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Re: [TLS] Inclusion of OCB mode in TLS 1.3

Nikos Mavrogiannopoulos <nmav@redhat.com> Thu, 22 January 2015 17:28 UTC

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From: Nikos Mavrogiannopoulos <nmav@redhat.com>
To: Aaron Zauner <azet@azet.org>
Date: Thu, 22 Jan 2015 18:28:04 +0100
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Subject: Re: [TLS] Inclusion of OCB mode in TLS 1.3
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On Thu, 2015-01-22 at 17:47 +0100, Aaron Zauner wrote:
> Hi Nikos,
> 
> Nikos Mavrogiannopoulos wrote:
> > It will not. However, there will be no PFS fallback if for some reason
> > there is some attack on ECDHE that is not applicable on DHE. In any case
> > I don't find the issue critical. Even if removed it's only 2
> > ciphersuites saved, and we are nowhere close to believing that the
> > ciphersuite space is close to an end.
> Yes I agree. The issue I see is that confined/embedded might not have
> DHE as fallback in any case, because they probably opt to not support it
> because if plattform constraints.

Hi,
 I don't think you should associate TLS-PSK with embedded systems only.
In RFC7360 you'll see DTLS used with PSK for the radius protocol, which
is implemented in a bigger variety of systems than embedded.

regards,
Nikos

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