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The following archive was created by hippie-mail 7.98617-22 on Fri Aug 21 1998 - 17:16:53 ADT
Paulo Barreto (pbarreto@nw.com.br)
Mon, 06 Apr 1998 23:09:31 -0300
At 20:29 1998.04.06 -0400, you wrote:
>Jim Gillogly writes:
>> Perhaps it's both then, since Hal is right about the rumor. At the
>> IETF S/MIME working group meeting on 30 Mar it was announced in
>> suitably friend-of-a-friend third person terms that some variants of
>> the ANSI X9.42 Diffie-Hellman (aka ElGamal) scheme had had patents
>> applied for by an unnamed company or companies.
>
Lewis McCarthy <lmccarth@cs.umass.edu> wrote:
>Rather than the Schnorr patent, this may be related to the
>patent(s) on the Nyberg-Rueppel signature schemes, apparently now held
>by Certicom.
I've heard something about IBM patenting what they call "Universal
Diffie-Hellman" or so. I'm only surprised that an algorithm could be
repatented (assuming this is what happened)...
As for NR, it seems that Rainer Rueppel gave Certicom exclusive rights on
his patent for America (but the European patent is still held by his
company -- R^3 if I remember it).
Paulo Barreto.
The following archive was created by hippie-mail 7.98617-22 on Fri Aug 21 1998 - 17:16:53 ADT