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Re: [Curdle] RSA key transport for SSH (RFC 4432) and forward secrecy

Peter Gutmann <pgut001@cs.auckland.ac.nz> Thu, 11 February 2021 05:57 UTC

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From: Peter Gutmann <pgut001@cs.auckland.ac.nz>
To: "Mark D. Baushke" <mdb@juniper.net>, Simon Tatham <anakin@pobox.com>, Ron Frederick <ronf@timeheart.net>, Alexandre Becoulet <alexandre.becoulet@free.fr>, Keith Winstein <keithw@mit.edu>, Hari Balakrishnan <hari@mit.edu>, "mosh-devel@mit.edu" <mosh-devel@mit.edu>
CC: Benjamin Kaduk <kaduk@mit.edu>, "curdle@ietf.org" <curdle@ietf.org>
Thread-Topic: [Curdle] RSA key transport for SSH (RFC 4432) and forward secrecy
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Date: Thu, 11 Feb 2021 05:57:16 +0000
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References: <20210211042551.GV21@kduck.mit.edu> <1613018828089.63687@cs.auckland.ac.nz>, <94759.1613022658@svl-bsdx-06.juniper.net>
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Archived-At: <https://mailarchive.ietf.org/arch/msg/curdle/-aLQZCd-pEpJgYVDopMpGn6dPvc>
Subject: Re: [Curdle] RSA key transport for SSH (RFC 4432) and forward secrecy
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Mark D. Baushke <mdb@juniper.net> writes:

>I see that rsa2048-sha256 is supported by the following implementations:

Of those, mosh and Putty are client only so presumably they only do it for
compatibility purposes.  Possibly a more useful form of the poll would be
"which servers still rely on RSA?".

Peter.

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