+1 in favor of dropping
________________________________
From: Mike Jones <[email protected]>
To: "[email protected]" <[email protected]>
Sent: Tue, June 18, 2013 6:42:15 PM
Subject: [jose] Should we keep or remove the JOSE JWS and JWE MIME types?
The JWS and JWE documents currently define these MIME types for the convenience
of applications that may want to use them:
application/jws
application/jws+json
application/jwe
application/jwe+json
That being said, I’m not aware of any uses of these by applications at present.
Thus, I think that makes it fair game to ask whether we want to keep them or
remove them – in which case, if applications ever needed them, they could
define
them later.
Another dimension of this question for JWS and JWE is that it’s not clear that
the four types application/jws, application/jws+json, application/jwe, and
application/jwe+json are even the right ones. It might be more useful to have
generic application/jose and application/jose+json types, which could hold
either JWS or JWE objects respectively using the compact or JSON serializations
(although I’m not advocating adding them at this time).
Having different JWS versus JWE MIME types apparently did contribute to at
least
Dick’s confusion about the purpose of the “typ” field, so deleting them could
help eliminate this possibility of confusion in the future. Thus, I’m
increasingly convinced we should get rid of the JWS and JWE types and leave it
up to applications to define the types they need, when they need them.
Do people have use cases for these four MIME types now or should we leave them
to future specs to define, if needed?
-- Mike
P.S. For completeness, I’ll add that the JWK document also defines these MIME
types:
application/jwk+json
application/jwk-set+json
There are already clear use cases for these types, so I’m not advocating
deleting them, but wanted to call that out explicitly. For instance, when
retrieving a JWK Set document referenced by a “jku” header parameter, I believe
that the result should use the application/jwk-set+json type. (In fact, I’ll
add this to the specs, unless there are any objections.) Likewise,
draft-miller-jose-jwe-protected-jwk-02 already uses application/jwk+json. Both
could also be as “cty” values when encrypting JWKs and JWK Sets, in contexts
where that that would be useful._______________________________________________
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