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

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Message-ID: <4EE26486.8090904@fifthhorseman.net>
Date:	Fri, 09 Dec 2011 14:41:58 -0500
From:	Daniel Kahn Gillmor <dkg@...thhorseman.net>
To:	David Howells <dhowells@...hat.com>
CC:	Arjan van de Ven <arjan@...ux.intel.com>, keyrings@...ux-nfs.org,
	linux-kernel@...r.kernel.org,
	linux-security-module@...r.kernel.org, dmitry.kasatkin@...el.com,
	alan@...rguk.ukuu.org.uk
Subject: Re: [Keyrings] [GIT PULL] Crypto keys and module signing

On 12/09/2011 01:47 PM, David Howells wrote:
> Arjan van de Ven <arjan@...ux.intel.com> wrote:
> 
>> ... 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)
> 
> Can you tell gpg which random device to use?

Depending on the version of gpg, supplying either --quick-random or
--debug-quick-random should use a cheaper PRNG.

I think this is an undocumented feature, though.

hth,

	--dkg


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