linux-kernel - Re: Linux 3.0.7 now on kernel.org

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Message-ID: <y0mmxcrx046.fsf@fche.csb>
Date:	Sun, 23 Oct 2011 10:18:17 -0400
From:	fche@...hat.com (Frank Ch. Eigler)
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	Greg KH <greg@...ah.com>, Piotr Hosowicz <piotr@...owicz.com>,
	linux-kernel@...r.kernel.org, John Hawley <warthog19@...il.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: Linux 3.0.7 now on kernel.org

"H. Peter Anvin" <hpa@...or.com> writes:

> [...]
> Signing the compressed file makes the compression "precious".  It also
> means that the developer has to sign each.
>
> It's not significantly "more handy" either... you can do something like:
> 	xz -cd file.xz | gpg --verify file.sign -

On the other hand, it forces someone to decompress an untrustworthy
file in order to check its signature.  Should there ever be a security
exploit in any of these decompressors, this practice would aid
triggering it.

- FChE
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