Agree. The OID in ContentInfo should not be OPTIONAL.
At 09:42 AM 2/22/99 -0500, Bonatti, Chris wrote:
I would submit that the 'content' field in the General Syntax section is
correct. The instance of OPTIONAL in the appendix must be a copy artifact
from the 'EncapsulatedContentInfo', in which the 'content' field is
correctly optional. I can see no legitimate use of CMS in which you would
send only a 'contentType' OID. Even if someone were sending a "detached
content" in a separate body part, either MIME or X.400 mail systems are
perfectly capable of attaching a content types for that information without
utilizing this structure.
Russ,
Browsing through my historical archive of now "non-existent" I-Ds, I see
that the OPTIONAL tag seems to have fallen out of the General Syntax
starting in version 3 of CMS. Do you remember the reasoning behind the
change?
Chris
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William Ottaway wrote:
Within the body of CMS 10 ContentInfo is defined as : -
ContentInfo ::= SEQUENCE {
contentType ContentType,
content [0] EXPLICIT ANY DEFINED BY contentType }
However, in the appendix ContentInfo is defined as : -
ContentInfo ::= SEQUENCE {
contentType ContentType,
content [0] EXPLICIT ANY DEFINED BY contentType OPTIONAL }
I assume the one within the body (i.e. content not optional) is correct.
Bill.
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