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Re: [saag] sntrup761x25519-sha512

Simon Josefsson <simon@josefsson.org> Tue, 23 May 2023 07:32 UTC

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From: Simon Josefsson <simon@josefsson.org>
To: saag@ietf.org
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Date: Tue, 23 May 2023 09:31:53 +0200
In-Reply-To: <f6aa133635084609b0032ab1cfbfb7ce@amazon.com> (Panos Kampanakis's message of "Fri, 19 May 2023 21:05:20 +0000")
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Subject: Re: [saag] sntrup761x25519-sha512
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"Kampanakis, Panos" <kpanos=40amazon.com@dmarc.ietf.org> writes:

> Hi Simon,
>
> I have asked this question to the ADs 3-4 years back and reopening
> CURDLE was not an option. Introducing PQ algorithms to SSH has also
> been discussed in SAAG before and the outcome was that there is no WG
> to do this work right now. So, imo AD-sponshorship is your only
> option.

Paul, Roman, what is your decision on AD-sponsoring
draft-josefsson-ntruprime-ssh?

> Personally, I would rather we standardized ECDH with Kyber in SSH
> instead of SNTRU because Kyber is making it into other protocols and
> was picked by NIST. I have nothing against SNTRU, and SNTRU+X25519 was
> a good early adoption for OpenSSH, but in my opinion it is better to
> converge on less primitives instead of more.

There is no either/or conflict here -- SNTRU is deployed and will be in
wide use on the Internet for the coming 5+ years.  It seems useful for
the IETF to be involved in standardizing protocols that are used on the
Internet.

/Simon

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