Agree. It should read:
There are two formats for signed messages defined for S/MIME:
application/pkcs7-mime with SignedData, and multipart/signed.
Sending agents MUST support the multipart/signed form, and SHOULD
support the application/pkcs7-mime form. Receiving agents SHOULD
be able to handle both.
Chris
-----Original Message-----
From: owner-ietf-smime(_at_)mail(_dot_)imc(_dot_)org
[mailto:owner-ietf-smime(_at_)mail(_dot_)imc(_dot_)org] On Behalf Of Jim Schaad
Sent: Friday, March 26, 2004 02:16
To: ietf-smime(_at_)imc(_dot_)org
Subject: Interop Requirement for Signed Data formats
In my last review of the document I found the following text in
section 3.4
There are two formats for signed messages defined for S/MIME:
application/pkcs7-mime with SignedData, and multipart/signed. In
general, the multipart/signed form is preferred for sending, and
receiving agents SHOULD be able to handle both.
The problem here is that there is no interop in the signed
message format as specified by the above statement. I.E. Person
one could implement application/pkcs7-mime only and person two
could implemement multipart/signed only -- no interop.
The best change for interop purposes is to change the SHOULD to a
MUST.
Comments?
Jim