Re: [jose] Barry Leiba's No Objection on draft-ietf-jose-json-web-encryption-32: (with COMMENT)

["Jim Schaad" <[e-mail]>]

> -----Original Message-----
> From: Mike Jones [mailto:[e-mail]]
> Sent: Saturday, October 18, 2014 3:28 PM
> To: Jim Schaad; 'Barry Leiba'
> Cc: [e-mail]; jose-
> [e-mail]; 'The IESG'; [e-mail]
> Subject: RE: [jose] Barry Leiba's No Objection on
draft-ietf-jose-json-web-
> encryption-32: (with COMMENT)
> 
> > > The intent is b.  I propose that the words "This member MUST be
> > > present, even if the array elements contain only the empty JSON
> > > object "{}"" be changed to "This member MUST be present with exactly
> > > one array element per recipient, even if some or all of the array
> > > element values are the empty JSON object {}".  Would that be clearer?
> >
> > I think that would have helped me.  Again, another small point.
> >
> > OK
> >
> > [JLS]  I think that this language may not be correct.  Did you mean to
imply
> that the following is a legal value for the "recipients" property. 
"[{},{}]"
> > It appears that there can be any number of empty array elements can be
> present.
> >
> > If this is not the case I will try and look at proposing some text.
> 
> The full text about the recipients array at
http://tools.ietf.org/html/draft-
> ietf-jose-json-web-encryption-35#section-7.2 is:
> 
>    recipients
>       The "recipients" member value MUST be an array of JSON objects.
>       Each object contains information specific to a single recipient.
>       This member MUST be present with exactly one array element per
>       recipient, even if some or all of the array element values are the
>       empty JSON object "{}" (which can happen when all Header Parameter
>       values are shared between all recipients and when no encrypted key
>       is used, such as when doing Direct Encryption).
> 
> So it's not that any number of empty array elements can be present.  It's
that
> exactly one JSON object must be present in the array per recipient, some
of
> which may be empty because of the parameter choices made.

This does not answer my question.  Is it a legal value?

Jim

> 
> 				-- Mike