IETF Logo Mail Archive

Re: [TLS] Remove EncryptedExtensions from 0-RTT

Martin Thomson <martin.thomson@gmail.com> Mon, 27 June 2016 01:33 UTC

Return-Path: <martin.thomson@gmail.com>
X-Original-To: tls@ietfa.amsl.com
Delivered-To: tls@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id CEC2012D54C for <tls@ietfa.amsl.com>; Sun, 26 Jun 2016 18:33:09 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.7
X-Spam-Level:
X-Spam-Status: No, score=-2.7 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_LOW=-0.7, SPF_PASS=-0.001] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=gmail.com
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 IvqTF3eQzTeh for <tls@ietfa.amsl.com>; Sun, 26 Jun 2016 18:33:08 -0700 (PDT)
Received: from mail-qk0-x22f.google.com (mail-qk0-x22f.google.com [IPv6:2607:f8b0:400d:c09::22f]) (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 42EDB12D548 for <tls@ietf.org>; Sun, 26 Jun 2016 18:33:08 -0700 (PDT)
Received: by mail-qk0-x22f.google.com with SMTP id p10so193097739qke.3 for <tls@ietf.org>; Sun, 26 Jun 2016 18:33:08 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc; bh=FvkSB1yRhOEZ467bavLWRJUfdQ0mcFwwpnSBqbg3seU=; b=n14XyLmjmOcfAvNOwys61Q2mQRxbvyLioWQLZx6a9U0oTyX8XT9BvTIiI4z3Oj5SLZ LMxNUmrnp4Y9KvyZHwNHqmgOFf7TAIhNiPRoVtD5vC9NfdtWXg01XAi1sZZPMpL2btFE TVwX4H/SRHC1xKJmRzGdCF6MSpu3xVKcbBYbQWqdyZtn4ERYD4dcHoD0YzrECc8qaPiU y1DNfvEHx6rwnP3Xs1FC1AtuekU6rCec6pp8gJoolbjAt2k8jOARJ8fHiTH0QiBPVIgk 6cRwRHf8JsIYnFGeJf54YwTsapTOo1BsPUag+cmUWVstrDNnOK4ElZ1xXoPqw12XHO7H I1uw==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc; bh=FvkSB1yRhOEZ467bavLWRJUfdQ0mcFwwpnSBqbg3seU=; b=kayc9LJtM4MeTm6E1iS9hj61ZELhkpmTOkn6+eQvg47j4nwPy5tDReof1m++9rUxme bJgUdpxU8QOYSvWydLl0t6lc6QJjZbrCi65rR2R5ogrdiHTtYuv+K7/UDoO8m0YiDrnk s+Sff9MK7c88zX8bqH6KdH6aIjpiXaldO6PjlodszBrSHvBUMG8QrQuI4TT0cxh90mf2 xc7vfwC6udNePn5BnDB0L3TM0oxJpt7QEw1CNvg9cfuoqY/MzspHcuE2M1sZxBZKb823 Y97auc8UgcuS9RGCpX0p90yT3I/i3WKoKmjoEjjr9tJoIt5HYixgvv6nq7fYqWZZRzG/ tN/g==
X-Gm-Message-State: ALyK8tKIXzTj9kq1IK1Y6BzQfgeI86U9dEq+DEn1WZnOJhHuacDOgz7QYYMtmqJxRk3lsxbGSPyCMap1aWN9Jw==
X-Received: by 10.55.118.196 with SMTP id r187mr19172494qkc.32.1466991187460; Sun, 26 Jun 2016 18:33:07 -0700 (PDT)
MIME-Version: 1.0
Received: by 10.140.22.38 with HTTP; Sun, 26 Jun 2016 18:33:06 -0700 (PDT)
In-Reply-To: <20160626163416.GA24381@LK-Perkele-V2.elisa-laajakaista.fi>
References: <CABkgnnVFg2iCc8eWX40+25ATE=dAw3WmndReO0ky2j1K_soLPQ@mail.gmail.com> <20160623103546.GA5287@LK-Perkele-V2.elisa-laajakaista.fi> <CAF8qwaB6EiP-O3s+pCw9wGHvAH1iFZRQ_GbNJOXwiO2LW4iCvg@mail.gmail.com> <CAF8qwaA-XVz-t8G5mos4mm9LfrVjEbh1TKy8n3uKi416t7e_MA@mail.gmail.com> <CABkgnnWEg31RrD+9-NJAg_R4oC9oPz4wWKFoxvhNJEi=9_o-Og@mail.gmail.com> <974CF78E8475CD4CA398B1FCA21C8E995655BEB2@PRN-MBX01-4.TheFacebook.com> <20160626163416.GA24381@LK-Perkele-V2.elisa-laajakaista.fi>
From: Martin Thomson <martin.thomson@gmail.com>
Date: Mon, 27 Jun 2016 11:33:06 +1000
Message-ID: <CABkgnnX-8p+-2jLs-ZSOA7p+4B23v3Sror5nztOsyHUtOsLs6Q@mail.gmail.com>
To: Ilari Liusvaara <ilariliusvaara@welho.com>
Content-Type: text/plain; charset="UTF-8"
Archived-At: <https://mailarchive.ietf.org/arch/msg/tls/9pc69b6QCyQbsdC0pjwLwGO4fwg>
Cc: "tls@ietf.org" <tls@ietf.org>
Subject: Re: [TLS] Remove EncryptedExtensions from 0-RTT
X-BeenThere: tls@ietf.org
X-Mailman-Version: 2.1.17
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, 27 Jun 2016 01:33:10 -0000

On 27 June 2016 at 02:34, Ilari Liusvaara <ilariliusvaara@welho.com> wrote:
> That's the reason it is XOR'd currently, but the XOR probably will
> be changed to ADD32 to break correlation-to-parent (which is really
> nasty privacy-wise) in case of ticket reuse.

Let's not make that probably.  I've updated the PR.

v2.27.6 | Report a Bug | By Email | System Status