[7] James Galvin, Sandy Murphy, Steve Crocker, and Ned Freed.
Security Multiparts for MIME: Multipart/Signed and
Multipart/Encrypted. RFC XXXX, Trusted Information Systems
and Innosoft, XXXX 1994.
so I'm puzzled as to where this reference might be. I didn't see an
obvious internet draft with that as the title, either.
The draft document you are looking for is:
draft-ietf-pem-sigenc-03.txt
The document is pending an issuing of a last call by the PEM working
group chair.
Jim