Re: [openpgp] AEAD Chunk Size
"Neal H. Walfield" <neal@walfield.org> Tue, 19 March 2019 10:09 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 4243013121C for <openpgp@ietfa.amsl.com>; Tue, 19 Mar 2019 03:09:55 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.9
X-Spam-Level:
X-Spam-Status: No, score=-1.9 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_NONE=-0.0001] 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 txn-Yd6Nu0sX for <openpgp@ietfa.amsl.com>; Tue, 19 Mar 2019 03:09:53 -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 CBB3212716C for <openpgp@ietf.org>; Tue, 19 Mar 2019 03:09:52 -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 1h6Bgr-0008JH-Sf; Tue, 19 Mar 2019 10:09:49 +0000
Date: Tue, 19 Mar 2019 11:09:49 +0100
Message-ID: <87a7hri39u.wl-neal@walfield.org>
From: "Neal H. Walfield" <neal@walfield.org>
To: "Neal H. Walfield" <neal@walfield.org>, Bill Frantz <frantz@pwpconsult.com>, openpgp@ietf.org
In-Reply-To: <87k1gv41zj.fsf@wheatstone.g10code.de>
References: <r480Ps-10143i-149CE78B9B3A43A29B3D767B6660A08D@Williams-MacBook-Pro.local> <87r2b348z5.fsf@wheatstone.g10code.de> <87ftrji7sr.wl-neal@walfield.org> <87k1gv41zj.fsf@wheatstone.g10code.de>
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/zey2kVDNIniIxQNdfpoFXCVz4cU>
Subject: Re: [openpgp] AEAD Chunk Size
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: Tue, 19 Mar 2019 10:09:55 -0000
On Tue, 19 Mar 2019 11:01:20 +0100, Werner Koch wrote: > > I agree with you that AEAD + signed chunks is even better. But, > > streaming AEAD still provides a significant improvement relative to > > the status quo: it protects against EFAIL-style exfiltration attacks. > > Neal: Please stop spreading false information. Our MDC already protects > against this (old) kind of attack. We implemented the new AE algorithms > merely for cryptographic cleanness and speed. Thanks, I guess I've misunderstood the issue. Can you please explain how the MDC helps protect against ciphertext modification in the streaming case, as that it still not clear to me. Thanks! :) Neal
- Re: [openpgp] AEAD Chunk Size Justus Winter
- [openpgp] AEAD Chunk Size Neal H. Walfield
- Re: [openpgp] AEAD Chunk Size Vincent Breitmoser
- Re: [openpgp] AEAD Chunk Size Bart Butler
- Re: [openpgp] AEAD Chunk Size Jon Callas
- Re: [openpgp] AEAD Chunk Size Bart Butler
- Re: [openpgp] AEAD Chunk Size Jon Callas
- Re: [openpgp] AEAD Chunk Size Ronald Tse
- Re: [openpgp] AEAD Chunk Size Ronald Tse
- Re: [openpgp] AEAD Chunk Size Bart Butler
- Re: [openpgp] AEAD Chunk Size Hanno Böck
- Re: [openpgp] AEAD Chunk Size - Performance Neal H. Walfield
- Re: [openpgp] AEAD Chunk Size Neal H. Walfield
- Re: [openpgp] AEAD Chunk Size Neal H. Walfield
