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Article #2449Re: PKP patents (legal question)
From: Steven Bellovin
Date: Thu, 24 Dec 1992 12:53
Date: Thu, 24 Dec 1992 12:53
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In article <168C761F.UC445585@mizzou1.missouri.edu>, UC445585@mizzou1.missouri.edu (John M. Kelsey) writes: > Does PKP hold patents to *all* forms of public-key cryptology, including > those methods still undiscovered? Or do they simply hold the patent to > all public key methods currently known? Or neither? There are claims in some of their patents that appear to claim all forms of public key cryptography and public key distribution systems (i.e., Diffie-Hellman). It isn't clear to me that those claims would withstand attack.
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Newsgroups: sci.crypt Path: arc1-ca.pugleaf.net!sparky!uunet!spool.mu.edu!uwm.edu!linac!att!att!dptg!ulysses!ulysses!smb From: smb@research.att.com (Steven Bellovin) Subject: Re: PKP patents (legal question) Message-ID: <1992Dec24.125347.6627@ulysses.att.com> Date: Thu, 24 Dec 1992 12:53:47 GMT References: <168C761F.UC445585@mizzou1.missouri.edu> Organization: AT&T Bell Laboratories Lines: 9