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@xxxxxxxx [mailto:ietf-bounces@xxxxxxxx] On > Behalf Of Simon Josefsson > Sent: Wednesday, July 22, 2009 12:32 PM > To: ietf@xxxxxxxx; tls@xxxxxxxx > 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@xxxxxxxx> 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@xxxxxxxx mailing lists by 2009-08-10. > Exceptionally, comments > > may be sent to iesg@xxxxxxxx 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 > _______________________________________________ > Ietf mailing list > Ietf@xxxxxxxx > https://www.ietf.org/mailman/listinfo/ietf > _______________________________________________ Ietf@xxxxxxxx https://www.ietf.org/mailman/listinfo/ietf