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Re: [quicwg/base-drafts] Stateless Reset packet sizes should not depend on the maximum connection ID length (#2869)

Martin Thomson <notifications@github.com> Tue, 02 July 2019 22:31 UTC

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Subject: Re: [quicwg/base-drafts] Stateless Reset packet sizes should not depend on the maximum connection ID length (#2869)
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> assume we just changed from an 18 byte client connection ID to a 4-byte connection ID 

This does not permit the attacker any knowledge of the client.  If a client always selects an 18 byte connection ID, a stateless reset will stand out.

> a Stateless Reset will stick out to observers who will notice that the client stops sending on that particular connection

The goal is to avoid having the message interfered with in transit.  After it gets through and is processed, what happens after doesn't matter.

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