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Re: [TLS] Renegotiation: trying to summarize

Martin Thomson <martin.thomson@gmail.com> Thu, 19 June 2014 23:23 UTC

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Date: Thu, 19 Jun 2014 16:23:19 -0700
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From: Martin Thomson <martin.thomson@gmail.com>
To: Andrei Popov <Andrei.Popov@microsoft.com>
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Subject: Re: [TLS] Renegotiation: trying to summarize
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On 19 June 2014 16:19, Andrei Popov <Andrei.Popov@microsoft.com> wrote:
> It also seems that #1 and #2 break (or significantly complicate) existing TLS client auth scenarios, while #3 and #4 allow these client auth scenarios.

Indeed.  This is perhaps the biggest drawback to making session
properties immutable.  We know that people use this feature.

Personally, I think that we can find a better solution for that.  I've
proposed one option that relies on changes in the application
protocol; others have suggested that we could provide a facility
within TLS to support this use case.  Depending on what you think of
those options, it might reduce the severity of losing the feature.

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