Re: [openpgp] Pull request for AEAD encrypted data packet with GCM

Jon Callas <joncallas@icloud.com> Tue, 14 February 2017 01:32 UTC

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From: Jon Callas <joncallas@icloud.com>
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Date: Mon, 13 Feb 2017 17:32:45 -0800
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To: Stephen Farrell <stephen.farrell@cs.tcd.ie>
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Cc: openpgp@ietf.org, "brian m. carlson" <sandals@crustytoothpaste.net>, Jon Callas <joncallas@icloud.com>
Subject: Re: [openpgp] Pull request for AEAD encrypted data packet with GCM
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> On Feb 13, 2017, at 5:24 PM, Stephen Farrell <stephen.farrell@cs.tcd.ie> wrote:
> 
> A recurring issue with OCB in other contexts has been that it
> it not only Rogaway's IPR that is at issue. Despite (what I
> think is) his very flexible and reasonable way of handling his
> own IPR, and even his efforts to get others to play ball, there
> are multiple other parties involved, not all of whom are IIUC
> equally reasonable (according to my personal view of what's
> reasonable).
> 
> I don't know that that situation has resolved itself favourably
> in any case to date. I'd be happy if it had though, so please
> do follow up this with good news, if such exists.
> 
> This issue was discussed on both the CFRG and TLS lists, maybe
> a year or two ago, so interested folks would benefit from
> checking those archives for OCB related threads.
> 
> Cheers,
> S.
> 
> PS: Note that I'm not stating any opinion pro- or contra- GCM
> nor any other AEAD construct here.

I have no disagreement with this. I am constantly pained that this is a mess, because OCB *is* what we all really want to use.

	Jon