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Re: Looking for statement of patent issues re ISAKMP/Oakley

Hugo Krawczyk <hugo@ee.technion.ac.il> Thu, 12 March 1998 14:34 UTC

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Date: Thu, 12 Mar 1998 16:49:14 +0200
From: Hugo Krawczyk <hugo@ee.technion.ac.il>
Message-Id: <199803121449.QAA23746@ee.technion.ac.il>
To: dharkins@cisco.com, pkoning@xedia.com
Subject: Re: Looking for statement of patent issues re ISAKMP/Oakley
Cc: ipsec@tis.com
Sender: owner-ipsec@ex.tis.com
Precedence: bulk

IBM US Patent 5,148,479 covers (or at least so say the lawyers)
some of the techniques used in the protocols (especially quick mode).
However, RFC1822 provides a "grant of rights" by IBM for usage of this
patent in key management of ipsec.

(The text is somewhat outdated as for its terminology, but still refers 
to "Photuris or derivatives" which should include IKE)

Hugo

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