Re: [quicwg/base-drafts] Spin per peer (#1982)

Martin Thomson <notifications@github.com> Fri, 30 November 2018 01:16 UTC

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Date: Fri, 30 Nov 2018 01:16:17 +0000
From: Martin Thomson <notifications@github.com>
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Subject: Re: [quicwg/base-drafts] Spin per peer (#1982)
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martinthomson commented on this pull request.



> @@ -235,12 +235,23 @@ Implementations SHOULD allow administrators of clients and servers to disable
 the spin bit either globally or on a per-connection basis.
 Even when the spin bit is not disabled by the administrator implementations
 SHOULD disable the spin bit on a randomly chosen
-fraction of connections.  The selection process should be designed such that
-on average the spin bit is disabled for at least 1/8th of the connections.
-
-When the spin bit is disabled, endpoints SHOULD set the spin bit value to zero,
-regardless of the values received from their peer. Addendums or revisions to
-this document MAY define alternative behaviors in the future.
+fraction of connections.
+
+The selection process SHOULD be designed such that

That was my point.  In addition to the recommendation about stable decisions being over-engineering, I believe that it's a privacy risk, because it lets an observer link activity from the same location over time.  It's not a huge risk, but when we're so specific about advice, people will implement that and when that advice is potentially bad, that's not great.

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