Re: [TLS] AES-OCB in TLS [New Version Notification for draft-zauner-tls-aes-ocb-03.txt]

Aaron Zauner <azet@azet.org> Wed, 05 August 2015 22:48 UTC

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Date: Thu, 06 Aug 2015 00:48:01 +0200
From: Aaron Zauner <azet@azet.org>
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Subject: Re: [TLS] AES-OCB in TLS [New Version Notification for draft-zauner-tls-aes-ocb-03.txt]
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Hi,

Blumenthal, Uri - 0553 - MITLL wrote:
> Aaron,
> 
> Great work! I can't wait to see OCB standardized and implemented.
> 
> One thing though. There has been mentioning of Gligor patent(s) - were you able to look into that? Or perhaps Phil or Charanjit could comment on this (though technical people seldom make legal statements :)?
> 

I've written to Gligor and Donescu (his mail address is bouncing though
and I do not have another/current one). I've not received any replies as
of today. Rogaway, like myself, is not sure if that patent actually
relates to OCB. He's included it in his initial IPR statement on RFC
7253 [0] as a pre caution as far as I can tell. The patent by Gligor and
Donescu will expire on 18th of January 2021.

Aaron

[0] see
https://datatracker.ietf.org/ipr/search/?submit=draft&id=draft-irtf-cfrg-ocb
and https://datatracker.ietf.org/ipr/1682/