Darrell:
Please take a look at RFC 2634, section 2.9. The outer-most CMS wrapper
should tell what content type is contained in the inner-most wrapper. Does
this help, even though it is much delayed?
Russ
-----Original Message-----
From: owner-ietf-smime(_at_)mail(_dot_)imc(_dot_)org
[mailto:owner-ietf-smime(_at_)mail(_dot_)imc(_dot_)org]
Sent: Saturday, June 14, 2003 7:43 AM
To: 'ietf-smime(_at_)imc(_dot_)org'
Subject: Determining if a message has multiple layers without processing
any of them
Hello,
I am currently attempting to determine if there is anything in the S/MIME
standard that would allow me to determine if a message was, for example,
signed then encrypted, without processing any of the security layers.
My understanding of the smime-type parameter is that it only applies to the
current layer of security, so for example, a message that was signed and
then encrypted will have an outer smime-type of enveloped-data with no clue
that there is a signature layer within.
Any insight into this is much appreciated.
Thanks,
Darrell