Re: [openpgp] SHA3 algorithm ids.

ianG <iang@iang.org> Fri, 14 August 2015 19:08 UTC

Return-Path: <iang@iang.org>
X-Original-To: openpgp@ietfa.amsl.com
Delivered-To: openpgp@ietfa.amsl.com
Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 06E1B1A6F5D for <openpgp@ietfa.amsl.com>; Fri, 14 Aug 2015 12:08:26 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -0.5
X-Spam-Level:
X-Spam-Status: No, score=-0.5 tagged_above=-999 required=5 tests=[BAYES_05=-0.5] autolearn=ham
Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 66sevY_Aawma for <openpgp@ietfa.amsl.com>; Fri, 14 Aug 2015 12:08:24 -0700 (PDT)
Received: from virulha.pair.com (virulha.pair.com [209.68.5.166]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 127CD1A7009 for <openpgp@ietf.org>; Fri, 14 Aug 2015 12:07:45 -0700 (PDT)
Received: from tormenta.local (iang.org [209.197.106.187]) by virulha.pair.com (Postfix) with ESMTPSA id 9CC2D6D78A; Fri, 14 Aug 2015 15:07:43 -0400 (EDT)
Message-ID: <55CE3C86.2080909@iang.org>
Date: Fri, 14 Aug 2015 20:07:50 +0100
From: ianG <iang@iang.org>
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:31.0) Gecko/20100101 Thunderbird/31.7.0
MIME-Version: 1.0
To: openpgp@ietf.org
References: <87y4hmi19i.fsf@vigenere.g10code.de> <7540C7A9-2830-4A63-8310-B684796DA279@nohats.ca> <55C681FC.9010100@iang.org> <sjma8tztbgo.fsf@securerf.ihtfp.org> <CAMm+Lwj7SxXTn+KD-eQSeZHwJB36tCgD1t0bodVsp3ovOaZ8mw@mail.gmail.com> <9A043F3CF02CD34C8E74AC1594475C73F4AD7C72@uxcn10-5.UoA.auckland.ac.nz> <CAMm+LwifPNxyj1LLA-k+8K=mmEztS42E2kcEfGFObPc0R2xvMQ@mail.gmail.com> <sjm7fp0sh6z.fsf@securerf.ihtfp.org> <CAMm+LwhHeaEYT2xZ8=3j7bhF6TeLPFUddek7C3_Z3-fYNUaeoA@mail.gmail.com> <sjmmvxvqpoj.fsf@securerf.ihtfp.org>
In-Reply-To: <sjmmvxvqpoj.fsf@securerf.ihtfp.org>
Content-Type: text/plain; charset=utf-8; format=flowed
Content-Transfer-Encoding: 7bit
Archived-At: <http://mailarchive.ietf.org/arch/msg/openpgp/Upr_D15ITU3pia9XZr0XcX15zxc>
Subject: Re: [openpgp] SHA3 algorithm ids.
X-BeenThere: openpgp@ietf.org
X-Mailman-Version: 2.1.15
Precedence: list
List-Id: "Ongoing discussion of OpenPGP issues." <openpgp.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/openpgp>, <mailto:openpgp-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/openpgp/>
List-Post: <mailto:openpgp@ietf.org>
List-Help: <mailto:openpgp-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/openpgp>, <mailto:openpgp-request@ietf.org?subject=subscribe>
X-List-Received-Date: Fri, 14 Aug 2015 19:08:26 -0000

On 13/08/2015 14:32 pm, Derek Atkins wrote:
> Phillip Hallam-Baker <phill@hallambaker.com>; writes:
>
>>      So let's not assume that these low-end processors are going away, please?
>>
>> Well the constraint on processing is easing up due to the move from RSA to ECC.
>
> Sure, it reduces computation time from tens of seconds down to ones of
> seconds.  ;)
>
>> And for the amount of data going though one of these processors, the choice of
>> AES or DES doesn't make much of a difference. These things don't have to
>> communicate very fast.
>>
>> The thing that gets really uncomfortable is dealing with the amount of memory
>> available. Quite a few of the embedded chips have even less RAM than the
>> Commodore PET I started with when 32KB was the large machine.
>
> Oh, yeah.  Some of the environments I work in have like 2-4KB of RAM!


https://www.youtube.com/watch?v=Xe1a1wHxTyo

"And you try and tell the young people today..."

:)



>> Yes, these chips are not going away any time soon. The number of chips being
>> made with 6502 based cores has increased every year since the 80s. But the
>> problem with the chips isn't just that they are slow.
>
> I'm not seeing 6502, but I am seeing a lot of 8051.
>
> -derek
>