Date: Tue, 19 May 2015 23:47:02 +0200 (CEST)
From: Jiri Kosina <jkosina@suse.cz>
To: David Howells <dhowells@redhat.com>
cc: "Theodore Ts'o" <tytso@mit.edu>, Andy Lutomirski <luto@amacapital.net>,
        Andy Lutomirski <luto@kernel.org>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Michal Marek <mmarek@suse.cz>, David Woodhouse <dwmw2@infradead.org>,
        Abelardo Ricart III <aricart@memnix.com>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Sedat Dilek <sedat.dilek@gmail.com>, keyrings@linux-nfs.org,
        Rusty Russell <rusty@rustcorp.com.au>,
        LSM List <linux-security-module@vger.kernel.org>,
        Borislav Petkov <bp@alien8.de>
Subject: Re: Should we automatically generate a module signing key at all?
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On Tue, 19 May 2015, David Howells wrote:

> That wouldn't very convenient for building our kernels in our build farm 
> - we have a lot of machines and all of them would have to be equiped 
> with the key.  Besides, we *want* to discard the private key where 
> possible as soon as possible because then we can't leak it and we can't 
> be forced to disclose it.

You can still have a dedicated machine that's used just for signing the 
binaries. That machine wouldn't be connected to the network, would be 
physically secured, and would sign through a serial line or so.

-- 
Jiri Kosina
SUSE Labs
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