Re: [TLS] RSA-PSS in TLS 1.3
Ilari Liusvaara <ilariliusvaara@welho.com> Mon, 07 March 2016 16:04 UTC
Return-Path: <ilariliusvaara@welho.com>
X-Original-To: tls@ietfa.amsl.com
Delivered-To: tls@ietfa.amsl.com
Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 9E70F1B4375 for <tls@ietfa.amsl.com>; Mon, 7 Mar 2016 08:04:36 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.901
X-Spam-Level:
X-Spam-Status: No, score=-1.901 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RP_MATCHES_RCVD=-0.001] 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 EC4KecaYjEsm for <tls@ietfa.amsl.com>; Mon, 7 Mar 2016 08:04:34 -0800 (PST)
Received: from welho-filter4.welho.com (welho-filter4.welho.com [83.102.41.26]) by ietfa.amsl.com (Postfix) with ESMTP id 5928B1B4373 for <tls@ietf.org>; Mon, 7 Mar 2016 08:04:32 -0800 (PST)
Received: from localhost (localhost [127.0.0.1]) by welho-filter4.welho.com (Postfix) with ESMTP id 46E4D488F; Mon, 7 Mar 2016 18:04:31 +0200 (EET)
X-Virus-Scanned: Debian amavisd-new at pp.htv.fi
Received: from welho-smtp3.welho.com ([IPv6:::ffff:83.102.41.86]) by localhost (welho-filter4.welho.com [::ffff:83.102.41.26]) (amavisd-new, port 10024) with ESMTP id u5uOovNcoYlB; Mon, 7 Mar 2016 18:04:29 +0200 (EET)
Received: from LK-Perkele-V2 (87-100-151-39.bb.dnainternet.fi [87.100.151.39]) (using TLSv1 with cipher ECDHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by welho-smtp3.welho.com (Postfix) with ESMTPSA id E27D32310; Mon, 7 Mar 2016 18:04:29 +0200 (EET)
Date: Mon, 07 Mar 2016 18:04:23 +0200
From: Ilari Liusvaara <ilariliusvaara@welho.com>
To: Hannes Mehnert <hannes@mehnert.org>
Message-ID: <20160307160423.GA15882@LK-Perkele-V2.elisa-laajakaista.fi>
References: <CAOgPGoD=AAFDUXN8VkOHwTMEUm+-qi548NsicoD=1yQKSu-sng@mail.gmail.com> <CABkgnnX4Orgk7dvOtKN5FLryepf7Pb_bJtkxDiN+L7UUfthvSw@mail.gmail.com> <E3F402CD-24B4-4E86-B57B-45F6442645FB@gmail.com> <56DD876D.2060001@mehnert.org>
MIME-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Disposition: inline
Content-Transfer-Encoding: 8bit
In-Reply-To: <56DD876D.2060001@mehnert.org>
User-Agent: Mutt/1.5.24 (2015-08-30)
Sender: ilariliusvaara@welho.com
Archived-At: <http://mailarchive.ietf.org/arch/msg/tls/mKVehW42xxmxD8Z7F80biMlRkIw>
Cc: tls@ietf.org
Subject: Re: [TLS] RSA-PSS in TLS 1.3
X-BeenThere: tls@ietf.org
X-Mailman-Version: 2.1.15
Precedence: list
List-Id: "This is the mailing list for the Transport Layer Security working group of the IETF." <tls.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/tls>, <mailto:tls-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/tls/>
List-Post: <mailto:tls@ietf.org>
List-Help: <mailto:tls-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/tls>, <mailto:tls-request@ietf.org?subject=subscribe>
X-List-Received-Date: Mon, 07 Mar 2016 16:04:36 -0000
On Mon, Mar 07, 2016 at 01:51:41PM +0000, Hannes Mehnert wrote: > On 01/03/2016 11:32, Yoav Nir wrote: > >> On 1 Mar 2016, at 6:56 AM, Martin Thomson <martin.thomson@gmail.com> wrote: > >> > >> On 1 March 2016 at 04:32, Joseph Salowey <joe@salowey.net> wrote: > >>> We make RSA-PSS mandatory to implement (MUST implement instead of MUST > >>> offer). Clients can advertise support for PKCS-1.5 for backwards > >>> compatibility in the transition period. > >> > >>> From my perspective, this is fine. I would like to say that we won't > >> ever support PKCS#1.5 for TLS 1.3, but I think that I would rather > >> have users on 1.3 with PKCS#1.5 than have them stuck on 1.2. > >> > >> It seems like others are taking the position that we should say "MUST > >> NOT use PKCS#1.5”. > > > > I’d go even further. I’d remove the rsapss(4) value from SignatureAlgorithm, > > leaving just rsa(1), and say that in TLS 1.3 an RSA signature is PSS just > > as it was PKCS#1.5 in TLS 1.2. > > I strongly agree to Yoav's proposal! No need to have both RSA(-PKCS) > and RSA-PSS numbers in SignatureAlgorithms. Doesn't SignatureAlgorithms also negotiate the algorithms supported for the cert chain? If it does, I think that complicates things. Also, making the same ClientHello mean two different things depending on yet-unnegotiated version seems odd to me. -Ilari
