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Re: [hybi] Masking only Payload/Extension Data

Brian <theturtle32@gmail.com> Thu, 10 March 2011 20:55 UTC

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References: <4D77B885.5050109@callenish.com> <OF36FEDDC6.06951577-ON8825784E.0062343E-8825784E.0066AC27@playstation.sony.com> <AANLkTinau4g1pB_ccJ31u7WRi5npYtHvXE5YRn5uTbeV@mail.gmail.com> <AANLkTikB4YeaYiF_NVGn61c1YxpNWbmEWQZu1WcN+=Jf@mail.gmail.com> <1299704939.2606.238.camel@ds9.ducksong.com> <20110309214212.GA29190@1wt.eu> <AANLkTi=i=8aWg=6+T7=Kn5dWeKkW6MYVCH_CuNkt_ZMM@mail.gmail.com> <AANLkTimip9o0RoZaBfONCmg5nuJVWXjOKDKgAt8zrNVV@mail.gmail.com> <AANLkTikbFBeM6+hiURSBqxFyjc2Wc-yh8UJnZiO+U0JX@mail.gmail.com> <4D7915FF.50300@callenish.com> <AANLkTik557Y=tvpA-CypTgrGpxJTtfscmFuGKi0YEt0d@mail.gmail.com> <AANLkTikbObWcOzFZGrS=yWZqzVdpm6z4j2B+WfEbqQWX@mail.gmail.com> <AANLkTi=Dc355npia4g3zijYOrt0BfiwbX9bUGzXa=Cq1@mail.gmail.com> <AANLkTikaECyZ-jQ+pX1eOezBrGTajrBk6TwNQ7ZCE1GY@mail.gmail.com> <AANLkTin-6t=yyPKqBJ38WsNBy5+b4d5MmKpPmdNfh0UQ@mail.gmail.com> <AANLkTimvZ_dX6-6Gt5BW3-cUHmZm1pq=nYm8HTsykbW3@mail.gmail.com> <AANLkTinPp5bCrwhy1oWvZZvt0VCzN=rDjKgz7inq7nrO@mail.gmail.com> <AANLkTin7=_ywd8M-A4yZ=fQ=nTyHSLzeV34Jgyi+JCps@mail.gmail.com>
Date: Thu, 10 Mar 2011 12:56:53 -0800
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From: Brian <theturtle32@gmail.com>
To: David Endicott <dendicott@gmail.com>
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Cc: Hybi <hybi@ietf.org>
Subject: Re: [hybi] Masking only Payload/Extension Data
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Just a quick updated tally of support/opposition:

By my count, we now have eight voices in favor so far, including myself:
Andy Green
Ytaka Takeda
Greg Wilkins
Willy Tarreau
Joel Martin
Brian McKelvey
Bruce Atherton
Julian Reschke

Three on record as not having a strong opinion one way or the other:
Ian Fette
John Endicott (Generally in favor, but not strongly so)
John Tamplin (Generally opposed, but hasn't mentioned a strong
opposition that I've seen)


And two opposed:
Adam Barth
Patrick McManus

If I've missed or misrepresented anyone, please let me know.

I agree with Bruce in that I feel that pretty much everything that can
be said on the topic at hand has been said.  Sal, what is the next
step for the WG toward a declaration of consensus one way or the
other?  Do we need a hum or formal straw poll, or will this thread
suffice as such?  Is further discussion warranted?


Brian


On Thu, Mar 10, 2011 at 11:59 AM, David Endicott <dendicott@gmail.com> wrote:
> Certainly not for a computer.  (But I'm getting older and it's
> becoming difficult to xor in my head these days.)
>
> But any extra work is extra work, and if the agent is manipulating
> frames without processing them then its likely performance is a
> concern.  Not that I really think xor'ing a few bytes is going to cost
> enough clock cycles to matter.
>
> My vote is thus: ambivalent; with a logically weak prejudice for
> unmasked headers.
>
>
> On Thu, Mar 10, 2011 at 2:49 PM, John Tamplin <jat@google.com> wrote:
>> On Thu, Mar 10, 2011 at 2:36 PM, David Endicott <dendicott@gmail.com> wrote:
>>>
>>> Afterthought:  an unmasked header would allow Websocket aware
>>> intermediaries to manipulate frames without unmasking them.
>>> Websocket aware load balancers and distributed frameworks come to
>>> mind.
>>
>> Right, that has been the main objection (by my estimation anyway) to masking
>> the header.  However, unmasking 2-10 bytes doesn't seem like a large
>> burden.
>> --
>> John A. Tamplin
>> Software Engineer (GWT), Google
>>
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