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From: "H. Peter Anvin" <hpa@zytor.com>
To: Kyle Moffett <kyle@moffetthome.net>
Cc: Greg KH <greg@kroah.com>,
	Jari Ruusu <jariruusu@users.sourceforge.net>,
	linux-kernel@vger.kernel.org
Subject: Re: kernel.org tarball/patch signature files
Date: Tue, 25 Oct 2011 10:27:05 +0200	[thread overview]
Message-ID: <4EA672D9.106@zytor.com> (raw)
In-Reply-To: <CAGZ=bqKvb96VvZ5a+VJWZXKdr553n8SW2=JOLZS1fGY5KE7iZg@mail.gmail.com>

On 10/25/2011 06:31 AM, Kyle Moffett wrote:
> 
> Unfortunately, while there are "pristine-gz" and "pristine-bz2" tools,
> there has not yet been developed a "pristine-xz" tool:
>   http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=499489
> 
> So it's not yet reasonably possible for the kernel.org archive, but
> sometime in the future it might become so.
> 

There are a lot of strong reasons to NOT do so, however.

Any time we have something signed by a developer, we have something that
is precious and cannot be replicated by kernel.org staff.

Any time we have something signed by a robot, we have something that
people *will* misinterpret as having security properties that they don't
-- this has unfortunately been amply shown.

Compression formats evolve over time; right now we're concerned with gz,
bz2, and xz, but xz is brand new here and there may very well be new
things in the future.

It would be a very good thing for people to develop tools to run
compressors and decompressors in locked-down boxes.  It should be
possible to run these kinds of programs without access to either network
or filesystem; only read from stdin and out on stdout (and presumably
stderr for errors.)  This would solve problems for much more than just
kernel.org.

	-hpa


  reply	other threads:[~2011-10-25  8:27 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-10-23 11:17 kernel.org tarball/patch signature files Jari Ruusu
2011-10-23 11:37 ` Greg KH
2011-10-23 14:07   ` Jari Ruusu
2011-10-25  1:49     ` Greg KH
2011-10-25  4:31       ` Kyle Moffett
2011-10-25  8:27         ` H. Peter Anvin [this message]
2011-10-25  9:13           ` Valdis.Kletnieks
2011-10-25  9:32             ` H. Peter Anvin
2011-10-25  6:06       ` Jari Ruusu
2011-10-25  7:09         ` Greg KH
2011-10-25  8:09           ` Jari Ruusu
2011-10-25  7:28       ` Valdis.Kletnieks
2011-10-25  7:34         ` Greg KH
2011-10-24 17:18   ` Valdis.Kletnieks

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