- Re: [openpgp] AEAD Chunk Size Neal H. Walfield
- Re: [openpgp] AEAD Chunk Size Neal H. Walfield
- Re: [openpgp] AEAD Chunk Size Jon Callas
- Re: [openpgp] AEAD Chunk Size - Performance Bart Butler
- Re: [openpgp] AEAD Chunk Size Bart Butler
- Re: [openpgp] AEAD Chunk Size Bart Butler
- Re: [openpgp] AEAD Chunk Size brian m. carlson
- Re: [openpgp] AEAD Chunk Size Neal H. Walfield
- Re: [openpgp] AEAD Chunk Size - Performance Neal H. Walfield
- Re: [openpgp] AEAD Chunk Size Neal H. Walfield
- Re: [openpgp] AEAD Chunk Size Tobias Mueller
- Re: [openpgp] AEAD Chunk Size Sebastian Schinzel
- Re: [openpgp] AEAD Chunk Size Neal H. Walfield
- Re: [openpgp] AEAD Chunk Size Neal H. Walfield
- Re: [openpgp] AEAD Chunk Size Werner Koch
- Re: [openpgp] AEAD Chunk Size Vincent Breitmoser
- Re: [openpgp] AEAD Chunk Size Sebastian Schinzel
- Re: [openpgp] AEAD Chunk Size Derek Atkins
- Re: [openpgp] AEAD Chunk Size Neal H. Walfield
- Re: [openpgp] AEAD Chunk Size Derek Atkins
- Re: [openpgp] AEAD Chunk Size Neal H. Walfield
- Re: [openpgp] AEAD Chunk Size Werner Koch
- Re: [openpgp] AEAD Chunk Size Derek Atkins
- Re: [openpgp] AEAD Chunk Size Neal H. Walfield
- Re: [openpgp] AEAD Chunk Size Neal H. Walfield
- Re: [openpgp] AEAD Chunk Size Tobias Mueller
- Re: [openpgp] AEAD Chunk Size Tobias Mueller
- Re: [openpgp] AEAD Chunk Size Tobias Mueller
- Re: [openpgp] AEAD Chunk Size Tobias Mueller
- Re: [openpgp] AEAD Chunk Size Tobias Mueller
- Re: [openpgp] AEAD Chunk Size Werner Koch
- Re: [openpgp] AEAD Chunk Size Neal H. Walfield
- Re: [openpgp] AEAD Chunk Size Neal H. Walfield
- Re: [openpgp] AEAD Chunk Size Tobias Mueller
- Re: [openpgp] AEAD Chunk Size Tobias Mueller
- Re: [openpgp] AEAD Chunk Size Neal H. Walfield
- Re: [openpgp] AEAD Chunk Size Vincent Breitmoser
- Re: [openpgp] AEAD Chunk Size Peter Pentchev
- Re: [openpgp] AEAD Chunk Size Vincent Breitmoser
- Re: [openpgp] AEAD Chunk Size Neal H. Walfield
- Re: [openpgp] AEAD Chunk Size Derek Atkins
- Re: [openpgp] AEAD Chunk Size Vincent Breitmoser
- Re: [openpgp] AEAD Chunk Size Neal H. Walfield
- Re: [openpgp] AEAD Chunk Size Vincent Breitmoser
- Re: [openpgp] AEAD Chunk Size Tobias Mueller
- Re: [openpgp] AEAD Chunk Size Neal H. Walfield
- Re: [openpgp] AEAD Chunk Size Bill Frantz
- [openpgp] WTF (Re: AEAD Chunk Size) Andre Heinecke
- Re: [openpgp] AEAD Chunk Size Werner Koch
- Re: [openpgp] AEAD Chunk Size Neal H. Walfield
- Re: [openpgp] AEAD Chunk Size Werner Koch
- Re: [openpgp] AEAD Chunk Size Neal H. Walfield
- Re: [openpgp] AEAD Chunk Size Derek Atkins
- Re: [openpgp] AEAD Chunk Size Neal H. Walfield
- Re: [openpgp] AEAD Chunk Size Marcus Brinkmann
- Re: [openpgp] AEAD Chunk Size Nickolay Olshevsky
- Re: [openpgp] AEAD Chunk Size Derek Atkins
