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Re: A question about user tracking with QUIC

Stephane Bortzmeyer <bortzmeyer@nic.fr> Mon, 07 June 2021 14:23 UTC

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Date: Mon, 07 Jun 2021 16:20:16 +0200
From: Stephane Bortzmeyer <bortzmeyer@nic.fr>
To: Mikkel Fahnøe Jørgensen <mikkelfj@gmail.com>
Cc: Stephane Bortzmeyer <bortzmeyer@nic.fr>, Lucas Pardue <lucaspardue.24.7@gmail.com>, IETF QUIC WG <quic@ietf.org>, Robin MARX <robin.marx=40uhasselt.be@dmarc.ietf.org>
Subject: Re: A question about user tracking with QUIC
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On Mon, Jun 07, 2021 at 03:36:31PM +0200,
 Mikkel Fahnøe Jørgensen <mikkelfj@gmail.com> wrote 
 a message of 37 lines which said:

> User tracking has been discussed a lot during the development of the
> QUIC protocol.

User tracking BY THE SERVER? I'm sure the WG left no stone unturned
but I cannot find this discussions in the email archives. I probably
used the wrong keywords.

> For servers, it is necessary to track users across migrations,
> because you need to maintain connection state and to maintain the IP
> address of where to send data.

This is why that I suggested (but it may be a bad idea, may be I
didn't think of everything) that a privacy-conscious client may be
better by not using connection migration, and resetting to an entirely
new connection when the IP address changes.

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