Re: [openpgp] Deprecating compression support

Marcus Brinkmann <marcus.brinkmann@ruhr-uni-bochum.de> Thu, 21 March 2019 00:09 UTC

Return-Path: <marcus.brinkmann@ruhr-uni-bochum.de>
X-Original-To: openpgp@ietfa.amsl.com
Delivered-To: openpgp@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 1E54D1274D0 for <openpgp@ietfa.amsl.com>; Wed, 20 Mar 2019 17:09:46 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -4.3
X-Spam-Level:
X-Spam-Status: No, score=-4.3 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_MED=-2.3, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=ruhr-uni-bochum.de
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 knzM8tOIqbUR for <openpgp@ietfa.amsl.com>; Wed, 20 Mar 2019 17:09:43 -0700 (PDT)
Received: from out3.mail.ruhr-uni-bochum.de (out3.mail.ruhr-uni-bochum.de [134.147.53.155]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id D9FD6124B91 for <openpgp@ietf.org>; Wed, 20 Mar 2019 17:09:42 -0700 (PDT)
Received: from mx3.mail.ruhr-uni-bochum.de (localhost [127.0.0.1]) by out3.mail.ruhr-uni-bochum.de (Postfix mo-ext) with ESMTP id 44PnGW0FYmz8S5v for <openpgp@ietf.org>; Thu, 21 Mar 2019 01:09:39 +0100 (CET)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ruhr-uni-bochum.de; s=mail-2017; t=1553126979; bh=S3YbRH0WvERTxHw0r2MzzXLk8UaAbVgi1+ZexjlhF/U=; h=Subject:To:References:From:Date:In-Reply-To:From; b=qyrrDfE8Z1yj1q3NeCg1+PYFQbzuDFtLGMAwzyMkrBJp8DTdb6yCENRadlB8kmCdc pCLN9JbSCKqmfcV/dnn4VqYC2nZAa8THG18MwIZ9ZkWZzCKsRGVxAwC4g3JLe6B3wO 0nRzdS1mKl2Ka8+mr/KpZxUdQBe42ikM/mgPkpew=
Received: from out3.mail.ruhr-uni-bochum.de (localhost [127.0.0.1]) by mx3.mail.ruhr-uni-bochum.de (Postfix idis) with ESMTP id 44PnGV5sSCz8S5r for <openpgp@ietf.org>; Thu, 21 Mar 2019 01:09:38 +0100 (CET)
X-Envelope-Sender: <marcus.brinkmann@ruhr-uni-bochum.de>
X-RUB-Notes: Internal origin=134.147.42.227
Received: from mail1.mail.ruhr-uni-bochum.de (mail1.mail.ruhr-uni-bochum.de [134.147.42.227]) by out3.mail.ruhr-uni-bochum.de (Postfix mi-int) with ESMTP id 44PnGV5ggzz8S5X for <openpgp@ietf.org>; Thu, 21 Mar 2019 01:09:38 +0100 (CET)
Received: from [192.168.142.139] (p4FE3F022.dip0.t-ipconnect.de [79.227.240.34]) by mail1.mail.ruhr-uni-bochum.de (Postfix) with ESMTPSA id 44PnGW0qnXzyqL for <openpgp@ietf.org>; Thu, 21 Mar 2019 01:09:39 +0100 (CET)
To: openpgp@ietf.org
References: <2301148.obROdnegVN@esus> <871s3475dy.fsf@europa.jade-hamburg.de> <32M8VBNV00C3O.2R23SQ96PJPG3@my.amazin.horse> <2020697.uNjeE9oTgC@esus>
From: Marcus Brinkmann <marcus.brinkmann@ruhr-uni-bochum.de>
Openpgp: preference=signencrypt
Message-ID: <2ab499b1-01cb-2738-7ae7-52011747c9ac@ruhr-uni-bochum.de>
Date: Thu, 21 Mar 2019 01:09:39 +0100
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.5.1
MIME-Version: 1.0
In-Reply-To: <2020697.uNjeE9oTgC@esus>
Content-Type: text/plain; charset=windows-1252
Content-Language: en-US
Content-Transfer-Encoding: 8bit
X-Virus-Scanned: clamav-milter 0.99.4 at mail1.mail.ruhr-uni-bochum.de
X-Virus-Status: Clean
Archived-At: <https://mailarchive.ietf.org/arch/msg/openpgp/4_69U0o1ZYxWgb797_A2TJ3V8u8>
Subject: Re: [openpgp] Deprecating compression support
X-BeenThere: openpgp@ietf.org
X-Mailman-Version: 2.1.29
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: Thu, 21 Mar 2019 00:09:46 -0000

Hi Andre,

isn't gpgtar (which I assume is still used by Kleopatra on Windows to
encrypt folders) also "unstandardized" by OpenPGP?  For all practical
purposes, compressed archive formats are well-established across all
platforms, so it's unclear to me what kind of problems you fear.

Thanks,
Marcus

On 3/20/19 2:17 PM, Andre Heinecke wrote:
> On Wednesday 20 March 2019 14:14:49 CET Vincent Breitmoser wrote:
>> Is your point that you would want to keep compression as a feature in those
>> applications, hence removing it from OpenPGP would mean you'd have to keep 
> it
>> around unstandardized / on a different layer?
> 
> Exactly. The User Experience of Kleopatra on Windows is that you right click a 
> folder and encrypt that folder. You need compression there.
> Currently it is standardized. You propose to remove the standard so it will be 
> unstandartized and no longer interoperable.
> 
> Regards,
> Andre
> 
> 
> _______________________________________________
> openpgp mailing list
> openpgp@ietf.org
> https://www.ietf.org/mailman/listinfo/openpgp
> 

-- 
Dipl.-Math. Marcus Brinkmann

Lehrstuhl für Netz- und Datensicherheit
Ruhr Universität Bochum
Universitätsstr. 150, Geb. ID 2/461
D-44780 Bochum

Telefon: +49 (0) 234 / 32-25030
http://www.nds.rub.de/chair/people/mbrinkmann