IETF Logo Mail Archive

Re: [openpgp] Deprecating compression support

"Neal H. Walfield" <neal@walfield.org> Wed, 27 March 2019 10:46 UTC

Return-Path: <neal@walfield.org>
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 620AC120476 for <openpgp@ietfa.amsl.com>; Wed, 27 Mar 2019 03:46:07 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.899
X-Spam-Level:
X-Spam-Status: No, score=-1.899 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_NONE=-0.0001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no
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 ZwajPrr567Vh for <openpgp@ietfa.amsl.com>; Wed, 27 Mar 2019 03:46:05 -0700 (PDT)
Received: from mail.dasr.de (mail.dasr.de [217.69.77.164]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id B3F9A1202BF for <openpgp@ietf.org>; Wed, 27 Mar 2019 03:46:04 -0700 (PDT)
Received: from p57b22663.dip0.t-ipconnect.de ([87.178.38.99] helo=grit.huenfield.org.walfield.org) by mail.dasr.de with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.86_2) (envelope-from <neal@walfield.org>) id 1h964I-0002Tm-5Z; Wed, 27 Mar 2019 10:46:02 +0000
Date: Wed, 27 Mar 2019 11:46:01 +0100
Message-ID: <87o95wh9xy.wl-neal@walfield.org>
From: "Neal H. Walfield" <neal@walfield.org>
To: Andre Heinecke <aheinecke@gnupg.org>
Cc: openpgp@ietf.org, Justus Winter <justuswinter@gmail.com>, Vincent Breitmoser <look@my.amazin.horse>
In-Reply-To: <2020697.uNjeE9oTgC@esus>
References: <2301148.obROdnegVN@esus> <871s3475dy.fsf@europa.jade-hamburg.de> <32M8VBNV00C3O.2R23SQ96PJPG3@my.amazin.horse> <2020697.uNjeE9oTgC@esus>
User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI-EPG/1.14.7 (Harue) FLIM/1.14.9 (Gojō) APEL/10.8 EasyPG/1.0.0 Emacs/24.5 (x86_64-pc-linux-gnu) MULE/6.0 (HANACHIRUSATO)
MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue")
Content-Type: text/plain; charset="US-ASCII"
Archived-At: <https://mailarchive.ietf.org/arch/msg/openpgp/HsdP5rLE6VH6YiBil7vWyWQkeCA>
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: Wed, 27 Mar 2019 10:46:16 -0000

Hi Andre,

On Wed, 20 Mar 2019 14:17:53 +0100,
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.

You talk about encrypting a folder.  So I assume you mean multiple
files.  As far as I know, 4880 doesn't support this out of the box.
For instance, an OpenPGP message can only have one literal data
packet:

  https://tools.ietf.org/html/rfc4880#section-11.3

Are you using some container format?  PGP/Mime with multiple
attachments?  Something else?

Thanks,

Neal

v2.23.0 | Report a Bug | By Email