be able to see ever again.
>
> It's almost unbelievable how completely the IT industry (including the
> field I'm working myself: SW) failed in regard to that since 30 years or
> even more.

And it isn't such that this is a new requirement. Humans are doing such 
since thousands of years. They use fire to get rid of paper documents 
and even the old egypts were able to destroyed stuff on stones by using 
simple steps. Just the IT failed completely.

Really unbelievable.

So, sorry if anyone got bored by this mail, but I think that really has 
to be said and repeated.

Regards,

Alexander Holler
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