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Re: [nfsv4] Roman Danyliw's Discuss on draft-ietf-nfsv4-rpc-tls-08: (with DISCUSS and COMMENT)

David Noveck <davenoveck@gmail.com> Sat, 22 August 2020 08:50 UTC

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From: David Noveck <davenoveck@gmail.com>
Date: Sat, 22 Aug 2020 04:49:56 -0400
Message-ID: <CADaq8jdfXiRV5awmw54U7PEBxt6HucjhK8TW55ft_UFwLKg+Jg@mail.gmail.com>
To: Chuck Lever <chuck.lever@oracle.com>
Cc: NFSv4 <nfsv4@ietf.org>, The IESG <iesg@ietf.org>, Roman Danyliw <rdd@cert.org>, "draft-ietf-nfsv4-rpc-tls@ietf.org" <draft-ietf-nfsv4-rpc-tls@ietf.org>, nfsv4-chairs <nfsv4-chairs@ietf.org>
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Subject: Re: [nfsv4] Roman Danyliw's Discuss on draft-ietf-nfsv4-rpc-tls-08: (with DISCUSS and COMMENT)
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no objection on my part.

On Fri, Aug 21, 2020, 4:49 PM Chuck Lever <chuck.lever@oracle.com> wrote:

> To the WG:
>
> > On Aug 21, 2020, at 3:45 PM, Roman Danyliw <rdd@cert.org> wrote:
> >
> > >>> -- Section 5.2.4.  The token binding mechanism suggested here,
> RFC8471, only
> > >>> applies to TLS v1.2.  The expired draft-ietf-tokbind-tls13 provides
> the TLS
> > >>> v1.3 mechanism.
> > >>
> > >> Potential replacement:
> > >>
> > >> OLD:
> > >>
> > >> 5.2.4.  Token Binding
> > >>
> > >>  This mechanism is OPTIONAL to implement.  In this mode, a token
> > >>  uniquely identifies the RPC peer.
> > >>
> > >>  Versions of TLS after TLS 1.2 contain a token binding mechanism that
> > >>  is more secure than using certificates.  This mechanism is detailed
> > >>  in [RFC8471].
> > >>
> > >> NEW:
> > >>
> > >> 5.2.4.  Token Binding
> > >>
> > >>  This mechanism is OPTIONAL to implement.  In this mode, a token
> > >>  uniquely identifies the RPC peer.  The TLSv1.3 token binding
> > >>  mechanism is detailed in [I-D.ietf-tokbind-tls13].
> > >>
> > >>
> > >> Another option would be to remove this section.
> >
> >
> > I leave this up to the working group/responsible AD to sort out.  My
> DISCUSS is on the fact this this behavior needs to be specified for TLS
> v1.3 not on how it gets documented.  My recommendation would be to remove
> the section – there is no IETF consensus reference for this behavior.  This
> binding can always be specified later.  If there is a desire to use
> ietf-tokbind-tls13 and there is work planned to publish it (i.e., pull it
> out of expired state and iterate to completion), this document could also
> wait in a MISREF state with the RFC Editorial until it is published.  I
> suspect there is also the option of re-calling consensus on the document
> for a downref to an unpublished document.  I’m flexible.
>
> It seems to me that leaving this section in place introduces an
> indeterminate delay before publication. At this point my preference
> would be to remove all discussion of token binding, since it's not
> clear when TLS v1.3 will properly support it.
>
> Is there any objection to removal?
>
>
> --
> Chuck Lever
>
>
>
>

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