Re: PGP3.0 & ElGamal

["Mark M." <markm@voicenet.com>]

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On Fri, 15 Nov 1996, Bert-Jaap Koops wrote:

> paul@fatmans.demon.co.uk wrote:
> > I know 3.0 uses discrete log cryptography but whether it will be 
> > El Gamal or DH or other I don`t know. I would imagine in the end it 
> > would come down to a question of what is unpatented first and I have 
> > no idea on the patent date for El Gamal (is it even patented?) but DH 
> > hasn`t long to go....
> 
> According to Schneier, ElGamal isn't patented, but claimed to be 
> covered by the Diffie-Hellman patent, which expires 29 April 1997.

Actually, it expires in either September or October of 1997.  The expiration
time of patents was changed from 17 after it is issued to 20 years after
application.

Mark
- -- 
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