linux-kernel - Re: RFC: sign the modules at install time

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Message-ID: <874nlso0in.fsf@rustcorp.com.au>
Date:	Thu, 18 Oct 2012 15:11:04 +1030
From:	Rusty Russell <rusty@...tcorp.com.au>
To:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Josh Boyer <jwboyer@...il.com>
Cc:	David Miller <davem@...emloft.net>,
	David Howells <dhowells@...hat.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: RFC: sign the modules at install time

Linus Torvalds <torvalds@...ux-foundation.org> writes:
>    Ta-daa, you have your debuginfo modules installed, and they are
> signed. Create the debuginfo rpm.
>
>  - now, strip the modules. This obviously destroys the signatures

Note this doesn't remove them.  You'll need something like:

 dd if=$k of=$k.nosig bs=$(grep -cba $k '~Module signature appended~' | cut -d: -f1) count=1 && mv $k.nosig $k

Cheers,
Rusty.
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