Re: [TLS] Pull Request: Removing the AEAD explicit IV

Watson Ladd <watsonbladd@gmail.com> Thu, 19 March 2015 04:21 UTC

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From: Watson Ladd <watsonbladd@gmail.com>
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Subject: Re: [TLS] Pull Request: Removing the AEAD explicit IV
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I'm afraid that by radically changing the record layer we may be
working ourselves into a corner. If we're going to make a change this
radical, why not make equally radical changes to simplify the protocol
further if that's possible? I'm also not sure what we're supposed to
be gaining from this change: while it's true that we don't need to
send the explicit nonce, I don't know that we are losing anything from
having it. Yes, I know the ChaCha draft does it a seemingly more
sensible way, but the last thing we need is to further increase the
codesize of TLS implementations.

I do know that a recently implemented extension to FreeBSD won't work
anymore without some changes. (see
http://2015.asiabsdcon.org/timetable.html.en#P7A for an abstract)

Sincerely,
Watson Ladd