IETF Logo Mail Archive

Re: Address privacy

Tom Herbert <tom@herbertland.com> Wed, 29 January 2020 00:47 UTC

Return-Path: <tom@herbertland.com>
X-Original-To: ipv6@ietfa.amsl.com
Delivered-To: ipv6@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id E56491200EF for <ipv6@ietfa.amsl.com>; Tue, 28 Jan 2020 16:47:31 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.897
X-Spam-Level:
X-Spam-Status: No, score=-1.897 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_NONE=0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=herbertland-com.20150623.gappssmtp.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 LFmTgiFsPL_3 for <ipv6@ietfa.amsl.com>; Tue, 28 Jan 2020 16:47:30 -0800 (PST)
Received: from mail-qk1-x736.google.com (mail-qk1-x736.google.com [IPv6:2607:f8b0:4864:20::736]) (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 63EB31200B3 for <ipv6@ietf.org>; Tue, 28 Jan 2020 16:47:30 -0800 (PST)
Received: by mail-qk1-x736.google.com with SMTP id v195so15386924qkb.11 for <ipv6@ietf.org>; Tue, 28 Jan 2020 16:47:30 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=herbertland-com.20150623.gappssmtp.com; s=20150623; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc:content-transfer-encoding; bh=FmipSqjyzBfKwBmh/Ox7hI5qjvJgLiTLRgBKBtAT6Qo=; b=Cwj6EG6427lnfzCm2X49xKt77YmbRQvUu3B8E36irHBIAYZVBgGcUey1/rx0YAm1at 5sY68AV5QIXClak5kyzbNqmb8PWPiZfJPBTS+Mr+khPj1dvY4dSVICdv5Fz1mZOJW83k hsxE3uyeFeHF4dn3m/zk4Se1QMS0Fpvmki/8OYnMvEx3oSsJ0TGsH0JZ4wfMhr3aNln/ mIaP14aKOKweSfp2BSrU0g/jFhia77tWy8X3IimuA0kPPEKzCogdx1MNYNNz7acDmzVp Np4/n5s35bsWqW/XiwmrIQi5Da/VnQJQvGlVLNmlxacYiF6rLuY5tDgaL0iVOAHhBxee m4jg==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc:content-transfer-encoding; bh=FmipSqjyzBfKwBmh/Ox7hI5qjvJgLiTLRgBKBtAT6Qo=; b=p4CG/Te1T8+gnyZiez2Vys37gRojmnp6kwoalN91CpimKxEi3RnK1bMogvcWbZK0Ul SD4Ppv3/iWpTGbcc3VRe0GpBLjP+HlUChD1b/SNFfjjvNyn/ZaZGiy32hVDolcMIQ0u0 J1kdqZ6W4v4ZBM6TiggdGBKCGC53NwZvBc/0EaDpBzXkplaNKn3jZr3soNPkgC0B+PRe Rj4ysD2JZZ9g7Ym24JZ2JkAbdv+E9iTFt1b1ZV8vzJ82ZG/5IkyqSe43cDYoU1U6cIUV /LPadDAUcg2s2OzkvyP8XKsduXaVwtolFHn1lthKa9QZy9iYGzY8SvMqhSIcJ//f2mGz wixw==
X-Gm-Message-State: APjAAAWXuvUqGqAJyKGtgo59p1j6E/35gsPuJTvzDcVb7FW3U7WKoPhe HjiKjsbIkgonALcmWEPsTvPmaqlaQqd7bv1TMXgUsIwW
X-Google-Smtp-Source: APXvYqzjPfQbnPy/xhQzDDRvLog25kZeupA8RkAbvNTnT0ad2Ic1Ee/iXTu6cwDxON7Ul3s2tNQlmu24Gg1MpJDJou0=
X-Received: by 2002:a37:6442:: with SMTP id y63mr24856467qkb.111.1580258849434; Tue, 28 Jan 2020 16:47:29 -0800 (PST)
MIME-Version: 1.0