- Re: [TLS] RSA-PSS in TLS 1.3 Andrey Jivsov
- Re: [TLS] RSA-PSS in TLS 1.3 Russ Housley
- Re: [TLS] RSA-PSS in TLS 1.3 Joseph Salowey
- Re: [TLS] RSA-PSS in TLS 1.3 Yoav Nir
- Re: [TLS] RSA-PSS in TLS 1.3 Hanno Böck
- [TLS] RSA-PSS in TLS 1.3 Joseph Salowey
- Re: [TLS] RSA-PSS in TLS 1.3 Viktor Dukhovni
- Re: [TLS] RSA-PSS in TLS 1.3 Benjamin Beurdouche
- Re: [TLS] RSA-PSS in TLS 1.3 Yoav Nir
- Re: [TLS] RSA-PSS in TLS 1.3 Brian Smith
- Re: [TLS] RSA-PSS in TLS 1.3 Andrey Jivsov
- Re: [TLS] RSA-PSS in TLS 1.3 Salz, Rich
- Re: [TLS] RSA-PSS in TLS 1.3 Andrey Jivsov
- Re: [TLS] RSA-PSS in TLS 1.3 Dave Garrett
- Re: [TLS] RSA-PSS in TLS 1.3 Hanno Böck
- Re: [TLS] RSA-PSS in TLS 1.3 Andrey Jivsov
- Re: [TLS] RSA-PSS in TLS 1.3 Martin Thomson
- Re: [TLS] RSA-PSS in TLS 1.3 Viktor Dukhovni
- Re: [TLS] RSA-PSS in TLS 1.3 Viktor Dukhovni
- Re: [TLS] RSA-PSS in TLS 1.3 Martin Thomson
- Re: [TLS] RSA-PSS in TLS 1.3 Nikos Mavrogiannopoulos
- Re: [TLS] RSA-PSS in TLS 1.3 Yoav Nir
- Re: [TLS] RSA-PSS in TLS 1.3 Yoav Nir
- Re: [TLS] RSA-PSS in TLS 1.3 Alyssa Rowan
- Re: [TLS] RSA-PSS in TLS 1.3 Watson Ladd
- Re: [TLS] RSA-PSS in TLS 1.3 Viktor Dukhovni
- Re: [TLS] RSA-PSS in TLS 1.3 Yoav Nir
- Re: [TLS] RSA-PSS in TLS 1.3 Hanno Böck
- Re: [TLS] RSA-PSS in TLS 1.3 Martin Thomson
- Re: [TLS] RSA-PSS in TLS 1.3 Andrey Jivsov
- Re: [TLS] RSA-PSS in TLS 1.3 Yoav Nir
- Re: [TLS] RSA-PSS in TLS 1.3 Viktor Dukhovni
- Re: [TLS] RSA-PSS in TLS 1.3 Rob Stradling
- Re: [TLS] RSA-PSS in TLS 1.3 Rob Stradling
- Re: [TLS] RSA-PSS in TLS 1.3 Yoav Nir
- Re: [TLS] RSA-PSS in TLS 1.3 Eric Rescorla
- Re: [TLS] RSA-PSS in TLS 1.3 Yoav Nir
- Re: [TLS] RSA-PSS in TLS 1.3 Dave Garrett
- Re: [TLS] RSA-PSS in TLS 1.3 Dang, Quynh (Fed)
- Re: [TLS] RSA-PSS in TLS 1.3 Hanno Böck
- Re: [TLS] RSA-PSS in TLS 1.3 Dang, Quynh (Fed)
- Re: [TLS] RSA-PSS in TLS 1.3 Blumenthal, Uri - 0553 - MITLL
- Re: [TLS] RSA-PSS in TLS 1.3 Hanno Böck
- Re: [TLS] RSA-PSS in TLS 1.3 Dang, Quynh (Fed)
- Re: [TLS] RSA-PSS in TLS 1.3 Nikos Mavrogiannopoulos
- Re: [TLS] RSA-PSS in TLS 1.3 Martin Rex
- Re: [TLS] RSA-PSS in TLS 1.3 Scott Fluhrer (sfluhrer)
- Re: [TLS] RSA-PSS in TLS 1.3 Hanno Böck
- Re: [TLS] RSA-PSS in TLS 1.3 Martin Rex
- Re: [TLS] RSA-PSS in TLS 1.3 Fedor Brunner
- Re: [TLS] RSA-PSS in TLS 1.3 Martin Rex
- Re: [TLS] RSA-PSS in TLS 1.3 Hubert Kario
- Re: [TLS] RSA-PSS in TLS 1.3 Nikos Mavrogiannopoulos
- Re: [TLS] RSA-PSS in TLS 1.3 Hannes Mehnert
- Re: [TLS] RSA-PSS in TLS 1.3 Scott Fluhrer (sfluhrer)
- Re: [TLS] RSA-PSS in TLS 1.3 Ilari Liusvaara
- Re: [TLS] RSA-PSS in TLS 1.3 Scott Fluhrer (sfluhrer)
- Re: [TLS] RSA-PSS in TLS 1.3 Scott Fluhrer (sfluhrer)
- Re: [TLS] RSA-PSS in TLS 1.3 Hubert Kario
- Re: [TLS] RSA-PSS in TLS 1.3 Tony Arcieri
- [TLS] (TLS1.3 - algorithm agility support is enou… Rene Struik
- Re: [TLS] (TLS1.3 - algorithm agility support is … Blumenthal, Uri - 0553 - MITLL
- Re: [TLS] (TLS1.3 - algorithm agility support is … Scott Fluhrer (sfluhrer)
- Re: [TLS] RSA-PSS in TLS 1.3 Scott Fluhrer (sfluhrer)
- Re: [TLS] RSA-PSS in TLS 1.3 Hubert Kario
- Re: [TLS] RSA-PSS in TLS 1.3 Viktor Dukhovni
- Re: [TLS] RSA-PSS in TLS 1.3 Hubert Kario
- Re: [TLS] RSA-PSS in TLS 1.3 Tony Arcieri