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Re: [secdir] [Cfrg] Time to recharter CFRG as a working group? Was: Re: ISE seeks help with some crypto drafts

Peter Gutmann <pgut001@cs.auckland.ac.nz> Tue, 19 March 2019 01:08 UTC

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From: Peter Gutmann <pgut001@cs.auckland.ac.nz>
To: Paul Wouters <paul@nohats.ca>, Watson Ladd <watsonbladd@gmail.com>
CC: denis bider <denisbider.ietf@gmail.com>, secdir <secdir@ietf.org>, "RFC ISE (Adrian Farrel)" <rfc-ise@rfc-editor.org>, Martin Thomson <mt@lowentropy.net>
Thread-Topic: [secdir] [Cfrg] Time to recharter CFRG as a working group? Was: Re: ISE seeks help with some crypto drafts
Thread-Index: AQHU3aTDUNM95/0j6k6IffzkMJOWPaYQyH0AgAFcYn0=
Date: Tue, 19 Mar 2019 01:08:07 +0000
Message-ID: <1552957626423.33373@cs.auckland.ac.nz>
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Subject: Re: [secdir] [Cfrg] Time to recharter CFRG as a working group? Was: Re: ISE seeks help with some crypto drafts
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Paul Wouters <paul@nohats.ca> writes:

>The standard should not be “bug compatible with the dominant implementation”

Just an additional note to this, the standard currently literally is "bug
compatible with the dominant implementation".  If you implement SSH as per the
core RFCs, sticking to all the MUSTs and whatnot, it won't talk to OpenSSH,
which means it de facto won't work.

Also, expanding on Denis' comment about the PROTOOCOL doc:

  Note that OpenSSH's sftp and sftp-server implement revision 3 of the SSH
  filexfer protocol described in:

  https://www.openssh.com/txt/draft-ietf-secsh-filexfer-02.txt

  Newer versions of the draft will not be supported, though some features
  are individually implemented as extensions described below.

I don't know if much, or even anything, supports any of draft-ietf-secsh-
filexfer-03.txt through to draft-ietf-secsh-filexfer-13.txt.  So the standard
in this case is "use a 17-year-old expired draft, but not any newer version of
the same document".

Peter.

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