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Re: [Cfrg] Adopting "AES-GCM-SIV: Nonce Misuse-Resistant Authenticated Encryption" as a CFRG document ---- Some clarifications

"Paterson, Kenny" <Kenny.Paterson@rhul.ac.uk> Wed, 20 April 2016 08:47 UTC

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From: "Paterson, Kenny" <Kenny.Paterson@rhul.ac.uk>
To: Taylor R Campbell <campbell+cfrg@mumble.net>, Fedor Brunner <fedor.brunner@azet.sk>
Thread-Topic: [Cfrg] Adopting "AES-GCM-SIV: Nonce Misuse-Resistant Authenticated Encryption" as a CFRG document ---- Some clarifications
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Date: Wed, 20 Apr 2016 08:37:42 +0000
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Cc: "cfrg@irtf.org" <cfrg@irtf.org>
Subject: Re: [Cfrg] Adopting "AES-GCM-SIV: Nonce Misuse-Resistant Authenticated Encryption" as a CFRG document ---- Some clarifications
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Hi

On 20/04/2016 03:13, "Cfrg on behalf of Taylor R Campbell"
<cfrg-bounces@irtf.org on behalf of campbell+cfrg@mumble.net> wrote:
>
>The creators of AES-GCM-SIV and chairs of the CFRG evidently decided
>that it would be better to sidestep the competition and endorse crypto
>that is, lacking hardware support, either unusably slow or vulnerable
>to timing side channels, recommending it for general-purpose use on
>the internet.

As we said right back at the start, CFRG adopting AES-GCM-SIV does not
preclude us from also adopting other algorithms when they eventually
emerge from the CAESAR process. Indeed, we look forward to that happening.
There's certainly nothing definitive or final about AES-GCM-SIV as far as
we are concerned. 

Moreover, as chairs, we do not "endorse" anything, nor are we deliberately
side-stepping the CAESAR competition. Rather, we have the difficult task
of attempting to balance the interests and needs of some participants in
the group against those of others.

It's fine that you disagree on where we've struck the balance in this
case, but please do understand that these decisions are not black and
white.

Regards,

Kenny

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