Re: [TLS] draft-green-tls-static-dh-in-tls13-01

Roland Zink <roland@zinks.de> Sat, 15 July 2017 21:04 UTC

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To: "Salz, Rich" <rsalz@akamai.com>, "tls@ietf.org" <tls@ietf.org>
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From: Roland Zink <roland@zinks.de>
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Date: Sat, 15 Jul 2017 23:03:57 +0200
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Subject: Re: [TLS] draft-green-tls-static-dh-in-tls13-01
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RFC 3234 "Middleboxes: Taxonomy and Issues" says:

1.1. Terminology

    The phrase "middlebox" was coined by Lixia Zhang as a graphic
    description of a recent phenomenon in the Internet.  A middlebox is
    defined as any intermediary device performing functions other than
    the normal, standard functions of an IP router on the datagram path
    between a source host and destination host.

Even a load balancer may considered "middlebox", see section 2.8 of RFC 
3234.


Anyway it just depends on what you call middlebox and doesn't matter 
much regarding draft-green-tls-static-dh-in-tls13-01.


Roland



Am 15.07.2017 um 22:47 schrieb Salz, Rich:
>> I think reverse proxies are middleboxes regardless if they have official origin
>> TLS certificates. From the TLS viewpoint they may be the endpoint although
>> from the HTTP viewpoint they are not.
> This is wrong.
>
>  From the HTTP viewpoint  -- of the origin! -- they are not middleboxes., not intermediaries.
>
> It is no different from a load balancer sending you to a different data center.