Article View: alt.security.pgp
Article #90Re: pgp headers for MIME
From: Marc VanHeyningen
Date: Fri, 22 Jan 1993 03:31
Date: Fri, 22 Jan 1993 03:31
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2070 bytes
Thus said andyr@wizzy.com (Andy Rabagliati):
>TW> I think pgp data should go so:
>TW>
>TW> Content-Type: text/plain; charset=ISO-8859-1
>TW> Content-transfer-encoding: X-PGP-{VERSION}
>TW>
>TW> Where {VERSION} would be: 2.0, 2.1, etc...
>TW>
>TW> This would allow the benefit of transferring text, sounds,
>TW> graphics, etc...
Quoting from RFC 1341:
However, unlike Content-Types and subtypes, the creation of
new Content-Transfer-Encoding values is explicitly and
strongly discouraged, as it seems likely to hinder
interoperability with little potential benefit. Their use
is allowed only as the result of an agreement between
cooperating user agents.
What's wrong with merely using a new Content-Type, something like
application/x-pgp or message/x-pgp, and having an encapsulated
Content-Type: contain the actual variety of data?
Or, you could model it after the MIME-PEM standard, and make a
multipart/x-pgp type. That would be the ideal solution, but it's only
worth doing if you thing PGP's current mechanism for message
formatting will really become the (or at least a) long-term standard.
Including version is a good idea, but it doesn't need to be part of
the subtype, you can just throw in version=2.1.
Creating a new Content-Transfer-Encoding is a very bad idea.
--
Marc VanHeyningen mvanheyn@whale.cs.indiana.edu MIME & RIPEM accepted
What's the use of a good quotation if you can't change it?
- Doctor Who
Technical Details
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<1993Jan21.223119.14095@news.cs.indiana.edu>Path:
arc1-ca.pugleaf.net!sparky!uunet!zaphod.mps.ohio-state.edu!pacific.mps.ohio-state.edu!linac!att!news.cs.indiana.edu!mvanheyn@strawberry.ucs.indiana.eduReferences:
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Newsgroups: alt.security.pgp,comp.mail.mime Path: arc1-ca.pugleaf.net!sparky!uunet!zaphod.mps.ohio-state.edu!pacific.mps.ohio-state.edu!linac!att!news.cs.indiana.edu!mvanheyn@strawberry.ucs.indiana.edu From: Marc VanHeyningen <mvanheyn@whale.cs.indiana.edu> Subject: Re: pgp headers for MIME Message-ID: <1993Jan21.223119.14095@news.cs.indiana.edu> X-Quoted: 27% Organization: Computer Science Dept, Indiana University References: <C18C4r.6K8@wizzy.com> Date: Thu, 21 Jan 1993 22:31:11 -0500 Lines: 38