Re: [openpgp] Can the OpenPGP vs. S/MIME situation be fixed?

Peter Gutmann <> Mon, 04 July 2016 03:41 UTC

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From: Peter Gutmann <>
To: Daniel Kahn Gillmor <>, Hanno Böck <>, IETF OpenPGP <>
Thread-Topic: [openpgp] Can the OpenPGP vs. S/MIME situation be fixed?
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Date: Mon, 04 Jul 2016 03:41:18 +0000
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Subject: Re: [openpgp] Can the OpenPGP vs. S/MIME situation be fixed?
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Daniel Kahn Gillmor <> writes:

>I think we should be clear about what it would take to do what you're
>proposing; there are two main angles:
>* certificate interoperability (OpenPGP certs vs. X.509 certs)

This is easily solved in a technical spec, just define (to use the approach
I've been using in my code, which as worked more or less seamlessy for some
years), the use of sKID for S/MIME and issuerAndSerialNumber for PGP.

>* message interoperability (PGP/MIME vs. S/MIME)

This can't be solved by a technical spec, it's an application issue which you
resolve by e.g. writing a PGP plugin for Outlook.