Re: [quicwg/base-drafts] Privacy for connection IDs (#598)

ianswett <notifications@github.com> Mon, 12 June 2017 16:12 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 CB185127444 for <quic-issues@ietfa.amsl.com>; Mon, 12 Jun 2017 09:12:19 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -9.799
X-Spam-Level:
X-Spam-Status: No, score=-9.799 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_32=0.001, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_HI=-5, RCVD_IN_MSPIKE_H2=-2.8, SPF_PASS=-0.001] 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 OyDU67Y9af2q for <quic-issues@ietfa.amsl.com>; Mon, 12 Jun 2017 09:12:17 -0700 (PDT)
Received: from github-smtp2a-ext-cp1-prd.iad.github.net (github-smtp2-ext5.iad.github.net [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 C06BD127011 for <quic-issues@ietf.org>; Mon, 12 Jun 2017 09:12:17 -0700 (PDT)
Date: Mon, 12 Jun 2017 09:12:16 -0700
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=github.com; s=pf2014; t=1497283936; bh=fPg3owkXzIzcKTbsMFDJ6eEe0NYRq8MUCS4WWPG6pcM=; h=From:Reply-To:To:Cc:In-Reply-To:References:Subject:List-ID: List-Archive:List-Post:List-Unsubscribe:From; b=kWZJltznrykbzNYUH9CK6gAny1dq6IPevdoVeHsWb3NfCQ0n/E5a+MePyMs7xaIar dKzj1oqj5szSaB7GKo8blEJ/42rX6TzewQ03ZsPYvqzEyueG1RzIjoYMatVT6XeGyb D5Od8yap9rl7YFvXr3fAXTajmNuMpeXgtFyonpw0=
From: ianswett <notifications@github.com>
Reply-To: quicwg/base-drafts <reply+0166e4ab6eb90ac03107702224166b344b115b21e2938fae92cf0000000115567f6092a169ce0df46458@reply.github.com>
To: quicwg/base-drafts <base-drafts@noreply.github.com>
Cc: Subscribed <subscribed@noreply.github.com>
Message-ID: <quicwg/base-drafts/issues/598/307838138@github.com>
In-Reply-To: <quicwg/base-drafts/issues/598@github.com>
References: <quicwg/base-drafts/issues/598@github.com>
Subject: Re: [quicwg/base-drafts] Privacy for connection IDs (#598)
Mime-Version: 1.0
Content-Type: multipart/alternative; boundary="--==_mimepart_593ebd60c699e_67773ffc527f9c3c103187"; charset="UTF-8"
Content-Transfer-Encoding: 7bit
Precedence: list
X-GitHub-Sender: ianswett
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/QAog7w-XlXDBoEnxJ5M8rFYxFIc>
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: Mon, 12 Jun 2017 16:12:20 -0000

As I stated at the interim, #2 terrifies me for the following reasons(mostly above):
 1) It's complex.
 2) It's practically impossible to prevent connection hangs, particularly in the presence of bursty loss.
 3) It has substantial byte overhead.
 4) I think it creates a form of memory attack, since you need to buffer as many connection ids as supplied.
 5) It requires a load balancer to do crypto, which add complexity and CPU, as well as introducing another deployment challenge.

Option 1 is not ideal either, but I believe it's vastly more deployable.

-- 
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/598#issuecomment-307838138