"John Levine" <johnl(_at_)taugh(_dot_)com> writes:
Yes, the design of /encrypted separates meta-data from encrypted
content, but the encrypted content could be a message, yes?
Sure. Fire up your favorite S/MIME aware MUA, open a message, forward
it as an attachment to someone whose key you know and tell it to sign
the forwarded message. Works great, recipient will see the attached
message/rfc822.
Likewise for OpenPGP messages, for what it's worth. (Which of S/MIME or
OpenPGP one uses seems to be heavily driven by what community one is part
of. S/MIME appears to be the standard among the Windows security people,
but the Linux distribution security folks use OpenPGP essentially
exclusively.)
--
Russ Allbery (rra(_at_)stanford(_dot_)edu)
<http://www.eyrie.org/~eagle/>
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