linux-kernel - Re: [GIT PULL] Crypto keys and module signing

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Date:	Fri, 09 Dec 2011 10:18:08 -0800
From:	Arjan van de Ven <arjan@...ux.intel.com>
To:	David Howells <dhowells@...hat.com>
CC:	James Morris <jmorris@...ei.org>,
	linux-security-module@...r.kernel.org, keyrings@...ux-nfs.org,
	linux-kernel@...r.kernel.org, dmitry.kasatkin@...el.com,
	zohar@...ux.vnet.ibm.com, alan@...rguk.ukuu.org.uk
Subject: Re: [GIT PULL] Crypto keys and module signing

On 12/9/2011 10:06 AM, David Howells wrote:
> James Morris <jmorris@...ei.org> wrote:
> 
>> Is there any reason not to sign and verify kernel modules by default?
> 
> If you don't have an entropy source, your build can hang if it's waiting for
> gpg to generate a key.  You need to run rngd to get around this.

... the temp key can use /dev/urandom.
seriously, /dev/urandom for one time, temp keys is not bad
(if you care about the difference, you better provide your own real key)

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