Re: [dane] Use OPENPGPKEY or SMIMEA if both are available?

Patrick Ben Koetter <p@sys4.de> Mon, 09 March 2015 22:16 UTC

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Date: Mon, 09 Mar 2015 23:16:30 +0100
From: Patrick Ben Koetter <p@sys4.de>
To: dane@ietf.org
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References: <20150309195944.GB8242@sys4.de> <alpine.LFD.2.10.1503091601440.29875@bofh.nohats.ca> <20150309212115.GC8242@sys4.de> <20150309220402.GL1260@mournblade.imrryr.org>
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Subject: Re: [dane] Use OPENPGPKEY or SMIMEA if both are available?
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* Viktor Dukhovni <dane@ietf.org>:
> On Mon, Mar 09, 2015 at 10:21:15PM +0100, Patrick Ben Koetter wrote:
> 
> > Both, OPENPGPKEY and SMIMEA, carry the potential to increase wider usage of
> > encryption. They offer a safe way for automated key distribution. All a sender
> > will have to do is 'send' the message. Given appropriate software, MUA or MTA,
> > will handle safe key retrieval and encrypt the message for any OPENPGPKEY and
> > SMIMEA enabled recipient.
> 
> Pick whichever is also supported by the sender (for which the sender
> also has a key).  If the sender has a key for both, I would have
> historically gone with SMIME since more desktop clients support that.

ACK


> However, things are changing, because smartphones have a new breed
> of email clients, and I'm not sure which is more prevalent on iOS
> and Android phones.  Also even if SMIME is more widely understood,
> it is prone to raise warnings with self-signed or private CA issued
> keys.  And we want to avoid such warnings.
> 
> So it is not yet clear which is to be preferred, in practice we
> should be so lucky as to have to choose.  Most users have no keys
> of either type.

Are you saying I am worrying about a problem we don't have (yet)?

p@rick


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