Date: Thu, 23 Apr 2020 02:19:13 -0700
From: Kazuho Oku <notifications@github.com>
Reply-To: quicwg/base-drafts
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Message-ID: <quicwg/base-drafts/pull/3595/c618286127@github.com>
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Subject: Re: [quicwg/base-drafts] Prohibit TLS 1.3 middlebox compatibility
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> That seems fine, but in my view the fault was with the ClientHello, not the CCS.

I agree that the fault is with ClientHello, it's merely a coincidence that we detect that problem when trying to build particular portion of the response. In case of picotls, return of this error will be propagated to the application alongside a partially built buffer, so QUIC stacks using picotls would just send the TLS error code.

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<p></p>
<blockquote>
<p>That seems fine, but in my view the fault was with the ClientHello, not the CCS.</p>
</blockquote>
<p>I agree that the fault is with ClientHello, it's merely a coincidence that we detect that problem when trying to build particular portion of the response. In case of picotls, return of this error will be propagated to the application alongside a partially built buffer, so QUIC stacks using picotls would just send the TLS error code.</p>

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