- Re: [openpgp] AEAD Chunk Size Tobias Mueller
- Re: [openpgp] AEAD Chunk Size Tobias Mueller
- Re: [openpgp] AEAD Chunk Size Derek Atkins
- Re: [openpgp] AEAD Chunk Size Neal H. Walfield
- Re: [openpgp] AEAD Chunk Size Bill Frantz
- Re: [openpgp] AEAD Chunk Size Jon Callas
- Re: [openpgp] AEAD Chunk Size Jon Callas
- Re: [openpgp] AEAD Chunk Size Neal H. Walfield
- Re: [openpgp] AEAD Chunk Size Bart Butler
- Re: [openpgp] AEAD Chunk Size Marcus Brinkmann
- Re: [openpgp] AEAD Chunk Size Bill Frantz
- Re: [openpgp] AEAD Chunk Size Jon Callas
- Re: [openpgp] AEAD Chunk Size Peter Gutmann
- Re: [openpgp] AEAD Chunk Size Peter Gutmann
- Re: [openpgp] AEAD Chunk Size Peter Gutmann
- Re: [openpgp] AEAD Chunk Size Peter Gutmann
- Re: [openpgp] AEAD Chunk Size Bill Frantz
- Re: [openpgp] AEAD Chunk Size Neal H. Walfield
- Re: [openpgp] AEAD Chunk Size Neal H. Walfield
- Re: [openpgp] AEAD Chunk Size Marcus Brinkmann
- Re: [openpgp] AEAD Chunk Size Marcus Brinkmann
- Re: [openpgp] AEAD Chunk Size Peter Gutmann
- Re: [openpgp] AEAD Chunk Size Neal H. Walfield
- Re: [openpgp] AEAD Chunk Size Peter Gutmann
- Re: [openpgp] AEAD Chunk Size Neal H. Walfield
- Re: [openpgp] AEAD Chunk Size Jon Callas
- Re: [openpgp] AEAD Chunk Size Wyllys Ingersoll
- Re: [openpgp] AEAD Chunk Size Jon Callas
- Re: [openpgp] AEAD Chunk Size Jon Callas
- Re: [openpgp] AEAD Chunk Size Jon Callas
- Re: [openpgp] AEAD Chunk Size brian m. carlson
- Re: [openpgp] AEAD Chunk Size Bart Butler
- Re: [openpgp] AEAD Chunk Size Benjamin Kaduk
- Re: [openpgp] AEAD Chunk Size Bart Butler
- Re: [openpgp] AEAD Chunk Size Benjamin Kaduk
- Re: [openpgp] AEAD Chunk Size Neal H. Walfield
- Re: [openpgp] AEAD Chunk Size Jon Callas
- Re: [openpgp] AEAD Chunk Size Peter Gutmann
- Re: [openpgp] AEAD Chunk Size Bart Butler
- Re: [openpgp] AEAD Chunk Size Benjamin Kaduk
- Re: [openpgp] AEAD Chunk Size Conrado P. L. Gouvêa
- Re: [openpgp] AEAD Chunk Size Conrado P. L. Gouvêa
- Re: [openpgp] AEAD Chunk Size Jon Callas
- Re: [openpgp] AEAD Chunk Size Neal H. Walfield
- Re: [openpgp] AEAD Chunk Size Neal H. Walfield
- Re: [openpgp] AEAD Chunk Size Derek Atkins
- Re: [openpgp] AEAD Chunk Size Neal H. Walfield
- Re: [openpgp] AEAD Chunk Size Derek Atkins
- Re: [openpgp] AEAD Chunk Size Derek Atkins
- Re: [openpgp] AEAD Chunk Size Jon Callas
- Re: [openpgp] AEAD Chunk Size Derek Atkins
- Re: [openpgp] AEAD Chunk Size Jon Callas
- Re: [openpgp] AEAD Chunk Size Heiko Stamer
- Re: [openpgp] AEAD Chunk Size Bart Butler
- Re: [openpgp] AEAD Chunk Size Bart Butler
- Re: [openpgp] AEAD Chunk Size Derek Atkins
- Re: [openpgp] AEAD Chunk Size Werner Koch
- Re: [openpgp] AEAD Chunk Size Benjamin Kaduk
- Re: [openpgp] [EXT] Re: AEAD Chunk Size Neil Hunsperger