Hi Ray,
As I recall, PEM cannot be translated into PKCS 7 or vice-versa without
knowledge of secret cryptographic information, meaning that I cannot
create a MSAM for AOCE which auto-converts PEM msgs. into PKCS 7 format
for AOCE for example...
A PEM message can always be translated into a valid PKCS #7 message
without any cryptographic operations. AOCE is not a good example
because that environment relies on the creation and presence of a
signed attribute (an extension only in the PKCS) for carrying the time
of signing.
-steve