While I see that draft-ietf-tls-extractor is listed in section IV of
#1154 IPR disclosure as related material, I see that it is explicitly
not listed in section V part C which lists what is specifically covered
by the disclosure. I don't think Certicom is claiming IPR on
draft-ietf-tls-extractor because it is not among the list of documents
in section V.
Joe
-----Original Message-----
From: ietf-bounces(_at_)ietf(_dot_)org
[mailto:ietf-bounces(_at_)ietf(_dot_)org] On
Behalf Of Simon Josefsson
Sent: Wednesday, July 22, 2009 12:32 PM
To: ietf(_at_)ietf(_dot_)org; tls(_at_)ietf(_dot_)org
Subject: Re: Last Call: draft-ietf-tls-extractor (Keying
Material Exportersfor Transport Layer Security (TLS)) to
Proposed Standard
With the caveat that I have recently returned from vacation,
and consequently may have missed some clarifications or paged out some
context:
If the #1154 IPR disclosure is the final word from Certicom
on this document, I don't support advancing this document on
the standards track. My concern remains that Certicom claims
they have IPR that covers the document -- that is what the
#1154 disclosure says (section IV). The additional
information provided in the PDF is not helping: it grants a
license for use together with ECC. It doesn't say anything
about the use without ECC.
The way I see it, TLS implementers and the broader Internet
does not gain something significant by having this document
published. Other IETF documents can use the TLS PRF to
derive keying material. On the contrary, it seems both TLS
implementers and the broader Internet community would be hurt
by publishing the document since having patent threats
looming over widely used techniques has stability and
interoperability impacts.
I recall that Certicom was positive about clarifying their
intentions so maybe we can continue that discussion and get
something more useful than the recent disclosure.
Speaking as TLS implementer of the document and document [1]
author that reference this document, /Simon
[1]
http://tools.ietf.org/html/draft-josefsson-krb5starttls-bootstrap-02
The IESG <iesg-secretary(_at_)ietf(_dot_)org> writes:
The IESG has received a request from the Transport Layer Security WG
(tls) to consider the following document:
- 'Keying Material Exporters for Transport Layer Security (TLS) '
<draft-ietf-tls-extractor-06.txt> as a Proposed Standard
The IESG plans to make a decision in the next few weeks,
and solicits
final comments on this action. Please send substantive comments to
the ietf(_at_)ietf(_dot_)org mailing lists by 2009-08-10.
Exceptionally, comments
may be sent to iesg(_at_)ietf(_dot_)org instead. In either case, please
retain
the beginning of the Subject line to allow automated sorting.
The file can be obtained via
http://www.ietf.org/internet-drafts/draft-ietf-tls-extractor-06.txt
IESG discussion can be tracked via
https://datatracker.ietf.org/public/pidtracker.cgi?command=view_id&dTa
g=16821&rfc_flag=0
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