IETF Logo Mail Archive

Re: [TLS] TLS 1.3 draft-07 sneak peek

Hubert Kario <hkario@redhat.com> Fri, 03 July 2015 17:53 UTC

Return-Path: <hkario@redhat.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 0693B1A7004 for <tls@ietfa.amsl.com>; Fri, 3 Jul 2015 10:53:59 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -6.911
X-Spam-Level:
X-Spam-Status: No, score=-6.911 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_HI=-5, SPF_HELO_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01] 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 eJwVMa-lCq4Y for <tls@ietfa.amsl.com>; Fri, 3 Jul 2015 10:53:57 -0700 (PDT)
Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id B9DDB1A7003 for <tls@ietf.org>; Fri, 3 Jul 2015 10:53:57 -0700 (PDT)
Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id 804CEC7855; Fri, 3 Jul 2015 17:53:57 +0000 (UTC)
Received: from pintsize.usersys.redhat.com (ovpn-112-81.ams2.redhat.com [10.36.112.81]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id t63HrrxT016404 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Fri, 3 Jul 2015 13:53:56 -0400
From: Hubert Kario <hkario@redhat.com>
To: Eric Rescorla <ekr@rtfm.com>
Date: Fri, 03 Jul 2015 19:53:45 +0200
Message-ID: <2070265.aJZlsBJAF8@pintsize.usersys.redhat.com>
User-Agent: KMail/4.14.7 (Linux/4.0.4-202.fc21.x86_64; KDE/4.14.7; x86_64; ; )
In-Reply-To: <CABcZeBPmyZ7Hvb2KDPfNw7Ov-AQwzi9Ww6vL-PY-2yst4pEEHw@mail.gmail.com>
References: <CABcZeBOWK_WnHAefsZUBr4UyEkyiZqi1mhoZH8ZeGFftdOqTTw@mail.gmail.com> <4069375.XY312j7rEL@pintsize.usersys.redhat.com> <CABcZeBPmyZ7Hvb2KDPfNw7Ov-AQwzi9Ww6vL-PY-2yst4pEEHw@mail.gmail.com>
MIME-Version: 1.0
Content-Type: multipart/signed; boundary="nextPart2010179.0ehfq59J8k"; micalg="pgp-sha512"; protocol="application/pgp-signature"
X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27
Archived-At: <http://mailarchive.ietf.org/arch/msg/tls/lhz2s_Br3UdRYDpu_iA75Xa-YWc>
Cc: "tls@ietf.org" <tls@ietf.org>
Subject: Re: [TLS] TLS 1.3 draft-07 sneak peek
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: Fri, 03 Jul 2015 17:53:59 -0000

On Friday 03 July 2015 10:34:41 Eric Rescorla wrote:
> On Fri, Jul 3, 2015 at 10:23 AM, Hubert Kario <hkario@redhat.com> wrote:
> > On Tuesday 30 June 2015 15:23:18 Eric Rescorla wrote:
> > > Folks,
> > > 
> > > Yesterday, I posted the -06 draft which snapshots the consensus changes
> > > made since -05, specifically:
> > > 
> > > - Prohibit RC4 negotiation for backwards compatibility.
> > > - Freeze & deprecate record layer version field.
> > > - Update format of signatures with context.
> > > - Remove explicit IV.
> > 
> > I've noticed that the default values in case the client didn't use
> > signature
> > algorithms extensions is to use SHA1+RSA, SHA1+DSA and SHA1+ECDSA.
> > 
> > As we all know, those are not considered secure now.
> > 
> > Maybe we should update it to SHA256 for all three?
> 
> I would welcome a PR for that.

Done:
https://github.com/ekr/tls13-spec/pull/12

-- 
Regards,
Hubert Kario
Quality Engineer, QE BaseOS Security team
Web: www.cz.redhat.com
Red Hat Czech s.r.o., Purkyňova 99/71, 612 45, Brno, Czech Republic

v2.23.0 | Report a Bug | By Email