pem-dev
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Re: Binary or Compressed PEM files

1993-01-11 11:11:00
Date: Sun, 10 Jan 93 14:55:40 EST
From: Mark Riordan <mrr(_at_)scss3(_dot_)cl(_dot_)msu(_dot_)edu>
To: pem-dev(_at_)TIS(_dot_)com
Subject: Binary or Compressed PEM files

...
The principal question is how we should indicate the type of 
file in the PEM headers.

Our current thinking is to implement a PEM header like:

But you are using MIME notation here so you should follow MIME
rules.  Especially since that will make interoperating much easier..

Content-Type: Type[/Subtype][,Modifier[/Submodifier]]*

This sort of thing was discussed in the MIME WG at length and the decision
was made to only do type/subtype.  Anything extra to specify are done
with options in option="value" format.  

 Examples:

Content-Type: Binary
Content-Type: Binary,Compressed/compress

or some such.
...
Our goal is to stay as PEM-compliant and MIME-compliant
as possible without taking on the task of implementing 
full MIME.  (Implementing full PEM is an eventual goal,
but we're making no commitments.)

Your example is *NOT* MIME-Compliant in the slightest.  The MIME
equivalent in MIME is:

        Content-Type: application/octet-stream; conversions="x-compress"

We don't want to go off and do something unique and 
non-interoperable, but we do want to implement something
in the not-too-distant future.

Yes, please *don't*.  The momentum behind MIME is building rapidly
and you don't wanna get run over.


<- David Herron <david(_at_)twg(_dot_)com> (work) 
<david(_at_)davids(_dot_)mmdf(_dot_)com> (home)
<-
<- "That's our advantage at Microsoft; we set the standards and we can change
them."
<- Karen Hargrove of Microsoft quoted in the Feb 1993 Unix Review editorial.

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