Re: [IPsec] IPR Disclosure: Certicom Corporation's Statement about IPR related to draft-ietf-ipsecme-dh-checks-04

Matthew Campagna <> Mon, 13 May 2013 16:11 UTC

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From: Matthew Campagna <>
To: Paul Hoffman <>, IPsecme WG <>
Thread-Topic: [IPsec] IPR Disclosure: Certicom Corporation's Statement about IPR related to draft-ietf-ipsecme-dh-checks-04
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Subject: Re: [IPsec] IPR Disclosure: Certicom Corporation's Statement about IPR related to draft-ietf-ipsecme-dh-checks-04
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Paul et al,

   I would like to draw the groups attention to "Section VIII. Other Notes:" of the declaration  It highlights previous declarations in regards to the referenced patent and its use in affiliated IPSec and IKE specifications.

  I personally hope that these earlier statements cover the bulk of concerns and expected uses.

    Matt Campagna

Matthew Campagna - Director, Certicom Research 
direct          203.894.9777
office           877.746.5831x14181#

-----Original Message-----
From: [] On Behalf Of Paul Hoffman
Sent: Friday, May 10, 2013 1:21 PM
To: IPsecme WG
Subject: Re: [IPsec] IPR Disclosure: Certicom Corporation's Statement about IPR related to draft-ietf-ipsecme-dh-checks-04

On May 10, 2013, at 10:13 AM, Michael Richardson <> wrote:

> I can not speculate as to whether there is prior art, but it seems to 
> match what we have been discussing.

<chair-hat on>
"We" have not been discussing it, and nor should we. Certicom has filed numerous IPR statements with the IETF over more than a decade. Earlier discussions of earlier IPR statements have not come to any general understanding of what Certicom claims and what they intend to do with those claims. In the absence of that understanding (which can be aided by Certicom at any time), there is no point in using the WG mailing list for guessing.

WG participants who want to read more about IPR are advised to see <>.

--Paul Hoffman
IPsec mailing list

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