Re: [quicwg/base-drafts] Consider simplifying Packet Number Encryption (#1575)

MikkelFJ <notifications@github.com> Tue, 17 July 2018 16:25 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 91BA8130EB2 for <quic-issues@ietfa.amsl.com>; Tue, 17 Jul 2018 09:25:43 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -8.01
X-Spam-Level:
X-Spam-Status: No, score=-8.01 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, 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 Of-Lvn6UaFLR for <quic-issues@ietfa.amsl.com>; Tue, 17 Jul 2018 09:25:41 -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 63D1B130DCF for <quic-issues@ietf.org>; Tue, 17 Jul 2018 09:25:41 -0700 (PDT)
Date: Tue, 17 Jul 2018 09:25:40 -0700
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=github.com; s=pf2014; t=1531844740; bh=fQXctBgrQ1LC5KDk9HxjgOOjvv8ed2wHa6sbUd3EPNo=; h=Date:From:Reply-To:To:Cc:In-Reply-To:References:Subject:List-ID: List-Archive:List-Post:List-Unsubscribe:From; b=tfAM0jmS5wRrPtTnNVI8XNOcmLbNlbIwQE4iT+7ZcSqEJbmOyXxw4N4NpPkyne1PS hhGyrGEHHpgJE2XbvGpA9H8/YszlcKJksHdzL0FygD6pdfIl9eHqjbE5hrgQqCBQdd J9++8ybZ2MEtxUMaJ2FMF3t3ssPIMjAdvA8MGXyA=
From: MikkelFJ <notifications@github.com>
Reply-To: quicwg/base-drafts <reply+0166e4ab67ffe50950720ec6af601a52c9e7988f3e3f4da492cf000000011765da8492a169ce14620d9d@reply.github.com>
To: quicwg/base-drafts <base-drafts@noreply.github.com>
Cc: Subscribed <subscribed@noreply.github.com>
Message-ID: <quicwg/base-drafts/issues/1575/405643429@github.com>
In-Reply-To: <quicwg/base-drafts/issues/1575@github.com>
References: <quicwg/base-drafts/issues/1575@github.com>
Subject: Re: [quicwg/base-drafts] Consider simplifying Packet Number Encryption (#1575)
Mime-Version: 1.0
Content-Type: multipart/alternative; boundary="--==_mimepart_5b4e18848ae84_4f282aac82494f5458845"; 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/VJyxF93nlOP5FJZ1e5QvrXpsfFA>
X-BeenThere: quic-issues@ietf.org
X-Mailman-Version: 2.1.27
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: Tue, 17 Jul 2018 16:25:43 -0000

If you send very short messages such as PING you risk overlapping with the AEAD tag and then it starts to get interesting figuring out how to decrypt the packet number.

-- 
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/issues/1575#issuecomment-405643429