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Re: Proxies (includes call for adopting new work item, call for input)

From: Eric Rescorla <ekr@rtfm.com>
Date: Sun, 22 Jun 2014 15:26:25 -0700
Message-ID: <CABcZeBMBm5oP=4COF_snbZ28c8UBP6B90ujb6FT=BuKyceRDvQ@mail.gmail.com>
To: "Diego R. Lopez" <diego@tid.es>
Cc: Martin Nilsson <nilsson@opera.com>, HTTP Working Group <ietf-http-wg@w3.org>
On Sun, Jun 22, 2014 at 1:48 PM, Diego R. Lopez <diego@tid.es> wrote:

>  On 22 Jun 2014, at 21:48 , Eric Rescorla <ekr@rtfm.com> wrote:
>  However, I think the main *technical* issue here is what, if any,
> support browsers
>  ought to have for allowing network operators to install credentials
> which allow
> them to act as a proxy for connections which would otherwise be end-to-end
> secured between the client and the server. This may use the same technical
> mechanisms once that's done (and in fact it currently mostly does), but
> from
> a policy perspective it's totally different.
>  I disagree: I see the split UA policy-wise equivalent to the proxy once
> you install your browser: you put your trust on the browser developers
> *and* on the the proxy operator: when you install the browser you take a
> single leap of faith, from that moment on you (implicitly) putting your
> trust on the proxy operator: whether it is the same or a different
> organization that develop the browser is immaterial.

I'm not sure what to tell you. It doesn't seem like a very complicated
piece of
security analysis that trusting two people is a bigger deal than trusting
And this is before we get to the fact that in many cases the MITM proxies
are in place specifically to ensure that the user uses the browser in
with the network's policies rather than his own, a situation that does not
in a typical split browser scenario.


>  Be goode,
> --
> "Esta vez no fallaremos, Doctor Infierno"
> Dr Diego R. Lopez
> Telefonica I+D
> http://people.tid.es/diego.lopez/
> e-mail: diego@tid.es
> Tel:    +34 913 129 041
> Mobile: +34 682 051 091
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Received on Sunday, 22 June 2014 22:27:34 UTC

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