References: <03C832CE-7282-4320-BF1B-4CB7167FE6BE@employees.org> <1962.1579823388@localhost> <f83ab037-9125-bb74-dbac-68850aeb1020@huitema.net> <CBB23ABE-A7A3-4208-873C-E47EE063E34B@fugue.com> <11855.1579980079@localhost> <CALx6S36V_VjaxhELYcsgDYLWsCkj20p6gtiY9T9Q=9-9Oibyjw@mail.gmail.com> <32626.1580060558@localhost> <CALx6S37prWACD0jv9c-XHD-JtPqZAcgeT2Ax0EZHkiQaDR4t=g@mail.gmail.com> <419b7c7a-e364-7951-5a44-6c39e1da65fb@joelhalpern.com> <CALx6S36802oDaEgojAPq2c6hM_s1BayidXPh1Sc6RZmZa9UHpQ@mail.gmail.com> <6c5ba72d-9289-90ba-a1c9-2307ed29a4da@foobar.org> <a98bf2ab-32e7-459b-14d2-5e0e1c65a229@si6networks.com> <CALx6S36J5TPnXJQyMW2NUbQV6KL_oqUQ01m+BEzBJ+xcHpmQWw@mail.gmail.com> <bc0d1eb8-2301-224d-dc33-19f6a60e593e@si6networks.com> <CALx6S34i67ivt8t1P3omRVzsj9NfxY2t41JLjmjT6X0vtBQHKQ@mail.gmail.com> <1fc7816e-6179-28d6-7b11-be2027561a54@si6networks.com> <CALx6S37KXfLE22uHMZTD41+jR7fdZd9PZGqO-r4SE2LehtN=Gg@mail.gmail.com> <2d312ecf-e037-5c24-28d7-2a2c3dc06363@si6networks.com> <CALx6S37A1QzR0PhDUzujXGiB+a-9c1qG4g8TE8KOcxOLKP18TQ@mail.gmail.com> <42900FAF-7FD8-46D8-9831-5B9E520814BB@fugue.com>
In-Reply-To: <42900FAF-7FD8-46D8-9831-5B9E520814BB@fugue.com>
From: Tom Herbert <tom@herbertland.com>
Date: Tue, 28 Jan 2020 16:47:17 -0800
Message-ID: <CALx6S36f41nbj=2fibt9X2EpDO1Rz6o2Fm-QeNMvUfzPCu10jw@mail.gmail.com>
Subject: Re: Address privacy
To: Ted Lemon <mellon@fugue.com>
Cc: Fernando Gont <fgont@si6networks.com>, 6man WG <ipv6@ietf.org>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
Archived-At: <https://mailarchive.ietf.org/arch/msg/ipv6/8OiTUYsfVE82FPXjKnYYA_-ULsQ>
X-BeenThere: ipv6@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: "IPv6 Maintenance Working Group \(6man\)" <ipv6.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/ipv6>, <mailto:ipv6-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/ipv6/>
List-Post: <mailto:ipv6@ietf.org>
List-Help: <mailto:ipv6-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/ipv6>, <mailto:ipv6-request@ietf.org?subject=subscribe>
X-List-Received-Date: Wed, 29 Jan 2020 00:47:32 -0000

On Tue, Jan 28, 2020 at 4:35 PM Ted Lemon <mellon@fugue.com> wrote:
>
> On Jan 28, 2020, at 7:17 PM, Tom Herbert <tom@herbertland.com> wrote:
>
> It is quantified. If a flow uses a unique address then the risk of
> using the address of packets in the flow to correlate to other flows
> is zero.
>
>
> Er, no, because the address contains a lot of bits that don’t change.  64, typically.  Those bits can be used to correlate other flows.

Addresses might be correlated to a provider, but no correlations can
be made between addresses within the provider space so attributing
different flows to the same user cannot be done. A NAT device with a
large number backend users would exhibit these properties even in
IPv4.

Tom

>

v2.23.0 | Report a Bug | By Email