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Re: [Emu] RFC 7170 (TEAP) errata

Joseph Salowey <joe@salowey.net> Mon, 22 July 2019 17:50 UTC

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From: Joseph Salowey <joe@salowey.net>
Date: Mon, 22 Jul 2019 13:50:26 -0400
Message-ID: <CAOgPGoBXrm0kGk4xsSen9ihCKRhVYgzPQR-H0C5AFtY9wChxqQ@mail.gmail.com>
To: Jouni Malinen <jkmalinen@gmail.com>
Cc: emu@ietf.org
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Subject: Re: [Emu] RFC 7170 (TEAP) errata
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On Mon, Jul 1, 2019 at 4:11 PM Jouni Malinen <jkmalinen@gmail.com> wrote:

> <snip>
>
> (1) Crypto-Binding TLV format for the cases where the negotiated TLS
> cipher suite uses SHA256 (or SHA384, for that matter) instead of SHA-1 (and
> I'd hope all deployments of TEAP would be recent enough to avoid use of
> SHA-1..):
> https://www.rfc-editor.org/errata/eid5768
>
>
> [Joe] I'd like to hear if anyone has an implementation, and how they
implemented on a cipher suite that is not SHA-1.  My feeling is that it
would be better to make the TLV length variable with the hash length.
However, I do not see why truncating would work as well.


>
> - Jouni
>
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