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Re: [TLS] raw unofficial minutes: TLS WG: IETF-82 Taipei

Yoav Nir <ynir@checkpoint.com> Sat, 19 November 2011 06:36 UTC

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From: Yoav Nir <ynir@checkpoint.com>
To: Nikos Mavrogiannopoulos <nmav@gnutls.org>
Date: Sat, 19 Nov 2011 08:36:19 +0200
Thread-Topic: [TLS] raw unofficial minutes: TLS WG: IETF-82 Taipei
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Cc: "tls@ietf.org" <tls@ietf.org>
Subject: Re: [TLS] raw unofficial minutes: TLS WG: IETF-82 Taipei
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On Nov 18, 2011, at 2:33 PM, Nikos Mavrogiannopoulos wrote:

> On Fri, Nov 18, 2011 at 1:17 PM, Badra <mbadra@gmail.com> wrote:
> 
>>> sean (st): badra has IPR in his draft too -- need to consider that
>> I am not a lawyer, but I think that draft-agl-tls-encryptedclientcerts-00
>> and any other document - that proposes encrypting the client's certificate
>> during the initial TLS handshake- are equally relevant to the same IPR.
> 
> I would be very surprised on something like that because client and
> server certificate encryption was first(*) used in IKEv2 (RFC4306)
> which predates the disclosed patents.
> 
> (*) to my knowledge. Protocols using this technique before that, might exist.

IKEv1 also encrypts the certificates in messages #5 and #6 of Main Mode, so that takes us to 1998 for publication, and probably several years earlier for drafts.

Yoav

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