GPG/PGP interoperability with Digital certificates?

[Werner Koch]

On Tue, 31 Jul 2001 14:53:31 -0700, Yvonne & Paul Keser said:

> Is it possible to exchange encrypted/signed emails with people using digital 
> certificates?

I guess you do not mean digital certificates (this is what all
electronic signature protocols are using) but X.509 certificates which
are used in S/MIME.

Well, this is not possible. X.509 and OpenPGP are totally different
protocols and can't interoperate.  In future we might agree on a way
to allow for that but it is not easy and the thing NAI uses is a
proprietary extension to OpenPGP.

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Werner Koch        Omnis enim res, quae dando non deficit, dum habetur
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