Re: [quicwg/base-drafts] Change Packet Number Gap to Packet Number Offset (#1307)

MikkelFJ <notifications@github.com> Fri, 20 April 2018 13:55 UTC

Return-Path: <noreply@github.com>
X-Original-To: quic-issues@ietfa.amsl.com
Delivered-To: quic-issues@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 5653E127136 for <quic-issues@ietfa.amsl.com>; Fri, 20 Apr 2018 06:55:50 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -6.392
X-Spam-Level:
X-Spam-Status: No, score=-6.392 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HTML_IMAGE_ONLY_24=1.618, HTML_MESSAGE=0.001, MAILING_LIST_MULTI=-1, RCVD_IN_DNSWL_HI=-5, SPF_PASS=-0.001, T_DKIMWL_WL_HIGH=-0.01] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=github.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 wvjfydQyw7vT for <quic-issues@ietfa.amsl.com>; Fri, 20 Apr 2018 06:55:48 -0700 (PDT)
Received: from out-5.smtp.github.com (out-5.smtp.github.com [192.30.252.196]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 32D4B12751F for <quic-issues@ietf.org>; Fri, 20 Apr 2018 06:55:48 -0700 (PDT)
Date: Fri, 20 Apr 2018 06:55:47 -0700
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=github.com; s=pf2014; t=1524232547; bh=BeztLfITtkapO6YJFJrDAPSFYv1A02MbNRVK55y0j+0=; h=Date:From:Reply-To:To:Cc:In-Reply-To:References:Subject:List-ID: List-Archive:List-Post:List-Unsubscribe:From; b=Y0/XRvzOC8g4g4acAj6njtlhQGiQKxiiIgAZpYEyDelkLRA1T3w7x2mLfqdld9vLY +jtAQXoILaSQEicjxeiBRhOQp6teYstC+ElqAsbuDkDY5pHOVW+lultv4gaCovsVlC k11YdJEHLWOyqs7ddOaD++kx0YpKpdyW1x2pE83w=
From: MikkelFJ <notifications@github.com>
Reply-To: quicwg/base-drafts <reply+0166e4ab51fbc757c3f6f211cd884c7f3904c35b1ffb3faa92cf0000000116f1b36392a169ce12d68139@reply.github.com>
To: quicwg/base-drafts <base-drafts@noreply.github.com>
Cc: Subscribed <subscribed@noreply.github.com>
Message-ID: <quicwg/base-drafts/pull/1307/c383103858@github.com>
In-Reply-To: <quicwg/base-drafts/pull/1307@github.com>
References: <quicwg/base-drafts/pull/1307@github.com>
Subject: Re: [quicwg/base-drafts] Change Packet Number Gap to Packet Number Offset (#1307)
Mime-Version: 1.0
Content-Type: multipart/alternative; boundary="--==_mimepart_5ad9f1638e283_20343fd149710f84232412"; charset="UTF-8"
Content-Transfer-Encoding: 7bit
Precedence: list
X-GitHub-Sender: mikkelfj
X-GitHub-Recipient: quic-issues
X-GitHub-Reason: subscribed
X-Auto-Response-Suppress: All
X-GitHub-Recipient-Address: quic-issues@ietf.org
Archived-At: <https://mailarchive.ietf.org/arch/msg/quic-issues/wV8TkX69gRgXNnTxUISp0pP7_WQ>
X-BeenThere: quic-issues@ietf.org
X-Mailman-Version: 2.1.22
List-Id: Notification list for GitHub issues related to the QUIC WG <quic-issues.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/quic-issues>, <mailto:quic-issues-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/quic-issues/>
List-Post: <mailto:quic-issues@ietf.org>
List-Help: <mailto:quic-issues-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/quic-issues>, <mailto:quic-issues-request@ietf.org?subject=subscribe>
X-List-Received-Date: Fri, 20 Apr 2018 13:55:50 -0000

Just using a random seed might be sufficient to deter the average middle box and with CID update there is no privacy leak.
The resulting PN can be used as AEAD IV since it is a permutation of a unique non-repeating sequence. After CID update the AEAD keys must change, but then it is about time anyway.

-- 
You are receiving this because you are subscribed to this thread.
Reply to this email directly or view it on GitHub:
https://github.com/quicwg/base-drafts/pull/1307#issuecomment-383103858